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Old 01-27-2021, 12:12 AM   #18
Tinker
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Join Date: May 2010
Location: MN
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Default Re: Runs great until it heats up

Quote:
Originally Posted by deuce lover View Post
I think its Mystery Marvel Oil and maybe he pours it in the air horn.Never heard of that remedy.Sounds like your setup is pretty fresh so the shouldn't be necessary.

Lead was used for L head motor upper cylinder lucubration. Guess it's a thing, as they sell lead additive now. Which I would never buy.

On a new rebuilt motor like mine the tolerances are very tight and every amount of lubrication in the valves/guides help on a L head motor.

Just pour mmo down the carb at idle till it smokes out. Then drive the crap out of it. Rinse, repeat.

Maybe I'm wrong, but sticky valves do happen. As I mentioned it could be a lot of things. Like the coil and condenser.... maybe the Mallory is being weird? Don't know, I run points.

Last edited by Tinker; 01-27-2021 at 01:33 AM.
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