Home Depot Boost Leak Detector

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Home Depot Boost Leak Detector

Postby immorality » Mon Nov 09, 2009 5:03 pm

NoShoes wrote:Tools required:

Air compressor with regulator
Drill
8mm socket and socket wrench
adjustable wrench
1/4" NPT tap

Shopping list for Home Depot:
2.5" - 4" (depending on turbo inlet size) PVC pipe plug
2.5" - 4" ( " " ) hose connection
2.5" - 4" ( " " ) hose clamp
1/8" NPT to air compressor hose connection

Many variations can be done with this setup, but the basic idea is to drill a hole in the PVC pipe plug and tap it for the air compressor hose connection. What matters is the inlet size of the turbocharger. My particular turbo (and most single turbo supras) has a 4 inch inlet, so I used 4" components, but someone with a CT26 would use a smaller plug.

Image

You then attach the hose to the PVC plug and use one clamp to secure it in place, and the other to secure the hose to the inlet of the turbocharger.

Image

Turn the pressure on your air compressor pressure regulator down to 20-30 psi, hook up the air hose, and listen/feel for leaks!

In addition, you MUST open the throttle body to check for leaks in your intake manifold and fuel rail grommets!

Special note for those that still have the factory idle air control valve. You WILL leak out of the factory IAC valve unless you supply power to the black with yellow stripe wire and ground to one of the other wires that go to the IAC. The easiest way to bypass doing the wiring is to take a pair of vice grips and block off the IAC valve air tube that goes back to the intake.

Have fun with this one folks!
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immorality
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