SR20 Exhaust Leak No Boost - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

revsx · 11-15-2012, 12:33 PM

So awhile back I was at a track day and went off track and hit a tire wall head on and then I could hear an exhaust leak, but thought I had scraped a hole in my exhaust. Upon driving around the track I was only building about 3psi of boost and the needle wasn't very steady. When I got the car home above the turbo on the hood it was really hot. After I let it cool down I realized the turbo was loose on 2 out of 4 of the bolts. I haven't gotten the turbo off yet as I need a different wrench to get the line off the back of the turbo or block (They seem equally as stupid.), but after explaining the circumstances what are the chances the manifold/turbo gasket is blown?

Mikester · 11-15-2012, 12:52 PM

It would be a good idea to change the flange gasket; but it may still be okay. Those 4 nuts are notorious for coming loose- which is why Nissan sells OEM T25/T28 locking plates to keep them in place: Nissan Genuine OEM T25 T28 Turbo Turbine Locking Tab

revsx · 11-15-2012, 03:00 PM

Thanks cause I ordered coilovers and that gave me the motivation to get the car back running properly and I never thought about the gasket being blown from the loose turbo nuts, but hopefully it isn't and I'll get to drive for the first time in a few months.

jr_ss · 11-15-2012, 04:43 PM

It's a good idea just to replace all of those factory gaskets while you're at it.

11-15-2012, 12:33 PM	#1
revsx Leaky Injector Join Date: May 2010 Location: Boise Age: 29 Posts: 111 Trader Rating: (1) Feedback Score: 1 reviews	SR20 Exhaust Leak No Boost So awhile back I was at a track day and went off track and hit a tire wall head on and then I could hear an exhaust leak, but thought I had scraped a hole in my exhaust. Upon driving around the track I was only building about 3psi of boost and the needle wasn't very steady. When I got the car home above the turbo on the hood it was really hot. After I let it cool down I realized the turbo was loose on 2 out of 4 of the bolts. I haven't gotten the turbo off yet as I need a different wrench to get the line off the back of the turbo or block (They seem equally as stupid.), but after explaining the circumstances what are the chances the manifold/turbo gasket is blown?

11-15-2012, 12:52 PM	#2
Mikester Nissanaholic! Join Date: Jun 2007 Location: Kathleen, GA Age: 50 Posts: 1,941 Trader Rating: (0) Feedback Score: 0 reviews	It would be a good idea to change the flange gasket; but it may still be okay. Those 4 nuts are notorious for coming loose- which is why Nissan sells OEM T25/T28 locking plates to keep them in place: Nissan Genuine OEM T25 T28 Turbo Turbine Locking Tab __________________

11-15-2012, 04:43 PM	#4
jr_ss Post Whore! Join Date: Dec 2005 Location: Pa Posts: 6,056 Trader Rating: (34) Feedback Score: 34 reviews	It's a good idea just to replace all of those factory gaskets while you're at it. __________________ My SR20VET

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11-15-2012, 03:00 PM	#3
revsx Leaky Injector Join Date: May 2010 Location: Boise Age: 29 Posts: 111 Trader Rating: (1) Feedback Score: 1 reviews	Thanks cause I ordered coilovers and that gave me the motivation to get the car back running properly and I never thought about the gasket being blown from the loose turbo nuts, but hopefully it isn't and I'll get to drive for the first time in a few months.