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overheating (?) issues |
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gd5052 
AMC Apprentice 
Joined: Jun/16/2011 Location: Illinois Status: Offline Points: 108 |
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 Topic: overheating (?) issuesPosted: Aug/24/2017 at 9:45am |
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060 overbore isn't helping matters
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gd5052
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Joined: Jun/16/2011 Location: Illinois Status: Offline Points: 108 |
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Posted: Aug/24/2017 at 9:44am |
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tdkask
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Joined: Aug/12/2017 Location: Kingsland, GA Status: Offline Points: 8 |
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Posted: Aug/23/2017 at 7:35pm |
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Sorry for the lack of responses or updates.
It is boiling the carb at about 195 or so. I have since blocked off the exhaust crossover and replaced the 3/8" phenolic spacer with a ¾" hard rubber spacer. I've also moved the radiator a little closer to the fan (now 1/2" between them) and relocated the trans cooler. I'm not sure how much difference the spacer has made, as I can now keep my hand on the intake. Carb stays reasonable, and not as hot as intake. Also, temps never reach 190° either. Seems to be resolved. I haven't had a chance to really test though. I just got it all back together today and need a thermostat gasket before driving. |
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mmaher94087
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Joined: Apr/01/2008 Location: Arizona Status: Offline Points: 1691 |
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Posted: Aug/23/2017 at 6:56pm |
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Any update?
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Mike
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farna
Supporter of TheAMCForum 
Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19676 |
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Posted: Aug/13/2017 at 3:31pm |
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You can use a piece of thin sheet metal to block off the exhaust crossmember -- one on each side.
Could be non-vented fuel cap... |
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Frank Swygert
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mmaher94087
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Joined: Apr/01/2008 Location: Arizona Status: Offline Points: 1691 |
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Posted: Aug/13/2017 at 12:30pm |
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Run the engine with the fuel cap open. This sounds strangely like a non-vented cap problem.
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Mike
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scott
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Joined: Jul/10/2007 Location: Wildwood Pa. Status: Offline Points: 3501 |
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Posted: Aug/13/2017 at 12:07pm |
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How hot is it getting when it overheats?? Pegging the gauge??
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tdkask
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Joined: Aug/12/2017 Location: Kingsland, GA Status: Offline Points: 8 |
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Posted: Aug/13/2017 at 11:20am |
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scott
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Joined: Jul/10/2007 Location: Wildwood Pa. Status: Offline Points: 3501 |
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Posted: Aug/13/2017 at 10:47am |
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I see you are running the stock style fuel filter with a return line. Try plugging the return line, or replacing the filter with one that does not have a return line.
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tdkask
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Joined: Aug/12/2017 Location: Kingsland, GA Status: Offline Points: 8 |
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Posted: Aug/13/2017 at 8:29am |
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An air gap isn't in the budget at this point. Also, there's only a couple weeks of cold-ish weather here in S. GA. However, I don't have the ability to weld aluminum. I wonder if that steel putty stuff would work? Or maybe some kind of block off between heads and intake?
I'll be getting a much taller spacer in today and addressing the cooling. Got to get some improvement here. I'm missing out on all the fun. |
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scott wrote: