Compression Test Results? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Idratherbsidewayz · 03-25-2005, 10:52 PM

Question for you guys:

I just compression tested my SR20DET (It was pulled out of my old totalled 240), here were my results.

Cylinder 1 148
Cylinder 2 110
Cylinder 3 130
Cylinder 4 145

When I put oil in before doing it they all read damn close to 150. Is my engine blown? Do I need a rebuild?

Is it likely that it was like this before the accident?

Would it be dangerous (for the engine) for me to run it like this?

eyustfu · 03-25-2005, 11:42 PM

probably just needs new rings, you can drive on it sure.. but probably just going to do more damage

*fliprayzin240sx* · 03-26-2005, 02:37 PM

get a capfull of oil, drop oil into each cylinder...then redo your compression check.

Idratherbsidewayz · 03-26-2005, 06:13 PM

Quote:

Originally Posted by fliprayzin240sx

get a capfull of oil, drop oil into each cylinder...then redo your compression check.

I did, it was 150 all around...

usctom · 03-26-2005, 07:49 PM

defiantly the piston rings. if u put oil in it and it didnt change then it be your valve seals

03-25-2005, 10:52 PM	#1
Idratherbsidewayz Join Date: Nov 2003 Location: Calgary, AB Posts: 23 Trader Rating: (0) Feedback Score: 0 reviews	Compression Test Results? Question for you guys: I just compression tested my SR20DET (It was pulled out of my old totalled 240), here were my results. Cylinder 1 148 Cylinder 2 110 Cylinder 3 130 Cylinder 4 145 When I put oil in before doing it they all read damn close to 150. Is my engine blown? Do I need a rebuild? Is it likely that it was like this before the accident? Would it be dangerous (for the engine) for me to run it like this?

03-26-2005, 02:37 PM	#3
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	get a capfull of oil, drop oil into each cylinder...then redo your compression check. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

03-25-2005, 11:42 PM	#2
eyustfu Zilvia Addict Join Date: Feb 2003 Location: Dallas, Tx Posts: 781 Trader Rating: (2) Feedback Score: 2 reviews	probably just needs new rings, you can drive on it sure.. but probably just going to do more damage

03-26-2005, 07:49 PM	#5
usctom Leaky Injector Join Date: Jun 2003 Location: ny Posts: 145 Trader Rating: (0) Feedback Score: 0 reviews	defiantly the piston rings. if u put oil in it and it didnt change then it be your valve seals