[SEL] Piston slap ????

[Tom Winland]

Got a question for you guys.  I'm working on an engine and it has a knock in it and you only hear it when the engine is coasting down really slow but the slower it gets the louder it gets.  The noise is coming from the cylinder and it has been sleeved so that rules out egg shaped cylinder.  Only thing that I can come up with is piston slap but I've taken a piston and rod out of an identical engine here and it does the same thing but the other engine doesn't make the noise and it's pretty irritating noise and is pretty loud.  You can't hear any loud knocking when the engine is running at a decent speed but only when slowed down to under 100 rpm that the noise starts.  Any ideas or suggestions are appreciated
 
Thanks
Tom Winland
Ohio
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