Thread: Lean Cylinder?
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Old 10-01-2010, 09:53 AM   #5
FuJi K
Scooby Guru
Member#: 3687
Join Date: Jan 2001
Chapter/Region: MWSOC
Location: St. Paul, MN
MY99 GF4 JDM 6spd
NF Performance


It could possibly be a cracked ringland that started the mess. The cracked ringland will cause scuffing, later enough scuffing for blowby, then oil, misfires, pre-det, then major piston failure and melting.

You'd have to take the piston out, make sure the rings don't turn so you know where the gap ends are, then inspect the piston to narrow in possible causes.
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