Marcos Maniacs

I think that I read that the engine actually boils out water when running slow, is that right? 
Regards,
Larry

      From: "Philip Perron pgperron@... [MarcosManiacs]" <MarcosManiacs@yahoogroups.com>
 To: "MarcosManiacs@yahoogroups.com" <marcosmaniacs@yahoogroups.com> 
 Sent: Friday, March 18, 2016 2:59 PM
 Subject: RE: [MarcosManiacs] Re: 1966 Marcos FS on Ebay
   
    FLOW WAS ALWAYS GOOD COLD OR HOT. ALSO LOOKING FOR COMPRESSION BUBBLES. NOT AN ISSUE. ALSO NO OIL,WATER WHITE MILK UNDER THE VALVE COVER, OR MIX IN THE CRANK CASE. LIKE I SAID LOOKED AT EVERYTHING. KEEP THOSE IDEAS COMING. PHIL.
 
To: MarcosManiacs@yahoogroups.com
From: MarcosManiacs@yahoogroups.com
Date: Fri, 18 Mar 2016 18:34:10 +0000
Subject: Re: [MarcosManiacs] Re: 1966 Marcos FS on Ebay

     More thoughts....I am sure that you have checked the water flow with the cap off (when first starting the engine and cold) to see how fast the the water is moving through the expansion tank, to see if there might be a restriction in the return line from the radiator after the engine warms up.If you notice a slower than normal flow, let me know. There is a possible fix. 
Regards,
Larry

      From: "Philip Perron pgperron@... [MarcosManiacs]" <MarcosManiacs@yahoogroups.com>
 To: "MarcosManiacs@yahoogroups.com" <marcosmaniacs@yahoogroups.com> 
 Sent: Thursday, March 17, 2016 2:18 PM
 Subject: RE: [MarcosManiacs] Re: 1966 Marcos FS on Ebay
  
    IT IS A METAL IMPELLAR, OEM VOLVO WATER PUMP, PERHAPS THE ORIGINAL. I HAVE NEVER REPLACED IT. SOLID ON THE SHAFT, NO BROKEN VEINS OR WOBBLY BEARING ISSUES. DID BUY A NEW ONE TO REPLACE IT WHILE IT'S OUT. IM CHANGING OUT EVERYTHING, THAT IS EASY TO GET TO. PHIL.
 
To: MarcosManiacs@yahoogroups.com
From: MarcosManiacs@yahoogroups.com
Date: Wed, 16 Mar 2016 23:58:32 +0000
Subject: Re: [MarcosManiacs] Re: 1966 Marcos FS on Ebay

     Phil,When you had the water pump off, did you check the impeller on the shaft to be sure that it has not or does not come loose on the shaft when it warms up? I had a problem like that many years ago and found that a\the plastic impeller would expand when it got hot and would not move the water through. It was a after market pump as the original one had an iron impeller. it was hard to test on the bench, so i would run it hot, then carefully and quickly drain the water and remove and test the pump. I would place the pump in the hot water and then turn  the shaft and hold the impeller. It took about 30 foot pounds to move it, but that was the problem.
Regards,
Larry

      From: "Philip Perron pgperron@... [MarcosManiacs]" <MarcosManiacs@yahoogroups.com>
 To: "MarcosManiacs@yahoogroups.com" <marcosmaniacs@yahoogroups.com> 
 Sent: Wednesday, March 16, 2016 4:01 PM
 Subject: RE: [MarcosManiacs] Re: 1966 Marcos FS on Ebay
  
    HI. THE CAR ALWAYS RAN ON THE HOT SIDE BUT WAS MANAGABLE. ON THE HIGHWAY FINE, GET INTO A 15 MINUTE SLOW DOWN WOULD RUN HOT, GET HELD UP 30 MINUTES HAD TO SHUT IT OFF BOILING OVER. LET IT COOL THEN GO. GOT TO THE POINT IT COULD ONLY BE RUN IN 60 DEG. WEATHER OR COOLER. MY SPRING, FALL, WINTER CAR. AT THE END IT COULDN'T EVEN GO 10 MILES DOWN THE ROAD, AND OVER HEAT. RADIATOR RE-CORED, ELECTRIC FAN ADDED, T STATS CHANGED,(DIFFERENT TEMPS) NOT AIR BOUND, HEATER CORE BY PASSED. STILL TO NO AVAIL. COMPRESSION GREAT, LEAK TESTED,  TIMING CHANGED AND PLAYED WITH, NO WATER OIL MIX, AND NO STEAM OR WHITE TAIL PIPE. DIDN'T REALLY WANT TO WITH ALL MY OTHER PROJECTS, BUT I PULLED THE HEAD. I WAS HOPING TO FIND A MUDDED UP BLOCKAGE IN THE BLOCK, BUT NO LUCK THERE. DRAINED AND PERFECTLY CLEAN. NO WATER TRACKS BETWEEN THE HEAD AND THE BLOCK EITHER. HEAD GASKET IN GOOD SHAPE, NO SIGNS OF LEAKAGE ANY WHERE. PULLED THE WATER PUMP LOOKING FOR BROKEN VEIN ON THAT OK. I HAD THE HEAD SHAVED, AND MULLING OVER SHAVING THE BLOCK. STRAIGHT EDGE AND FEELERS SHOW IT'S OK.  I HAVE SERVICED MY AND CUSTOMERS VEHICLES FOR 40 YEARS AND I AM BAFFLED. IT HAS ALSO BEEN RUN BY MANY OF LOCAL PRO'S, FRIENDS, FOR ADVICE. WILL BE REASSEMBLING NEXT MONTH FOR THE SUMMER. WILL SEE WHAT HAPPENS. ANY OTHER IDEAS OR OPPINIONS IS WELCOME. THANKS PHIL.
 
To: MarcosManiacs@yahoogroups.com
From: MarcosManiacs@yahoogroups.com
Date: Tue, 15 Mar 2016 17:57:25 +0000
Subject: Re: [MarcosManiacs] Re: 1966 Marcos FS on Ebay

     Phil,By running hot, do you mean that the temperature gage reads 'hot' , or is it boiling over. 
Regards,
Larry

      From: "Philip Perron pgperron@... [MarcosManiacs]" <MarcosManiacs@yahoogroups.com>
 To: "MarcosManiacs@yahoogroups.com" <marcosmaniacs@yahoogroups.com> 
 Sent: Tuesday, March 15, 2016 1:47 PM
 Subject: RE: [MarcosManiacs] Re: 1966 Marcos FS on Ebay
  
    Hi Chris. Ya, it's me, and I still own and drive it all the time. I do have the engine apart to try to figure out why that thing runs so hot all the time. Hoping to finally solve that problem, shaving the block and head flat. I have tried everything else to no avail. 
Phil.
 
To: marcosmaniacs@yahoogroups.com; marcosmaniacs@yahoogroups.com
From: MarcosManiacs@yahoogroups.com
Date: Mon, 14 Mar 2016 21:24:13 +0000
Subject: RE: [MarcosManiacs] Re: 1966 Marcos FS on Ebay

     Phil,
I think you have my first Marcos? Did you buy it in Philadelphia a little over 10 years ago?
Chris

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On Mon, Mar 14, 2016 at 12:33 PM -0700, "Philip Perron pgperron@msn.com [MarcosManiacs]"<MarcosManiacs@yahoogroups.com> wrote:

 
Hi. I saw this Marcos at the Limerock Vintage Fall Festival in 2014. It is virtually a perfect car. I checked it out closely, it is very nice. At the time they were showing it, but not sure they were ready to sell it. They drove it to the track, and I was present when they left, it sounded and ran good. Nice people, an in family car since new, now in the hands of the children, and they don't want it. This is the best I recall from the conversation. Phil 1970 Marcos.
 
To: MarcosManiacs@yahoogroups.com
From: MarcosManiacs@yahoogroups.com
Date: Mon, 14 Mar 2016 10:01:52 -0700
Subject: [MarcosManiacs] Re: 1966 Marcos FS on Ebay

 Was previously for sale in 2012
http://bringatrailer.com/2012/01/27/dads-from-new-1966-marcos-1500gt/

Don