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bpu699 bpu699 is offline
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Join Date: Apr 2007
Location: wisconsin
Posts: 2,299
Originally Posted by TurboKraft View Post
You have nikasil. 930s only had nikasil cylinders, never alusil.

Of course the pistons may be removed from their cylinders for inspection. What is important when re-using parts is to keep each cylinder+piston+pin assembly together, i.e. do not put piston #2 into cylinder #4. Use new pin circlips when reassembling.
You guys are making my day... so far everything is going my way

Silly question, maybe...

Any point in lapping the valves? Hate to rebuild the heads as reportedly done by po. I have a couple cylinders I have to look at as there is buildup on the exhaust valves...

Would lapping the valves get the leak down better by 3-4 %? Would a 7% leak down get better? It looks like it's carbon buildup...

I assume lapping the valves doesn't damage anything...

Otherwise, can you just rebuild a couple heads, and leave the others?

Trying really hard not to end up with a complete rebuild...
Old 08-08-2017, 06:06 PM
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