[SEL] Compression question

[Ron Gerlach]

Russel

I can't answer your question but I am curious if anybody has ever tried filling pits with an epoxy like JB Weld.  A little honing afterward should take all the epoxy out except what is nestled nicely in the pits.  It should be able to take the heat.  The rings cannot wear the epoxy past the level of the surrounding cast iron so it should not be worn away during use.  It should improve the compression.

I have a Stover with a similar problem and I was considering trying this.

RonG
Orange Ca

> From: russell at ncable.com.au
> Date: Tue, 8 May 2012 07:47:40 +1000
> To: sel at lists.stationary-engine.com
> Subject: [SEL] Compression question
> 
> Quite some time back I bought two very average looking Hornsby oil engines; a 2 and 3hp types. They came with enough bits to make one complete engine etc ................... Well I have hunted extra bits now and have enough to basically complete both. One will is going to a good mate whom is doing all the work (he has spare time) and the 2hp I will keep. Although not at the point yet of putting the piston back in and seeing how much compression it actually has, (my 2hp) I noticed there was a very small amount of pitting at the top of the bore. Now it's not much and only time will tell if it's even going to be a problem. How ever if it is a problem; I was thinking instead of boring or sleeving. Could I just cut another ring groove further back along the piston; remove the top ring and put in the lower new groove?? This would avoid the pitted area mostly and the majority of rings would be running in a clean bore? Any issues with something like this?
> 
> cheers all. Russell
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