Exhaust valve hit piston
#17
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This is a cylinder I had reconditioned with fresh Nikasil and diamond honed. Hard to see the marks but they are there.
FYI the factory actually used Goetze rings .
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![](https://cimg1.ibsrv.net/gimg/rennlist.com-vbulletin/768x1024/12212fc7_203a_4650_b1cc_793ea9059a28_1_105_c_ed953cb87114c38270865476e4e73ce94aedb854.jpeg)
The rings need to be measured and cut using a special machine which will give a precise cut of the ring and gap needed. The gap can vary based on application.
Last edited by cobalt; 03-22-2024 at 08:34 AM.
#18
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Yeah, but I don’t see how honing, rings, all that has much to do with the valve clearance, unless you’ll are suggesting that these little things are clues that add up to questionable results.
#19
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Usually while in there,.. inspect everything.
Intake blocks, Fuel lines, wires and Cap, electrical connections. Make sure your mounting points are not stripped.
Intake blocks, Fuel lines, wires and Cap, electrical connections. Make sure your mounting points are not stripped.
Last edited by Scott Dunavant; 03-29-2024 at 02:46 PM.
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cobalt (03-25-2024)
#20
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Yes my point is they are overlooking the most basic steps and if they overlooked something as important and simple as honing the cylinders what other corners were cut that could have lead to the damage? If they try to drop this additional bill on you I wouldn't be happy.
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Mike Murphy (03-26-2024)