Boost Leak

[engo]

hey all...plz help me out with my retarded boost leak that i cannot find... how to u go about finding one of these suckers.. i know its small...cause it only start whistling at about 5 pound... its on the drivers side so i dont think it oculd be anything else.... how to u find these things!!!

[Sandeep]

does anyone sell boost leak testers for skyline intake piping? I bought one for my zed, basically you remove your afm and the boost leak tester fits into the piping, it's got a tyre valve and a pressure guage on it. then you hook it upto a compressor and pump air into the intake and listen for leaks. when the pressure guage actually stays steady then you know there's no leaks. you'll be suprised at how many leaks you can find, when i first did the test the pressure guage didn't move, had to tighten just about every clamp in the intake and now it holds 5psi and no leaks.

mine cost $50, easily payed for itself in saved petrol $$

heres a pic:

it's made by these guys: http://boostpro.net/prodtester.html and is distributed by Caz at www.cazracing.com.au

[Finchy33]

I machined up this for mine... Was absoluetly no use at all. Ended up just checking everything by hand.

Edited March 22, 2008 by Finchy33

[cefiro]

here is a link to how to make one

http://www.vfaq.com/mods/ICtester.html

I am having boost issues as well and will try and do this one soon.

I am wondering if you did it from the exhaust back could you also check for leaks in your exhaust around the turbo/manifolds etc?????

[engo]

I machined up this for mine... Was absoluetly no use at all. Ended up just checking everything by hand.

just wondering...how do you check these by hand??

[RBwhatever]

1. take your pod and AFM off.

2. use a baked bean can (full) and put it into your rubber intake pipe (assuming its still the stock one).

3. tighten up the hose clamp onto the tin creating a seal.

4. Open the throttle body with a brick on the accelerator pedal, so you can read pressure on the boost gauge.

5. take a hose that is plumbed into your intake between the turbo and the plenum or off the plenum itself.

6. Get an air compressor and pressurize the system through the hose and get someone to read the psi on the boost gauge. you only need about 5psi. you can use the compressors at the servos.

7. Listen for a leak. And use the soapy water in the spray bottle to find exactly where it is if need be.