Engine/Transmission (1998.5 - 2002) Checking for boost leaks

[DLBurns]

Anyone have plans or instructions for a home made boost leak checker.

 

[ThrottleJockey]

I made a cheap one with some wood I cut out with a 4" hole saw. 2 pieces of wood. One was thick, like 1 inch, and the other was some paneling. About 1/8th of an inch thick. Pop a valve stem into the panel wood and glue this to the thicker piece. Once the glue sets up, its airtight.



Cheap and easy.

 

[rweis]

I started to reply the other day and my 'puter took a dump. It took a couple of days to put it back together.



I built my boost checker from Home Depot parts.



4" rubber pvc pipe connector

4" pvc end for a screw in plug

4" screw in plug

2 4" hose clamps

about 2' of 3/4 ' square tubing

about 4' 1/4 threaded rod

8 wing nuts for the 1/4" threaded rod



Construction:

1. put 4" rubber connector over end of end piece with the screw in threads, hose clamp on really well

2. put pipe dope on the screw in plug and screw it into the female threads really tight. The reason to use the screw in plug is to get the raised square wrench part of the screw in plug. You are going to mount a 1/4 NPT air hose adapter in the pedalstal of the screw in plug. Makes a nice square flat heavy duty place to mount the 1/4 NPT air hose adapter.

3. the other end of the 4" rubber connector goes on the turbo mouth.



I tried to tighten it down really well, but could never tighten it enough to keep it from blowing off as I got the test psi above about 5 psi. So I build 2 retaining brackets to keep it from blowing off.



Brackets:

One side of the brackets go on the firewall side of the turbo, the other side go on the grill side of the screw in plug. Sort of like a square to keep the adapter from moving toward the grill when pressure is applied for the test. One square for the fender side of the turbo and one square for the engine side of the turbo so there is an even retension so the adapter does not get cocked off a square angle to the turbo.



1. cut the 3/4 square tubing into two 1' pieces.

2. cur the threaded rod into 4 1' pieces

3. drill the end of the square tube so the threaded rod will pass through and you can put a nut on the threaded rod on the other side



Assemble the square retaining bracket

1. square tubing are the verticle pieces, threaded rod are the horizontal pieces.



Email me your phone number and I will better describe the construction if you decide to go this way.



Bob Weis



I have used mine several times to find a split boost gauge hose, boot with a split that would only show a split over 25 psi

 

[DLBurns]

I started to reply the other day and my 'puter took a dump. It took a couple of days to put it back together.



I built my boost checker from Home Depot parts.



4" rubber pvc pipe connector

4" pvc end for a screw in plug

4" screw in plug

2 4" hose clamps

about 2' of 3/4 ' square tubing

about 4' 1/4 threaded rod

8 wing nuts for the 1/4" threaded rod



Construction:

1. put 4" rubber connector over end of end piece with the screw in threads, hose clamp on really well

2. put pipe dope on the screw in plug and screw it into the female threads really tight. The reason to use the screw in plug is to get the raised square wrench part of the screw in plug. You are going to mount a 1/4 NPT air hose adapter in the pedalstal of the screw in plug. Makes a nice square flat heavy duty place to mount the 1/4 NPT air hose adapter.

3. the other end of the 4" rubber connector goes on the turbo mouth.



I tried to tighten it down really well, but could never tighten it enough to keep it from blowing off as I got the test psi above about 5 psi. So I build 2 retaining brackets to keep it from blowing off.



Brackets:

One side of the brackets go on the firewall side of the turbo, the other side go on the grill side of the screw in plug. Sort of like a square to keep the adapter from moving toward the grill when pressure is applied for the test. One square for the fender side of the turbo and one square for the engine side of the turbo so there is an even retension so the adapter does not get cocked off a square angle to the turbo.



1. cut the 3/4 square tubing into two 1' pieces.

2. cur the threaded rod into 4 1' pieces

3. drill the end of the square tube so the threaded rod will pass through and you can put a nut on the threaded rod on the other side



Assemble the square retaining bracket

1. square tubing are the verticle pieces, threaded rod are the horizontal pieces.



Email me your phone number and I will better describe the construction if you decide to go this way.



Bob Weis



I have used mine several times to find a split boost gauge hose, boot with a split that would only show a split over 25 psi

Thanks Bob... I have assembled some parts similar to what you have and will fabricate one this week to check for leaks.

Dave

 

[USMCBay]

I found my leak today looking at my failing FUEL PUMP... saw some blown out gasket right behind my Fuel Pump about three inches back toward the Firewall.



Is this hard to replace?