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1966 Simplicity BroadMoor won't stay running


smalljob

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On 7/14/2020 at 8:13 AM, Talntedmrgreen said:

What is amazing, is that most still run fine in this configuration, and have for 5 decades.  Then, some hot day in the yard, they won't stay running and the issue persists. 

When I wrote original configuration, I was using that term loosely and was talking about the picture he posted. I doubt that the ORIGINAL muffler looked like that. Probably more like this which may have been OK.

small_muffler.jpg

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  • 2 years later...

I've heard of valve stems that warp when they get hot. Had the problem years ago. Usually a valve will stick open and lose some compression. One clue is it will pop thru the carb or the muffler.  Maybe this is a problem.  Good luck!

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