sr20det manifold/exhaust leak help - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

iAMprojekt · 03-30-2008, 09:13 AM

well ive got an exhaust leak and its coming from right below the manifold as illustrated in the pic below.... but when i put a jack up under the downpipe to see if that stopped the leak the car started idleing higher. i raised the jack 3 pumps and with each pump the idle increased.

help.... is this something like a vacuum leak? and how do i fix this etc....

thanks in advance

MADE · 03-30-2008, 11:10 AM

Pull it apart and you will probably find the gasket is shot. When you get it apart might as well inspect for other gaskets and problems.

iAMprojekt · 03-30-2008, 11:52 AM

Quote:

Originally Posted by MADE

Pull it apart and you will probably find the gasket is shot. When you get it apart might as well inspect for other gaskets and problems.

yea, i thought about doing that... but working around that area is a pain....

would i start from the bottom (unbolting DP and working my way up.....)

or start from the top? (move I/C piping out the way, etc...)

MADE · 03-30-2008, 12:03 PM

Go to Zeroyon.com or anyother site that has a FSM you can download and it explains it all. Trust me that spot is not hard to work with compared to other cars. Plenty of room just ask Z owners

So easy a cave man can do it.

iAMprojekt · 03-30-2008, 10:51 PM

Quote:

Originally Posted by MADE

Go to Zeroyon.com or anyother site that has a FSM you can download and it explains it all. Trust me that spot is not hard to work with compared to other cars. Plenty of room just ask Z owners

So easy a cave man can do it.

haha thanks. im going to tackle it tomorrow. its leaking pretty badly...

IRN · 03-31-2008, 03:45 AM

i had that leak on me a few times. do it once right and get new locking tabs under the nuts from nissan. its not fun ripping it out 3 weeks later for the same exact problem. start with disconnecting o2, oil + coolant lines, hot pipe, intake filter tube, and the rest of the easy stuff. take off the downpipe from the elbow and then the manifold and pull the whole thing (mani,turbo,elbow,w/ lines still on turbo) and take off the 2 nuts on the brake master and slide it to the side for room.

03-30-2008, 09:13 AM	#1
iAMprojekt Leaky Injector Join Date: Nov 2006 Location: Virginia Beach Posts: 103 Trader Rating: (0) Feedback Score: 0 reviews	sr20det manifold/exhaust leak help well ive got an exhaust leak and its coming from right below the manifold as illustrated in the pic below.... but when i put a jack up under the downpipe to see if that stopped the leak the car started idleing higher. i raised the jack 3 pumps and with each pump the idle increased. help.... is this something like a vacuum leak? and how do i fix this etc.... thanks in advance

03-31-2008, 03:45 AM	#6
IRN Leaky Injector Join Date: Nov 2007 Location: land of the refs Age: 33 Posts: 130 Trader Rating: (0) Feedback Score: 0 reviews	i had that leak on me a few times. do it once right and get new locking tabs under the nuts from nissan. its not fun ripping it out 3 weeks later for the same exact problem. start with disconnecting o2, oil + coolant lines, hot pipe, intake filter tube, and the rest of the easy stuff. take off the downpipe from the elbow and then the manifold and pull the whole thing (mani,turbo,elbow,w/ lines still on turbo) and take off the 2 nuts on the brake master and slide it to the side for room. __________________

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03-30-2008, 11:10 AM	#2
MADE Zilvia Addict Join Date: Jan 2006 Location: Norf Norf Posts: 974 Trader Rating: (1) Feedback Score: 1 reviews	Pull it apart and you will probably find the gasket is shot. When you get it apart might as well inspect for other gaskets and problems.

03-30-2008, 12:03 PM	#4
MADE Zilvia Addict Join Date: Jan 2006 Location: Norf Norf Posts: 974 Trader Rating: (1) Feedback Score: 1 reviews	Go to Zeroyon.com or anyother site that has a FSM you can download and it explains it all. Trust me that spot is not hard to work with compared to other cars. Plenty of room just ask Z owners So easy a cave man can do it.