Pressure testing the cold side...
Thread Starter
Joined: Feb 2003
Posts: 2,145
Likes: 133
From: East Chatham, New York
Pressure testing the cold side... I had been reading some posts on how you can detect pressure leaks on the cold side with interest since I suspect I might have just such a leak. One post suggested going to the hardware store and finding an PVC end cap that would just fit inside a 3” coupler. With 2 such end caps you could uncouple at/near the throttle body and at the outlet of the turbo and seal your cold side. Prior to putting one of the caps on, he suggested drilling an hole suitable for an air hose fitting and seal it onto that cap. With such a setup, you could dial down the PSI on your Air compressor regulator to a suitable level and, after attaching the air hose you can go around the system using either your ear or soapy water to detect pressure leaks.
That in mind, I went to my local Ace hardware affiliate but couldn’t find and caps that had the outside diameter right at 3”. I *did* however, find these…
Notice they are fully sealed on the ends. All one has to do is drill out the little plastic raised area on the tip (and a little larger for the air hose fitting) and insert the fitting…
You simply insert the plugs into the couplers, tighten the red screw till it’s nice and tight, the hook up the air hose and start testing.
Thanks,
Dave
That in mind, I went to my local Ace hardware affiliate but couldn’t find and caps that had the outside diameter right at 3”. I *did* however, find these…
Notice they are fully sealed on the ends. All one has to do is drill out the little plastic raised area on the tip (and a little larger for the air hose fitting) and insert the fitting…
You simply insert the plugs into the couplers, tighten the red screw till it’s nice and tight, the hook up the air hose and start testing.
Thanks,
Dave
Thread Starter
Joined: Feb 2003
Posts: 2,145
Likes: 133
From: East Chatham, New York
I ended up still having to use the T-bolt clamps to keep the ends in place but it worked perfectly. I found my leak and repaired it. Going for a test drive soon.
Dave
Dave
