Quote:
Originally Posted by beatd
anyone got advice on how to check for vacuum leaks?
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simple, home depot boost/vacuum leak tester.
get a coupler with an ID the same as the OD of the intake side of the turbo. also, get a cap that fits inside the coupler as well. drill the top of the cap and push in a tire valve stem. and glue it in place so no air can leak out. using hose clamps tighten the cap on one side of the coupler with the tire valve sticking out, then tighten the other side of the coupler onto the intake side of the turbo (assuming you have already taken the intake piping off) then run pressurized air through the system, with the car off. check your boost gauge to and build up at least the amount of pressure you'd run at full boost. air should bleed off 1psi about every 3-5 secs.
to help pinpoint a leak, spray soapy water around the couplers, intake mani, essentially everything that would be exposed to vacuum/boost. and see where it bubbles.
btw dont be an idiot and start the car while pressure is still in the system. or suck in a bag of sand through the intake, tryin to port and polish the head. lol.
07-14-2008, 01:13 PM
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