Hotwheelz

iTrader: (18)

You got to check this video out of a test I performed. In the video I called the pressure tank the wrong name. I called it the vacuum tank. I meant pressure tank.


http://www.youtube.com/watch?v=OfAlNNPGtXo

coredata

iTrader: (1)

Congrats on finding the problem!

thewird

iTrader: (8)

That's pretty rare but glad you found the problem.

thewird

Slideways.FD

iTrader: (6)

thats pretty cool, good work finding that leak.
hell i'm goona test mine just cause you never know...

surfmon

iTrader: (6)

what were your symptoms?

gracer7-rx7

iTrader: (16)

Brilliant testing procedure.

FAQ has been updated with a link to this thread.

Hotwheelz

iTrader: (18)

symptoms were secondary boost drop off through the gears. At 4500 RPM My boost whent to 5,6,7 if lucky. The only way I could get the secondary up to full boost was to drop a gear and floor it. Bottom line it had a pretty substantial leek. I have'nt put a new one on yet but i will in a couple days. I'll post a reply regarding if it helped or solved the secondary boost issues

jmadams74

Just out of curiousity, why aren't you checking these lines/tanks with pressure and boost gauges instead of in the bathtub?

Hotwheelz

iTrader: (18)

i dont own any gauges yet. and even still I would do it this way because it is very easy to spot even a slow leak

DaleClark

iTrader: (55)

Good find. The test of disconnecting the vacuum line to the pressure chamber and hearing the "woosh" is the first thing to look at. If that holds true, you've got a good tank, check valve, and solenoid in the circuit.

You could also cap one nipple and hook a MityVac to the other one - apply vacuum, if it leaks down, there ya go. But, it doesn't make a good Youtube video.

I hope you have my Viton check valves as well .

Good stuff!

Dale