sr20det knocking sound - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

nicku · 09-25-2007, 12:50 AM

So my friend helped me rebuilt the engine. And after we put it back, the car started right away. when we rev the engine to 2000 rpm, it starts to get the knocking sound. We bleed the lifters already. but the sound didnt go away. it starts at 2k rpm, and as the rpm goes higher, the sound goes faster. it goes away as soon as we let go the throttle. now my friend who is a mechanic started to think its a sign of detenation. But we dont know what cause that. Or anybody has any other idea?

09-25-2007, 12:50 AM	#1
nicku Zilvia Junkie Join Date: Aug 2007 Location: St. Cloud, MN Age: 40 Posts: 545 Trader Rating: (0) Feedback Score: 0 reviews	sr20det knocking sound So my friend helped me rebuilt the engine. And after we put it back, the car started right away. when we rev the engine to 2000 rpm, it starts to get the knocking sound. We bleed the lifters already. but the sound didnt go away. it starts at 2k rpm, and as the rpm goes higher, the sound goes faster. it goes away as soon as we let go the throttle. now my friend who is a mechanic started to think its a sign of detenation. But we dont know what cause that. Or anybody has any other idea?

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