***WORKING on car RIGHT now..Boost Leak Test!! Help, again lol!***

Discuss the RB20, RB25 and RB26 series engines.
Rb20_POWER
Posts: 85
Joined: Sun Feb 04, 2007 11:59 am
Car: '90 240sx w/ rb20det

Post

okok guys, finished my DIY boost leak tester and hooked it up to the ic piping before the turbo and tried pressurizing the system. Started pressurizing and i'm hearing a faint leaking sound that's coming into the intake. Looked closer and realized that the recirculating valve is letting a little bit of air (recirculating) back into the intake. Now as far as I know shouldn't the valve stay completely shut and air tight until it hits 7psi or am I wrong? I took the valve off and blew through it to see if it was air tight and it was if I covered the little whole beside the main valve. What it's doing is letting air through the little whole at the bottom of the valve and I think that's what I'm hearing. So is this normal, do I have a faulty valve, or should I plug it up to fully pressurize the system??? Any input from you RB owners would be helpful! Thanks homies! O ya its a rb20 and I had a 13 hour day at work so I'm a little delirious right now..


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