[Fot] My Pistons "Pop Up" (what should I do)

Kas Kastner kaskas at cox.net
Wed Apr 25 14:42:51 MDT 2012


That is the exact same advice I gave him Mordy.

Never be beaten by equipment


> To: dos_gusanos at msn.com; fot at autox.team.net
> From: gasket.works at gte.net
> Date: Wed, 25 Apr 2012 15:08:04 +0000
> Subject: Re: [Fot] My Pistons "Pop Up" (what should I do)
>
> A thicker gasket would be easiest.
>
> However, be mindful that combustion pressure is obviously greatest near TDC.
@ TDC the top compression ring will now have less cylinder space above it.
Somewhere I recall that the top ring should be about .100" below deck to
mitigate pressure blow-by. If there are other opinions I'm all ears. Not an
"engineer" (love this word and so appropriate for this topic)
> M
> ------Original Message------
> From: Henry Morrison
> Sender: fot-bounces at autox.team.net
> To: FOT
> Subject: [Fot] My Pistons "Pop Up" (what should I do)
> Sent: Apr 24, 2012 8:41 PM
>
> Hello engine rebuilding enthusiasts. I have assembled the lower end of my
> Brand X motor and through all my work and measuring, have created a
situation
> where the Pistons "pop up" about .030" above the deck. Can I simply deal
with
> this by purchasing a .060" thick solid head Gasket? giving a .025" to .030"
> clearance between the top of tht piston and the head?
>
> I'd rather not machine down the pistons but will if that is what it is
going
> to take.
>
> Cheers, Henry Morrison, New Mexico
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