Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Cylinder 3 low compression. Bad valve seal?

Javi802 · 01-23-2015, 04:29 PM

The pouring of oil in the cylinder is time effective. If doing that ups your compression, you have a bad ring. If it doesn't change anything, you have a valve issue. Thats when i would leak down test it. To find whether its intake or exhaust.

01-23-2015, 04:29 PM	#1
Javi802 Zilvia Junkie Join Date: Jul 2012 Location: Oklahoma Age: 33 Posts: 472 Trader Rating: (10)	The pouring of oil in the cylinder is time effective. If doing that ups your compression, you have a bad ring. If it doesn't change anything, you have a valve issue. Thats when i would leak down test it. To find whether its intake or exhaust.