S15 Silvia with a bad rattle - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nasx · 06-10-2009, 09:23 PM

I just took delivery of a black 2000 S15 Qs (SR20DE) with full oem aero kit.
Darn it is a sweet looking car. Never saw one in person before.

But it has issues.
When cold it rattles VERY loudly at startup then the rattling all but goes away. When operating temp is reached, the rattling returns intermittently but not as loud as at startup. When revved, the noises seem to diminish unlike spun bearings that get louder when revved.

The stock oil pressure gauge is all over the place (jumpy needle movements and all) reading from normal at startup to zero when warmed up en then back up again, so I'm not sure it's working correctly.

My guess is thus the timing chain and/or tensioner, do the symptoms sound like the timing chain and/or tensioner to you, or should I still be thinking bearings?

If it's the tensioner, can the tensioner be changed without pulling the motor?
What about oil pump replacement can it also be done without pulling the motor? Thinking I might want to replace it just to be safe.

06-10-2009, 09:23 PM	#1
nasx Leaky Injector Join Date: Jun 2007 Location: FL Posts: 103 Trader Rating: (0) Feedback Score: 0 reviews	S15 Silvia with a bad rattle I just took delivery of a black 2000 S15 Qs (SR20DE) with full oem aero kit. Darn it is a sweet looking car. Never saw one in person before. But it has issues. When cold it rattles VERY loudly at startup then the rattling all but goes away. When operating temp is reached, the rattling returns intermittently but not as loud as at startup. When revved, the noises seem to diminish unlike spun bearings that get louder when revved. The stock oil pressure gauge is all over the place (jumpy needle movements and all) reading from normal at startup to zero when warmed up en then back up again, so I'm not sure it's working correctly. My guess is thus the timing chain and/or tensioner, do the symptoms sound like the timing chain and/or tensioner to you, or should I still be thinking bearings? If it's the tensioner, can the tensioner be changed without pulling the motor? What about oil pump replacement can it also be done without pulling the motor? Thinking I might want to replace it just to be safe.