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Old 07-28-2009, 07:36 PM   #5
Scooby Guru
Member#: 32459
Join Date: Feb 2003
Chapter/Region: Tri-State
Location: NY
02 WRX VF34
Junior Tuned 301whp


Originally Posted by phantomsr View Post
Did the same thing but I just capped the turbo inlet and pressurized through a fitting in the inlet. He has that pressurized from where the MAF elbo connects to the inlet pipe. Full intake leak check. Much easier than trying to listen for a leak over the running engine. Make sure you don't over pressure. I wouldn't exceed 20 PSI and I only used 15 on mine. Unless you have disconnected the PCV valve you will pressurize the crankcase too.

Without disconnecting PCV valve, you will blow the cam seal.

Do not perform DIY leak check without disconnecting it.

Learned my painful lesson the harder way.
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Last edited by txl146; 07-29-2009 at 01:24 AM.
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