Quote:
Originally Posted by AnthonyG
Rhythmic puffing from oil Fill neck got worse & heard odd lower end noise but still no smoke from tail pipes. Arrived @ Current decision to check lower end (think it's a cracked oil wipe ring or possible compression ring letting compression get to crankcase on cyl #2) so change rings on bad compression cyl 2, but will give all a good look. Rational is, engine has so few miles on it and only has the compression issue on the #2 cyl so seems that's probably the issue.
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I agree with your solution but, I would have tried to isolate the "odd lower end noise" before pulling it out.
Did the oil pressure drop, at all, after the puffing started? The other thing that I'd check out is the wrist pin and piston.
Can you describe the odd noise?