RB20DET help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Dirtdiver · 04-30-2010, 07:00 AM

So I got the RB running but now its making a weird random clunking noise at idle... I cannot figure out what it is but heres what im running. Stock RB20DET, N60 Maxima MAF (J60 MAF on way soon...), Seperate Temp gauge (temp sensor for harness is chillin exposed to the air), FMIC with 2.5 piping. It will idle and sometimes it will make a quite lound clunk, sounds like a metal on metal sound almost in the lower part of engine. It does not do it under throttle? So if anyone had any idea or suggestions it would be great.

Lozer · 05-04-2010, 12:20 AM

vacume leak. chcekc your connections.when it does the clunking are the rpms droping down to nothing?

f you need a j60 with pig tail i have one ill let go for 80 shipped.

04-30-2010, 07:00 AM	#1
Dirtdiver Join Date: Nov 2009 Location: Clermont Florida Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	RB20DET help So I got the RB running but now its making a weird random clunking noise at idle... I cannot figure out what it is but heres what im running. Stock RB20DET, N60 Maxima MAF (J60 MAF on way soon...), Seperate Temp gauge (temp sensor for harness is chillin exposed to the air), FMIC with 2.5 piping. It will idle and sometimes it will make a quite lound clunk, sounds like a metal on metal sound almost in the lower part of engine. It does not do it under throttle? So if anyone had any idea or suggestions it would be great.

05-04-2010, 12:20 AM	#2
Lozer Zilvia Member Join Date: Feb 2009 Location: Nor cal Posts: 197 Trader Rating: (2) Feedback Score: 2 reviews	vacume leak. chcekc your connections.when it does the clunking are the rpms droping down to nothing? f you need a j60 with pig tail i have one ill let go for 80 shipped.