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Intercooler Pressure Test

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Old Mar 21, 2018 | 08:39 PM
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Intercooler Pressure Test

I picked up an all aluminum intercooler and want to pressure test it before install. Any recommendations for plugging it off and what pressure I should test it at? Just go 15lbs or so and check for leaks or run it up to 40?
 
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Old Mar 21, 2018 | 09:50 PM
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Run to the local hardware store and get some PVC plugs/caps that will fit inside the CAC boots. Drill and tap one of them and install an air fitting. Hook air up to a regulator to limit to a couple PSI as you don’t want to shoot the plugs across the shop and squirt with soap and water.
 
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Old Mar 21, 2018 | 09:55 PM
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I use a ball valve so I can limit the air going in. Shouldn’t need more than 1 psi to show a leak if you spray it with soap and water. And I wasn’t kidding about shooting the plugs across the shop been there done that.
 
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Old Mar 21, 2018 | 10:34 PM
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Can’t seem to find any kind of cap that is 3” ID to fit in the cac boot. I’ll keep searching.
 
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Old Mar 21, 2018 | 11:10 PM
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Soup can? Maybe
 
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Old Mar 22, 2018 | 05:41 AM
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Have you tried the Fernco Caps? They are a rubber pipe fitting
https://www.fernco.com/plumbing/resi...bing/qwik-caps

The nice thing about them is that they are rubber and will conform
to the ports of the system and give a good seal. Then you can get
them to conform to the fittings so seal better.
One thing to do would be to get a snug fitting so the caps don't blow off.
That sure give other mechanics a major pucker factor if they do b;ow off.
 
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Old Mar 22, 2018 | 07:03 AM
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Old Mar 22, 2018 | 09:56 AM
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I have an expandable plug in one end that I picked up at Lowe's, just need something that fits and I can put a valve stem in or tap a thread for the other end. I think I found something so we'll see how it works.
 
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Old Mar 22, 2018 | 12:15 PM
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Originally Posted by akblackfoot
I picked up an all aluminum intercooler and want to pressure test it before install. Any recommendations for plugging it off and what pressure I should test it at? Just go 15lbs or so and check for leaks or run it up to 40?
I probably wouldn't run it up to 40 psi but I have seen 25psi on my boost gage.....
 
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Old Mar 22, 2018 | 04:28 PM
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Originally Posted by HT32BSX115
I probably wouldn't run it up to 40 psi but I have seen 25psi on my boost gage.....
I've seen 30+. I guess if it holds air at 15lbs it should hold it at 30. Just want to check for leaks before I install it.
 
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Old Mar 22, 2018 | 05:37 PM
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For checking for leaks when I was in school this how we did it.
We used the plugs that HT32BSX115 showed .
Then there was a regulator and a threaded connection to get the air in.

The regulator was set under 5PSI. We used spray soap or a dunk tank.
 
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Old Mar 22, 2018 | 05:59 PM
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Originally Posted by Yahiko
For checking for leaks when I was in school this how we did it.
We used the plugs that HT32BSX115 showed .
Then there was a regulator and a threaded connection to get the air in.

The regulator was set under 5PSI. We used spray soap or a dunk tank.
That's most likely my route with the spray soap and lower pressure.
 
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Old Mar 23, 2018 | 11:04 AM
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Or you could dunk it in the pool.
akblackfoot, Looking forward to seeing your results.
 
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Old Mar 24, 2018 | 05:48 PM
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Got her figured out. Threaded hole in the cap for a regulator.
 
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Old Mar 24, 2018 | 06:27 PM
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sweet .
 
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