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[7808]

i need to test my shit for leaks, looks like a 3" pvc plug will fit good then either tap it put a tire valve in it is what i think ive seen people do, or get  a plug thats threaded/rv blow out adapter .   

part im not sure about is if i can adjust the regulator in small enough increments before i blow somthing out or cause new leaks.. or is there a better way? also thought of making some kind of chamber inline with the air inlet with a cap or some kind of check valve on the side that i can blow smoke in

[klyph]

blow smoke into one of the vacuum lines, cap it, pressurize it, look for smoke.

[Minor Threat]

1) Plug turbo with cap thing.

2) Hook air gun up to a vacuum line in your chargepipes

3) Listen for leaking air

Quick and dirty, you might not find tiny leaks but if you've got a decent sized one you'll hear it.

Are you testing charge pipe or an intake manifold?

Intake manifolds are tested easy with carb cleaner or quick start.

[ADSR]

blow smoke into one of the vacuum lines, cap it, pressurize it, look for smoke.

works for me

[keelay]

start car and let idle. Spray ether all around until it revs up, then move in with the ether until you find the leak point

[patsmx5]

I just used a PVC cap, put it in the intake tube, drilled a hole in the cap and put a quick-connect air fitting in it, then snapped an aiar hose to it and adjusted the regulator on the compressor to pressurize it and look for leaks. Only took 10 minutes and 2 bucks to build, worked great.

[keelay]

I just used a PVC cap, put it in the intake tube, drilled a hole in the cap and put a quick-connect air fitting in it, then snapped an aiar hose to it and adjusted the regulator on the compressor to pressurize it and look for leaks. Only took 10 minutes and 2 bucks to build, worked great.

I like that, next time I need do find a leak, I'll definitely try that

[Tim]

I just used a PVC cap, put it in the intake tube, drilled a hole in the cap and put a quick-connect air fitting in it, then snapped an aiar hose to it and adjusted the regulator on the compressor to pressurize it and look for leaks. Only took 10 minutes and 2 bucks to build, worked great.

+1
Only thing i did was also picked up a few big ass squirt bottles you see janitors use from the dollar store.  A touch of soap and some water makes a simple tool to find your leaks if you're deaf like me.

[HiProfile]

I got PCV caps, pressure gauge, and a tire valve stem. Give it 20psi and let off, look for leaks. Using the regulator & air fitting is better for BIG or hidden leaks. I can tell you one thing, with no boost reference line, a Greddy type-S holds up to 18psi with just it's spring. That was my first test.

BTW if you try to include the IM with a leak tester, more than likely one valve will always be open. Same with the turbo, air will leak slowly past the shaft's piston ring regardless.



One other thing you can do is include the whole motor. I've never tried it, but you'd put a cap/test plug on the DP's outlet, set the motor so one cylinder is in overlap, and pressurize the turbo's inlet. Now you're leak testing everything at once...