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Old 06-25-2015, 09:37 PM   #21
spldart
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Exclamation Sorry.....


Even though you don't have a hole in the piston that is still unsafe territory for
rebuild.

Needs:
New piston
New rings
A new gasket
New single valve
New keepers "just to be sure"
New spring "just to be sure"

Fresh hone on cylinder
The labor on the top end job in general

Me?! I'm still researching chinese alternative for engine parts for gz owners. Just emailed someone on a cyl bor kit tonight
My malady is low compression. Still running but yeah.



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Last edited by spldart; 06-25-2015 at 09:52 PM. Reason: "edit" NEW means the rings and gasket. The rest can be good used parts.
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Old 06-25-2015, 09:40 PM   #22
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Thanks again for sharing all the pictures. We all learn from this stuff all forensic like
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Old 06-25-2015, 09:46 PM   #23
hotshot38
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The Spring looks ok...but the valve guide is pooched also




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Old 06-25-2015, 09:55 PM   #24
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I let my fav old machine shop press in valve guides. So ... yeah...
That's another tab on the bill.

I'm thinking your right... This is a boneyard situation

Last edited by spldart; 06-25-2015 at 10:00 PM. Reason: Don't trust the spring. If you build... Take a donor spring.
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Old 06-25-2015, 10:09 PM   #25
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I'm still staring at that valve seat....
It doesn't look like the valve was striking it properly for a while before engine failure.....
I dunno..
Just saying..



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