Pressure testing intake system. Anyone done this?
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From: Chicago
Pressure testing intake system. Anyone done this?
I'd like to test my intake system for vacuum leaks, and it turns out that the shop manuals show a kit for doing this (000.721.926.40, $180).
Looks like it would be really easy to make this; just need some PVC or aluminum plate plus a valve stem. Just wondering if anyone else has gone down this road. I briefly checked Home Depot and couldn't find any PVC plates.
Looks like it would be really easy to make this; just need some PVC or aluminum plate plus a valve stem. Just wondering if anyone else has gone down this road. I briefly checked Home Depot and couldn't find any PVC plates.
Last edited by TheOtherEric; Apr 14, 2008 at 01:16 PM.
Thread Starter
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Joined: Nov 2002
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From: Chicago
The shop procedure is to pressurize to 0.5 bar (7 psi) then listen for major leaks and/or use leak detection spray for minor leaks.
p.s. for anyone contemplating this, you also have to plug off the hose at the pressure relief valve in the front of the right rear wheel since this test also pressurizes the oil tank, which would cause the relief valve to blow at 0.2 bar. There may be an easier way to do that, but this is what the manual says.
p.s. for anyone contemplating this, you also have to plug off the hose at the pressure relief valve in the front of the right rear wheel since this test also pressurizes the oil tank, which would cause the relief valve to blow at 0.2 bar. There may be an easier way to do that, but this is what the manual says.
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Steve, can you give a little more description of how this is done? And what do you use to create the smoke?
RL Technical Advisor
Joined: May 2001
Posts: 11,870
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From: Portland Oregon
With 2-4 psi at the machine, its not difficult to spot any air leaks in a few moments,...
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