SR20 Boost leak issues - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

DrewS13Coupe · 02-22-2007, 11:43 AM

Ok, I've been chasing boost leaks for a while now and I had the car running good for the past 200 miles. Then all of the sudden it turns to crap on me driving home from work yesterday. So I plugged in my pressure tester so I can pressurize all of the piping and I hear this god awful leak from just behind the valve cover. I thought it might have been the check valve for the brake booster but no such luck. What other vaccum lines and junk is there back behind the head? I didn't do my swap so I'm not real familiar with what's back there.

Any help is appreciated.

Luvs2slide · 02-22-2007, 11:53 AM

As far as vaccum...hmmm. Well that I know of, there are 2 Heater hoses, then, the brake booster line, and then you have some coolant hoses. Ones is for the stock turbo and there may be a another one...I'm not too quite sure. But as far as straight vacuum hoses, I dont really think there is any. Hope that helps.

02-22-2007, 11:43 AM	#1
DrewS13Coupe Join Date: Oct 2006 Location: DFW Age: 38 Posts: 2 Trader Rating: (0) Feedback Score: 0 reviews	SR20 Boost leak issues Ok, I've been chasing boost leaks for a while now and I had the car running good for the past 200 miles. Then all of the sudden it turns to crap on me driving home from work yesterday. So I plugged in my pressure tester so I can pressurize all of the piping and I hear this god awful leak from just behind the valve cover. I thought it might have been the check valve for the brake booster but no such luck. What other vaccum lines and junk is there back behind the head? I didn't do my swap so I'm not real familiar with what's back there. Any help is appreciated.

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02-22-2007, 11:53 AM	#2
Luvs2slide Zilvia FREAK! Join Date: Oct 2006 Location: NW Florida Age: 43 Posts: 1,490 Trader Rating: (81) Feedback Score: 81 reviews	As far as vaccum...hmmm. Well that I know of, there are 2 Heater hoses, then, the brake booster line, and then you have some coolant hoses. Ones is for the stock turbo and there may be a another one...I'm not too quite sure. But as far as straight vacuum hoses, I dont really think there is any. Hope that helps.