found these links on line for testing boost leaks
[media]http://www.youtube.com/watch?v=atretf9u-Mc [/media][media]http://www.youtube.com/watch?v=s29Q77hK-i4 [/media]

Didi have one question- if i am trying to find a leak that is in the manifold area what is the best way to safely set the test up?

 

Smoke machine is the easiest . But they are not cheap .

Me I just start the car and feel for it . Your a cook you should be able to handle the heat as myself


Maybe you can get Steve to puff a pack and blow in the tailpipe

 

We used to spray CRC (like WD-40) on the carbs, manifolds and vacuum lines to find leask. It worked great.

 

Does not work for boost leak as boost pushes air out . On a NA car it sucks the Carb cleaner in and stumbles the motor .


Wont do anything to find the exhaust leak .

Plus I would not spray anything harsh on the coatings

 

Ok so I did some more research and from what I understand the test can be performed two different ways. This is where I was confused. You can pressurize the system from the turbo inlet on or you can test from the turbo outlet beyond. I will perform the test by presurizing from the turbo inlet I'm assuming I should take off my oil cap to vent the crankcase pressure as most of the videos/diy instruct. I'm going to build a boost leak tester today to have for sunday.

 

Actually, it made the motor run smooth for a moment. The lubricant would seal the leak for a second and the engine would smooth out. Then the CRC would get sucked into the leak and the motor would idle rough again.

 

If you are trying to find an exhaust leak then its really simple . Simply get some rags and stuff them in youre tailpipe . Then you will need someone to hold the rags in place while you start the engine . Walk around the front and take a listen for a hissing sound that will be somewhat loud . Keep in mind however the rags in the tailpipe do get warm rapidly and the poor sucker holding them in place may be burnt if they are not wearing gloves or some form of hand protection . It is usually better to do this with a cold engine .