Boost Leak Test Help Sat. 11/12 Options

[Kazz5]

This isn't really a one-man job and I'd like to feel that I did a thorough job once and for all. I'm looking for a couple of experienced ears (experienced at locating boost leaks, thanks) to pitch in. I've got everything I need to get her up and even effect any needed repairs and/or replacements (except JB Weld and the new FMIC had DAMN sure better not need it).

Saturday probably right after lunch but I'll get a time up once I clear it with the household social director, heh.

I'm in Peoria, off of Willow Knolls and I would imagine should have local help. Anybody's welcome, of course.

I want this done Saturday because, dammit, Sunday's for football - and that social director agrees.

I've got an ignition to go on as well - no big deal just four wires to splice, really, with 4 new plugs. And while I'm at the electrical I never did wire up the boost gauge for her lights ... hmmm... *laugh* I can take care of the little things. It's the boost leaks I'd like a good thorough once-over done.

Thanks!

[Booztd 3]

boost leaks can definately be a one-man operation..........


You need to put enough air into her, so that it holds air long enough for you to find the leak........I have a tester with a guage on it. I replace the air filter with this tester.......I typicaly put 7-10psi into the system, and listen for leaks. If you cant hold that much air then you'll have a big enough leak you can find easily yourself........

I bought mine from boostpro.com

Good luck

[natedogg]

I bought mine from farm-n-fleet. Fernco cap, clamp, and valve stem. $5.

[Kazz5]

Mine's like nate's w/no gauge is all. And I want to test her up to 25 lbs ...

[Booztd 3]

I would not attempt at pumping that much "dry" air into the system. You risk blowing out some seals.........

You should be able to find leaks at 14psi..if its not leaking at 14psi, its probably not leaking at 25

[Kazz5]

I would not attempt at pumping that much "dry" air into the system. You risk blowing out some seals.........

You should be able to find leaks at 14psi..if its not leaking at 14psi, its probably not leaking at 25

Dunno, but point about the seals is well taken ... how about 18?

... besides, won't the BOV take care of anything over max boost?

[Booztd 3]

This is a different kind of pressure......

Watch your rubber intake piping when you do the pressure test. Even at 7psi it starts to inflate/expand real bad......

Now watch it on the street, it wont do that

I'd still stick with 14max

[wortdog]

I would not attempt at pumping that much "dry" air into the system. You risk blowing out some seals.........

You should be able to find leaks at 14psi..if its not leaking at 14psi, its probably not leaking at 25

I'd test it at slightly higher than whatever boost you're planning on running. I've seen plenty of leaks that didn't leak at all until you got past 20psi. The air is just as dry if its compressed by the turbo as it is from an air compressor, you're not going to damage anything that wouldn't have been damaged anyway from higher boost.

I ran the DSM around for a bit with no hood, the couplings definately swell just as much when on boost as they do during a boost leak test.

[Booztd 3]

I know the couplings will, I've seen that, because thats in the pressurized tract........i just referred to the rubber inlet tube that feeds into the turbo........

[wortdog]

On DSMs we usually just hook the tester right up to the turbo anyway. Those inlet tracts aren't designed to take boost at all.