Cody test results
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Laughing Gas
Joined: Oct 2008
Posts: 1,102
Likes: 153
From: Kansas City KS
Cody test results
i have a excursion with a no start. Thread is on this forum. I used a 12m fine thread fitting to air qc at the icp head hole. I applied air and after 30 seconds heard gurgling. My question is. Is this an accurate way to text my injector orings? Or do I need to plug off the hpop line to eliminate it? My hydraulic shop didn't have the hpop line fitting and I was able to find the fitting for the icp location. Thanks for your help
Junior User
Joined: Apr 2015
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If I correctly understand what you did then no that is not the proper way to do the Cody test. You have to isolate each individual head from the other head and the HPOP at the same time. Next if I understand what you did the ICP hole is the same size and thread as the HPOP line hole in the oil rail.
Last, since the HPOP was in line and not isolated there is a chance that damage was done to it if air went back through it.
There was a post a while back where one of the HPOP builder advised against pushing air through the HPOP.
It is best to follow procedures exactly.
Last, since the HPOP was in line and not isolated there is a chance that damage was done to it if air went back through it.
There was a post a while back where one of the HPOP builder advised against pushing air through the HPOP.
It is best to follow procedures exactly.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
You were unclear if you pulled the existing ICP QD (QC) out to install your air QD, or if you added an air QD to one of the ICP plugs in the head. If you pulled existing QD out to perform the test, that was the correct way to do it - because it isolates the head from the rest of the ICP system. The only way ICP reaches both heads is through the HPOP hoses.
Gurgling on an isolated head indicates bad injector O-rings.
Gurgling on an isolated head indicates bad injector O-rings.
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Laughing Gas
Joined: Oct 2008
Posts: 1,102
Likes: 153
From: Kansas City KS
Tugly, Thanks for clarifying this. I had it hooked up incorrectly the first time as the head was not isolated. Once I isolated the head I did not have a leak. I'm looking for a straightforward dead head method now.
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