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Re: Differential gears 1969 Marcos 3L V6

Re: Differential gears 1969 Marcos 3L V6

2004-02-02 by patemery@sympatico.ca

Dear Don! I am looking for higher gears to improve highway cruising. The existing unit is a Salisbury with 3.58:1 gear ratio. I need 3.0:1. Is the differential

RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-02 by Garry Diver

Hi Pat,
   The salisbury rear end you have is not the same as the US V6 cars and 
parts are now difficult to find. I have the same unit and am trying to 
source replacement parts in the UK so will add your CWP to my list.Is there 
anything else you need for the rear end while I am looking? I will put them 
on the next shipment if I find them.
On wheels we maybe able to help. In fact, I might suggest a deal with you 8" 
and  10" as I am looking for that size for racing. Are you interested?  We 
can then supply the ones you are looking for.
On the gearbox, My advice is go with the T5. It is a much better box, 
lighter and is easier to source for spares. Unfortunately you cannot use the 
existing bell housing or clutch mechanism. you will need a bell housing from 
the UK ( one of the Sierra models) and a modified clutch release.
Again we can supply these if you wish.

Let me know.
Garry Diver
MarcosParts USA




>From: <patemery@...>
>Reply-To: MarcosManiacs@yahoogroups.com
>To: <MarcosManiacs@yahoogroups.com>
>Subject: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
>Date: Mon, 2 Feb 2004 7:23:16 -0500
>

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Re: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-02 by Don Lattimer

Pat,
Guess Garry answered most of the questions. The bellhousing needed to use a T-5 is from the Essex V4 engine. Rare as hen's teeth but there are folks who make conversions. I think Minilite is the only wheel company that makes 15" in the "4 on 3 3/4" bolt pattern. I've just switched to "4 on 4 1/4" bolt pattern with new front alloy hubs. The rear just has to be swapped back to the 4 1/4" centers by moving the studs to their original position. Now I'm mounting 16x7 wheels with a 4 1/2" backspace.
Don Lattimer
#3m5759
Show quoted textHide quoted text
----- Original Message -----
Sent: Monday, February 02, 2004 4:23 AM
Subject: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

Dear Don!
I am looking for higher gears to improve highway cruising. The existing unit is a Salisbury with 3.58:1 gear ratio. I need 3.0:1. Is the differential the same as 6 cylinder Ford Falcon and Mustang? If not, where can I get the gears? Has anyone ever done this modification? I am currently looking for 15" x 7" wheels to replace the Minilites (13 x 8 and 13 x 10) for which I cannot get tires anymore. I have already purchased P205R50-15 for the front and P225R50-15 for the back. The front wheels will do with 0.197" negative offset while the back require 2.195" negative. I am expecting some information from Minilite Wheels in the U.K. I am prepared to make my own wheels if need be.
The next improvement will be to either replace the second gear ratio of 2.214:1 with 1.950:1 or fit a modern T5 5 Speed. Do you know where I can find the gear? Will a T5 fit the existing bolt pattern?
Best Regards, Pat Emery 5365

>
> From: "Don Lattimer"
> Date: 2004/01/31 Sat PM 11:31:47 EST
> To:
> Subject: [MarcosManiacs] Car of the Month
>
>

Yahoo! Groups Links

February's "car of the month" is Andy Seward's Mini Marcos, located in
Pennsylvania.

Hope you all are having a good new year. We will have some more cars on the
road this year with Dave Barton and Bob Magnotti nearing completion of their
rebuilds. Mine is undergoing the change from 13" wheels to 16". Also got a
bunch of parts from Garry Diver (Marcos Parts USA) when he passed thru
northern California on his round trip of the country to deliver parts, cars,
etc. Now I've got something to do on these long winter nights...

Regards,

Don Lattimer (Moderator)
#3m5759
Willits, CA, USA


Yahoo! Groups Links

Re: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-02 by Donny Lang

Pat,
I'm also changing to a taller rear gear, but gave up trying to find one for my my original axle. Since I am re-powering with a Triumph TR-8 3.5 engine and related M77 5-speed, I am also going to use the TR-8 rear axle. It has a 3.08:1 ratio and the same 3.75" lug pattern as the Marcos, but it is almost 2" wider track. I think I can still use it with stock Marcos alloys as far as fitting the rear fender openings (I understand all the 1980's Marcos cars were a similar wider track). All that is needed is to cut off the Triumph locating/mounting brackets off the housing and weld on the ones for the Marcos. I may use my originals, or I may have new ones fabricated.
The T-5 gearbox is an excellent choice (I am using one in a TVR project). Don L. said a Essex V-4 bellhousing may work. My Marcos is a a '69/'70 (steel chassis) with a Ford V-4. I am removing the driveline (though I haven't gotten that far yet!), but I don't know if the T-5 will bolt up where my 4-speed currently is. I will look to see if it may accept a T-5. Either way, both the V-4, 4-speed, and bellhousing are available.
I hope this helps! - Donny Lang
Show quoted textHide quoted text
----- Original Message -----
Sent: Monday, February 02, 2004 7:23 AM
Subject: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

Dear Don!
I am looking for higher gears to improve highway cruising. The existing unit is a Salisbury with 3.58:1 gear ratio. I need 3.0:1. Is the differential the same as 6 cylinder Ford Falcon and Mustang? If not, where can I get the gears? Has anyone ever done this modification? I am currently looking for 15" x 7" wheels to replace the Minilites (13 x 8 and 13 x 10) for which I cannot get tires anymore. I have already purchased P205R50-15 for the front and P225R50-15 for the back. The front wheels will do with 0.197" negative offset while the back require 2.195" negative. I am expecting some information from Minilite Wheels in the U.K. I am prepared to make my own wheels if need be.
The next improvement will be to either replace the second gear ratio of 2.214:1 with 1.950:1 or fit a modern T5 5 Speed. Do you know where I can find the gear? Will a T5 fit the existing bolt pattern?
Best Regards, Pat Emery 5365

>;
> From: "Don Lattimer"
> Date: 2004/01/31 Sat PM 11:31:47 EST
> To:
> Subject: [MarcosManiacs] Car of the Month
>
>

Yahoo! Groups Links

February's "car of the month" is Andy Seward's Mini Marcos, located in
Pennsylvania.

Hope you all are having a good new year. We will have some more cars on the
road this year with Dave Barton and Bob Magnotti nearing completion of their
rebuilds. Mine is undergoing the change from 13" wheels to 16". Also got a
bunch of parts from Garry Diver (Marcos Parts USA) when he passed thru
northern California on his round trip of the country to deliver parts, cars,
etc. Now I've got something to do on these long winter nights...

Regards,

Don Lattimer (Moderator)
#3m5759
Willits, CA, USA


Yahoo! Groups Links

Re: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-02 by Don Lattimer

This link has some great info on 5 speed conversions to different Ford engines, especially the Essex. Shows what needs changing, cutting, what fits, etc. Good reference.
Don
#3m5759
Show quoted textHide quoted text
----- Original Message -----
From: Donny Lang
Sent: Monday, February 02, 2004 2:23 PM
Subject: Re: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

Pat,
I'm also changing to a taller rear gear, but gave up trying to find one for my my original axle. Since I am re-powering with a Triumph TR-8 3.5 engine and related M77 5-speed, I am also going to use the TR-8 rear axle. It has a 3.08:1 ratio and the same 3.75" lug pattern as the Marcos, but it is almost 2" wider track. I think I can still use it with stock Marcos alloys as far as fitting the rear fender openings (I understand all the 1980's Marcos cars were a similar wider track). All that is needed is to cut off the Triumph locating/mounting brackets off the housing and weld on the ones for the Marcos. I may use my originals, or I may have new ones fabricated.
The T-5 gearbox is an excellent choice (I am using one in a TVR project). Don L. said a Essex V-4 bellhousing may work. My Marcos is a a '69/'70 (steel chassis) with a Ford V-4. I am removing the driveline (though I haven't gotten that far yet!), but I don't know if the T-5 will bolt up where my 4-speed currently is. I will look to see if it may accept a T-5. Either way, both the V-4, 4-speed, and bellhousing are available.
I hope this helps! - Donny Lang
----- Original Message -----
Sent: Monday, February 02, 2004 7:23 AM
Subject: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

Dear Don!
I am looking for higher gears to improve highway cruising. The existing unit is a Salisbury with 3.58:1 gear ratio. I need 3.0:1. Is the differential the same as 6 cylinder Ford Falcon and Mustang? If not, where can I get the gears? Has anyone ever done this modification? I am currently looking for 15" x 7" wheels to replace the Minilites (13 x 8 and 13 x 10) for which I cannot get tires anymore. I have already purchased P205R50-15 for the front and P225R50-15 for the back. The front wheels will do with 0.197" negative offset while the back require 2.195" negative. I am expecting some information from Minilite Wheels in the U.K. I am prepared to make my own wheels if need be.
The next improvement will be to either replace the second gear ratio of 2.214:1 with 1.950:1 or fit a modern T5 5 Speed. Do you know where I can find the gear? Will a T5 fit the existing bolt pattern?
Best Regards, Pat Emery 5365

>
> From: "Don Lattimer"
> Date: 2004/01/31 Sat PM 11:31:47 EST
> To:
> Subject: [MarcosManiacs] Car of the Month
>
>

Yahoo! Groups Links

February's "car of the month" is Andy Seward's Mini Marcos, located in
Pennsylvania.

Hope you all are having a good new year. We will have some more cars on the
road this year with Dave Barton and Bob Magnotti nearing completion of their
rebuilds. Mine is undergoing the change from 13" wheels to 16". Also got a
bunch of parts from Garry Diver (Marcos Parts USA) when he passed thru
northern California on his round trip of the country to deliver parts, cars,
etc. Now I've got something to do on these long winter nights...

Regards,

Don Lattimer (Moderator)
#3m5759
Willits, CA, USA


Yahoo! Groups Links



Yahoo! Groups Links

Re: Differential gears 1969 Marcos 3L V6

2004-02-02 by Don Lattimer

Donny,

Remember that the TR7/8 alxes are hub-centric, not lug-centric.  
Make sure the Marcos alloys fit proper.

Don
#3m5759


--- In MarcosManiacs@yahoogroups.com, "Donny Lang" <indigo@t...> 
wrote:
> Pat, 
> I'm also changing to a taller rear gear, but gave up trying to 
find one for my my original axle. Since I am re-powering with a 
Triumph TR-8 3.5 engine and related M77 5-speed, I am also going to 
use the TR-8 rear axle. It has a 3.08:1 ratio and the same 3.75" lug 
pattern as the Marcos, but it is almost 2" wider track. I think I 
can still use it with stock Marcos alloys as far as fitting the rear 
fender openings (I understand all the 1980's Marcos cars were a 
similar wider track). All that is needed is to cut off the Triumph 
locating/mounting brackets off the housing and weld on the ones for 
the Marcos. I may use my originals, or I may have new ones 
fabricated.
> The T-5 gearbox is an excellent choice (I am using one in a TVR 
project). Don L. said a Essex V-4 bellhousing may work. My Marcos is 
a  a '69/'70 (steel chassis) with a Ford V-4. I am removing the 
driveline (though I haven't gotten that far yet!), but I don't know 
if the T-5 will bolt up where my 4-speed currently is. I will look 
to see if it may accept a T-5. Either way, both the V-4, 4-speed, 
and bellhousing are available.  
> I hope this helps! - Donny Lang
>   ----- Original Message ----- 
>   From: patemery@s... 
>   To: MarcosManiacs@yahoogroups.com 
>   Sent: Monday, February 02, 2004 7:23 AM
>   Subject: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
> 
> 
>   Dear Don!
>   I am looking for higher gears to improve highway cruising. The 
existing unit is a Salisbury with 3.58:1 gear ratio. I need 3.0:1. 
Is the differential the same as 6 cylinder Ford Falcon and Mustang? 
If not, where can I get the gears? Has anyone ever done this 
modification? I am currently looking for 15" x 7" wheels to replace 
the Minilites (13 x 8 and 13 x 10) for which I cannot get tires 
anymore. I have already purchased P205R50-15 for the front and 
P225R50-15 for the back. The front wheels will do with 0.197" 
negative offset while the back require 2.195" negative. I am 
expecting some information from Minilite Wheels in the U.K. I am 
prepared to make my own wheels if need be. 
>   The next improvement will be to either replace the second gear 
ratio of 2.214:1 with 1.950:1 or fit a modern T5 5 Speed. Do you 
know where I can find the gear? Will a T5 fit the existing bolt 
pattern?
>   Best Regards, Pat Emery 5365
> 
>   > 
>   > From: "Don Lattimer" <donlattimer@p...>
>   > Date: 2004/01/31 Sat PM 11:31:47 EST
>   > To: <MarcosManiacs@yahoogroups.com>
>   > Subject: [MarcosManiacs] Car of the Month
>   > 
>   > 
> 
> 
> -------------------------------------------------------------------
-----------
>   Yahoo! Groups Links
> 
>     a.. To visit your group on the web, go to:
>     http://groups.yahoo.com/group/MarcosManiacs/
>       
>     b.. To unsubscribe from this group, send an email to:
>     MarcosManiacs-unsubscribe@yahoogroups.com
>       
>     c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms 
of Service. 
> 
> 
> 
> 
> -------------------------------------------------------------------
-----------
> 
> 
>   February's "car of the month" is Andy Seward's Mini Marcos, 
located in
>   Pennsylvania.
> 
>   Hope you all are having a good new year.  We will have some more 
cars on the
>   road this year with Dave Barton and Bob Magnotti nearing 
completion of their
>   rebuilds.  Mine is undergoing the change from 13" wheels to 
16".  Also got a
>   bunch of parts from Garry Diver (Marcos Parts USA) when he 
passed thru
>   northern California on his round trip of the country to deliver 
parts, cars,
>   etc.  Now I've got something to do on these long winter nights...
> 
>   Regards,
> 
>   Don Lattimer (Moderator)
>   #3m5759
>   Willits, CA, USA
> 
> 
> 
> -------------------------------------------------------------------
-----------
>   Yahoo! Groups Links
> 
>     a.. To visit your group on the web, go to:
>     http://groups.yahoo.com/group/MarcosManiacs/
>       
>     b.. To unsubscribe from this group, send an email to:
>     MarcosManiacs-unsubscribe@yahoogroups.com
>       
>     c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms 
of Service.

RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-03 by larry meadows

Garry, 
I  also would like to go to a higher gear in the read end. I have the 3L Volvo 1970 Marcos.
Tnanks for all the help on the partsfrom Rory.
Larry Meadows
#5536


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RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-03 by pauldransfield@iname.com

Hi Larry,
A much more workable solution for the Volvo would be to acquire an overdrive gearbox. They are probably a bit thin on the ground these days but well worth the effort to find one. I secured one many years ago and I think it was the best mod I ever made to my car. If you raise the rear end ratio, you'll also be effecting first gear, which is quite high already when compared to other versions. At the red line, the current ratios allow 40 mph in first, 60 in second, 90 in third and 125 in top. With overdrive, it can theoretically do 150 though the most I've ever done is 135. Performance isn't effected either but engine noise at highway speeds is reduced significantly. Personally, I think you'd regret moving to a taller rear end.
Just my 2 cents worth.
Regards,
Paul Dransfield
3 litre Volvo
Show quoted textHide quoted text
-----Original Message-----
From: larry meadows [mailto:lmeadowsw@...]
Sent: February 2, 2004 9:25 PM
To: MarcosManiacs@yahoogroups.com
Subject: RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

Garry,
I also would like to go to a higher gear in the read end. I have the 3L Volvo 1970 Marcos.
Tnanks for all the help on the partsfrom Rory.
Larry Meadows
#5536

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RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-03 by Garry Diver

Hi Larry,
  Do you have the salisbury rear end or a Capri?
Garry

>From: larry meadows <lmeadowsw@...>
>Reply-To: MarcosManiacs@yahoogroups.com
>To: MarcosManiacs@yahoogroups.com
>Subject: RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
>Date: Mon, 2 Feb 2004 18:25:26 -0800 (PST)
>
>Garry,
>I  also would like to go to a higher gear in the read end. I have the 3L 
>Volvo 1970 Marcos.
>Tnanks for all the help on the partsfrom Rory.
>Larry Meadows
>#5536
>
>
>---------------------------------
>Do you Yahoo!?
>Yahoo! SiteBuilder - Free web site building tool. Try it!

_________________________________________________________________
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RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-03 by Garry Diver

Larry,

Paul's solution makes really good sense. But in any event I will research 
what ratios are readily available and maybe put a selection in my next 
container.

Garry


>From: pauldransfield@...
>Reply-To: MarcosManiacs@yahoogroups.com
>To: MarcosManiacs@yahoogroups.com
>Subject: RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
>Date: Tue, 3 Feb 2004 09:13:46 -0500
>
>Hi Larry,
>
>A much more workable solution for the Volvo would be to acquire an 
>overdrive
>gearbox. They are probably a bit thin on the ground these days but well
>worth the effort to find one. I secured one many years ago and I think it
>was the best mod I ever made to my car. If you raise the rear end ratio,
>you'll also be effecting first gear, which is quite high already when
>compared to other versions. At the red line, the current ratios allow 40 
>mph
>in first, 60 in second, 90 in third and 125 in top. With overdrive, it can
>theoretically do 150 though the most I've ever done is 135. Performance
>isn't effected either but engine noise at highway speeds is reduced
>significantly. Personally, I think you'd regret moving to a taller rear 
>end.
>
>Just my 2 cents worth.
>
>Regards,
>
>Paul Dransfield
>3 litre Volvo
>
>-----Original Message-----
>From: larry meadows [mailto:lmeadowsw@...]
>Sent: February 2, 2004 9:25 PM
>To: MarcosManiacs@yahoogroups.com
>Subject: RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
>
>
>Garry,
>I  also would like to go to a higher gear in the read end. I have the 3L
>Volvo 1970 Marcos.
>Tnanks for all the help on the partsfrom Rory.
>Larry Meadows
>#5536
>
>
>
>   _____
>
>Do you Yahoo!?
>Yahoo! SiteBuilder - Free web site building tool.
><http://us.rd.yahoo.com/evt=21608/*http://webhosting.yahoo.com/ps/sb/> Try
>it!
>
>   _____
>
>Yahoo! Groups Links
>
>
>*	To visit your group on the web, go to:
>http://groups.yahoo.com/group/MarcosManiacs/
><http://groups.yahoo.com/group/MarcosManiacs/>
>
>
>*	To unsubscribe from this group, send an email to:
>MarcosManiacs-unsubscribe@yahoogroups.com
><mailto:MarcosManiacs-unsubscribe@yahoogroups.com?subject=Unsubscribe>
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RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-03 by larry meadows

Garry and Paul,
 
Thanks for the information. I just received a M410 with overdrive so I guess I wont change the rear ratio.
 Larry
#5536


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Re: RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-03 by patemery@sympatico.ca

Larry!

The Salisbury unit has a bolted inspection cover as viewed from the back of the car. The internals come out through the back. 
The other type is called Banjo. There is no cover in the back. The internals are bolted as a complete assembly and come out as a unit towards the front of the car.
Regards,
Pat
Show quoted textHide quoted text
> 
> From: larry meadows <lmeadowsw@...>
> Date: 2004/02/03 Tue PM 06:10:09 EST
> To: MarcosManiacs@yahoogroups.com
> Subject: RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
> 
> Garry,
>  
> I think it is a salisbury but don't know how to identify what it is.
> Larry
> 
> 
> ---------------------------------
> Do you Yahoo!?
> Yahoo! SiteBuilder - Free web site building tool. Try it!
>

RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-04 by Garry Diver

Larry,

Does it have a remoeable banjo or is the CWP installed from the rear?

Garry


>From: larry meadows <lmeadowsw@...>
>Reply-To: MarcosManiacs@yahoogroups.com
>To: MarcosManiacs@yahoogroups.com
>Subject: RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
>Date: Tue, 3 Feb 2004 15:10:09 -0800 (PST)
>
>Garry,
>
>I think it is a salisbury but don't know how to identify what it is.
>Larry
>
>
>---------------------------------
>Do you Yahoo!?
>Yahoo! SiteBuilder - Free web site building tool. Try it!

_________________________________________________________________
Scope out the new MSN Plus Internet Software \ufffd optimizes dial-up to the max! 
   http://join.msn.com/?pgmarket=en-us&page=byoa/plus&ST=1

RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-04 by pauldransfield@iname.com

Well, well, well Larry. That's great news. There was I, figuring you'd have to scour the country looking for one. Depending on how long it's been sitting around and the condition it's in, it would probably be worth while having it reconditioned before installation. In my case, I had to have the gearbox bearings replaced 6 months after installation and then last year I had to have the overdrive bearings replaced. It would have saved a lot of effort and cost if I done that up front.
In order to install the M410, you'll have to shorten the prop shaft by around 30 cm and come up with a modified rear mount. The Marcos modified top plate and gear change extension will also need to be transferred. I'd also suggest you get your hands on a Volvo 264 gear stick which has the overdrive switch in the top. The trick is to cut the tops off both sticks and weld the top of the 264 stick to the bottom of the 164 stick. It's a bit tricky getting the wiring up the 164 stick because you'll have to notch the rubber bushes inside and drill a hole in the top but it works, looks great and you wouldn't have to have a separate overdrive switch on the dash, which is how the 164 accommodated it. The effort will be repaid in spades and you'll wonder how you ever managed without it.
Regards,
Paul Dransfield
3 litre Volvo
Show quoted textHide quoted text
-----Original Message-----
From: larry meadows [mailto:lmeadowsw@...]
Sent: February 3, 2004 6:07 PM
To: MarcosManiacs@yahoogroups.com
Subject: RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

Garry and Paul,
Thanks for the information. I just received a M410 with overdrive so I guess I wont change the rear ratio.
Larry
#5536

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RE: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-04 by larry meadows

Paul,
 
I did seach the U.S. for over a year and only found one M410, but they thought it was GOLD, so I opted to go to Rory at Heritage in England and he supplied me with th complete set up. After reading all the mods you mentioned, I am sure gratified that I didn't find anything in  the U.S. Thanks for the heads up on the bearings. Will take care of that strait away.
Regards 
Larry
#5536



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Re: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-04 by Don Lattimer

Nope, two ways. Check out this link:
Also it becomes important when balancing. Most tire shops balance with the center hole. Original Marcos alloys don't have a machined center hole so the balance is almost useless. You have to have them balanced with a lug type balancer. Most shops are just too lazy, don't know, or don't think YOU know.
A good starting point to check is if you have tapered lug nuts (most likely lug-centric). The taper centers the wheel on the studs. Here's another explanation:
Don't know any governing criteria. Up to the mfg. I guess.
Don Lattimer
#3m5759
Show quoted textHide quoted text
----- Original Message -----
Sent: Wednesday, February 04, 2004 3:58 AM
Subject: Re: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

Don!

I was under the impression (false maybe)that the proper way to fit wheels to a car was to have the wheel rest on the center boss of the axle or hub, and that the bolts/studs should not carry the weight of the car but rather serve only to attach the wheel to the hub or axle. That is why the center hole diameter of the wheel is of crucial importance because it has to match the diameter of the boss on which it will rest. If indeed there are two (2) ways to mount bolted wheels, what is the governing criteria in selecting the proper method? Thanks,
Pat
>
> From: "Don Lattimer"
> Date: 2004/02/02 Mon PM 06:08:46 EST
> To: MarcosManiacs@yahoogroups.com
> Subject: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
>
>

Yahoo! Groups Links

Donny,

Remember that the TR7/8 alxes are hub-centric, not lug-centric.
Make sure the Marcos alloys fit proper.

Don
#3m5759


--- In MarcosManiacs@yahoogroups.com, "Donny Lang"
wrote:
> Pat,
> I'm also changing to a taller rear gear, but gave up trying to
find one for my my original axle. Since I am re-powering with a
Triumph TR-8 3.5 engine and related M77 5-speed, I am also going to
use the TR-8 rear axle. It has a 3.08:1 ratio and the same 3.75" lug
pattern as the Marcos, but it is almost 2" wider track. I think I
can still use it with stock Marcos alloys as far as fitting the rear
fender openings (I understand all the 1980's Marcos cars were a
similar wider track). All that is needed is to cut off the Triumph
locating/mounting brackets off the housing and weld on the ones for
the Marcos. I may use my originals, or I may have new ones
fabricated.
> The T-5 gearbox is an excellent choice (I am using one in a TVR
project). Don L. said a Essex V-4 bellhousing may work. My Marcos is
a a '69/'70 (steel chassis) with a Ford V-4. I am removing the
driveline (though I haven't gotten that far yet!), but I don't know
if the T-5 will bolt up where my 4-speed currently is. I will look
to see if it may accept a T-5. Either way, both the V-4, 4-speed,
and bellhousing are available.
> I hope this helps! - Donny Lang
> ----- Original Message -----
> From: patemery@s...
> To: MarcosManiacs@yahoogroups.com
> Sent: Monday, February 02, 2004 7:23 AM
> Subject: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
>
>
> Dear Don!
> I am looking for higher gears to improve highway cruising. The
existing unit is a Salisbury with 3.58:1 gear ratio. I need 3.0:1.
Is the differential the same as 6 cylinder Ford Falcon and Mustang?
If not, where can I get the gears? Has anyone ever done this
modification? I am currently looking for 15" x 7" wheels to replace
the Minilites (13 x 8 and 13 x 10) for which I cannot get tires
anymore. I have already purchased P205R50-15 for the front and
P225R50-15 for the back. The front wheels will do with 0.197"
negative offset while the back require 2.195" negative. I am
expecting some information from Minilite Wheels in the U.K. I am
prepared to make my own wheels if need be.
> The next improvement will be to either replace the second gear
ratio of 2.214:1 with 1.950:1 or fit a modern T5 5 Speed. Do you
know where I can find the gear? Will a T5 fit the existing bolt
pattern?
> Best Regards, Pat Emery 5365
>
>; >
> > From: "Don Lattimer"
> > Date: 2004/01/31 Sat PM 11:31:47 EST
> > To: > > Subject: [MarcosManiacs] Car of the Month
> >
> >
>
>
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/MarcosManiacs/
>
> b.. To unsubscribe from this group, send an email to:
> MarcosManiacs-unsubscribe@yahoogroups.com
> ;
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of Service.
>
>
>
>
> -------------------------------------------------------------------
-----------
>
>
> ; February's "car of the month" is Andy Seward's Mini Marcos,
located in
> Pennsylvania.
>
> ; Hope you all are having a good new year. We will have some more
cars on the
> road this year with Dave Barton and Bob Magnotti nearing
completion of their
> rebuilds. Mine is undergoing the change from 13" wheels to
16". Also got a
> bunch of parts from Garry Diver (Marcos Parts USA) when he
passed thru
> northern California on his round trip of the country to deliver
parts, cars,
> etc. Now I've got something to do on these long winter nights...
>
> Regards,
>
> Don Lattimer (Moderator)
> #3m5759
> Willits, CA, USA
>
>
>
> -------------------------------------------------------------------
-----------
> Yahoo! Groups Links
>
> a.. To visit your group on the web, go to:
> http://groups.yahoo.com/group/MarcosManiacs/
>
> b.. To unsubscribe from this group, send an email to:
> MarcosManiacs-unsubscribe@yahoogroups.com
> ;
> c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms
of Service.


Yahoo! Groups Links

Re: Re: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6

2004-02-05 by patemery@sympatico.ca

Don!
Thank you for the information. It's just what I needed.
Pat
Show quoted textHide quoted text
> 
> From: "Don Lattimer" <donlattimer@...>
> Date: 2004/02/04 Wed PM 03:39:18 EST
> To: <MarcosManiacs@yahoogroups.com>
> Subject: Re: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
> 
> Nope, two ways.  Check out this link:
> 
> http://www.mtdealer.com/ph_hubvslug_2003.cfm
> 
> Also it becomes important when balancing.  Most tire shops balance with the center hole.  Original Marcos alloys don't have a machined center hole so the balance is almost useless.  You have to have them balanced with a lug type balancer.  Most shops are just too lazy, don't know, or don't think YOU know.
> 
> A good starting point to check is if you have tapered lug nuts (most likely lug-centric).  The taper centers the wheel on the studs.  Here's another explanation:
> 
> http://www.leadfreewheels.org/101.shtml
> 
> Don't know any governing criteria.  Up to the mfg. I guess.
> 
> Don Lattimer
> #3m5759
> 
> 
> 
> 
> 
>   ----- Original Message ----- 
>   From: patemery@... 
>   To: MarcosManiacs@yahoogroups.com ; MarcosManiacs@yahoogroups.com 
>   Sent: Wednesday, February 04, 2004 3:58 AM
>   Subject: Re: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
> 
> 
>   Don!
> 
>   I was under the impression (false maybe)that the proper way to fit wheels to a car was to have the wheel rest on the center boss of the axle or hub, and that the bolts/studs should not carry the weight of the car but rather serve only to attach the wheel to the hub or axle. That is why the center hole diameter of the wheel is of crucial importance because it has to match the diameter of the boss on which it will rest. If indeed there are two (2) ways to mount bolted wheels, what is the governing criteria in selecting the proper method? Thanks,
>   Pat
>   > 
>   > From: "Don Lattimer" <donlattimer@...>
>   > Date: 2004/02/02 Mon PM 06:08:46 EST
>   > To: MarcosManiacs@yahoogroups.com
>   > Subject: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
>   > 
>   > 
> 
> 
> ------------------------------------------------------------------------------
>   Yahoo! Groups Links
> 
>     a.. To visit your group on the web, go to:
>     http://groups.yahoo.com/group/MarcosManiacs/
>       
>     b.. To unsubscribe from this group, send an email to:
>     MarcosManiacs-unsubscribe@yahoogroups.com
>       
>     c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. 
> 
> 
> 
> 
> ------------------------------------------------------------------------------
> 
> 
>   Donny,
> 
>   Remember that the TR7/8 alxes are hub-centric, not lug-centric.  
>   Make sure the Marcos alloys fit proper.
> 
>   Don
>   #3m5759
> 
> 
>   --- In MarcosManiacs@yahoogroups.com, "Donny Lang" <indigo@t...> 
>   wrote:
>   > Pat, 
>   > I'm also changing to a taller rear gear, but gave up trying to 
>   find one for my my original axle. Since I am re-powering with a 
>   Triumph TR-8 3.5 engine and related M77 5-speed, I am also going to 
>   use the TR-8 rear axle. It has a 3.08:1 ratio and the same 3.75" lug 
>   pattern as the Marcos, but it is almost 2" wider track. I think I 
>   can still use it with stock Marcos alloys as far as fitting the rear 
>   fender openings (I understand all the 1980's Marcos cars were a 
>   similar wider track). All that is needed is to cut off the Triumph 
>   locating/mounting brackets off the housing and weld on the ones for 
>   the Marcos. I may use my originals, or I may have new ones 
>   fabricated.
>   > The T-5 gearbox is an excellent choice (I am using one in a TVR 
>   project). Don L. said a Essex V-4 bellhousing may work. My Marcos is 
>   a  a '69/'70 (steel chassis) with a Ford V-4. I am removing the 
>   driveline (though I haven't gotten that far yet!), but I don't know 
>   if the T-5 will bolt up where my 4-speed currently is. I will look 
>   to see if it may accept a T-5. Either way, both the V-4, 4-speed, 
>   and bellhousing are available.  
>   > I hope this helps! - Donny Lang
>   >   ----- Original Message ----- 
>   >   From: patemery@s... 
>   >   To: MarcosManiacs@yahoogroups.com 
>   >   Sent: Monday, February 02, 2004 7:23 AM
>   >   Subject: [MarcosManiacs] Re: Differential gears 1969 Marcos 3L V6
>   > 
>   > 
>   >   Dear Don!
>   >   I am looking for higher gears to improve highway cruising. The 
>   existing unit is a Salisbury with 3.58:1 gear ratio. I need 3.0:1. 
>   Is the differential the same as 6 cylinder Ford Falcon and Mustang? 
>   If not, where can I get the gears? Has anyone ever done this 
>   modification? I am currently looking for 15" x 7" wheels to replace 
>   the Minilites (13 x 8 and 13 x 10) for which I cannot get tires 
>   anymore. I have already purchased P205R50-15 for the front and 
>   P225R50-15 for the back. The front wheels will do with 0.197" 
>   negative offset while the back require 2.195" negative. I am 
>   expecting some information from Minilite Wheels in the U.K. I am 
>   prepared to make my own wheels if need be. 
>   >   The next improvement will be to either replace the second gear 
>   ratio of 2.214:1 with 1.950:1 or fit a modern T5 5 Speed. Do you 
>   know where I can find the gear? Will a T5 fit the existing bolt 
>   pattern?
>   >   Best Regards, Pat Emery 5365
>   > 
>   >   > 
>   >   > From: "Don Lattimer" <donlattimer@p...>
>   >   > Date: 2004/01/31 Sat PM 11:31:47 EST
>   >   > To: <MarcosManiacs@yahoogroups.com>
>   >   > Subject: [MarcosManiacs] Car of the Month
>   >   > 
>   >   > 
>   > 
>   > 
>   > -------------------------------------------------------------------
>   -----------
>   >   Yahoo! Groups Links
>   > 
>   >     a.. To visit your group on the web, go to:
>   >     http://groups.yahoo.com/group/MarcosManiacs/
>   >       
>   >     b.. To unsubscribe from this group, send an email to:
>   >     MarcosManiacs-unsubscribe@yahoogroups.com
>   >       
>   >     c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms 
>   of Service. 
>   > 
>   > 
>   > 
>   > 
>   > -------------------------------------------------------------------
>   -----------
>   > 
>   > 
>   >   February's "car of the month" is Andy Seward's Mini Marcos, 
>   located in
>   >   Pennsylvania.
>   > 
>   >   Hope you all are having a good new year.  We will have some more 
>   cars on the
>   >   road this year with Dave Barton and Bob Magnotti nearing 
>   completion of their
>   >   rebuilds.  Mine is undergoing the change from 13" wheels to 
>   16".  Also got a
>   >   bunch of parts from Garry Diver (Marcos Parts USA) when he 
>   passed thru
>   >   northern California on his round trip of the country to deliver 
>   parts, cars,
>   >   etc.  Now I've got something to do on these long winter nights...
>   > 
>   >   Regards,
>   > 
>   >   Don Lattimer (Moderator)
>   >   #3m5759
>   >   Willits, CA, USA
>   > 
>   > 
>   > 
>   > -------------------------------------------------------------------
>   -----------
>   >   Yahoo! Groups Links
>   > 
>   >     a.. To visit your group on the web, go to:
>   >     http://groups.yahoo.com/group/MarcosManiacs/
>   >       
>   >     b.. To unsubscribe from this group, send an email to:
>   >     MarcosManiacs-unsubscribe@yahoogroups.com
>   >       
>   >     c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms 
>   of Service.
> 
> 
> 
> ------------------------------------------------------------------------------
>   Yahoo! Groups Links
> 
>     a.. To visit your group on the web, go to:
>     http://groups.yahoo.com/group/MarcosManiacs/
>       
>     b.. To unsubscribe from this group, send an email to:
>     MarcosManiacs-unsubscribe@yahoogroups.com
>       
>     c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. 
> 
> 
>

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