Re: H hesitation to shut down

Posted by Allan in NE on August 25, 2004 at 12:43:51 from (148.63.132.164):

In Reply to: Re: H hesitation to shut down posted by Novel Idea Guy on August 25, 2004 at 12:36:47:

NIG,

It isn't that the combustion temps are higher, it is that the straight pipe gives the cooler outside air more of a straight shot into that combustion area where an exhaust valve may be hanging open.

Red hot valve with no support hit by a blast of cold air under certain conditions equals a warped valve. Rare, but it could happen.

Is this the part you meant?

Allan

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