Shut Down No Start
Thread Starter
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Fleet Mechanic
Joined: Nov 2008
Posts: 1,443
Likes: 9
From: South Alabama
nope. Under the ”C” clip on top of the injector. I was hitting the “C” clip to get it out and slipped and hit “that metal ring just below it” what ever it’s called 
, and broke it. 
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Fleet Mechanic
Joined: Nov 2008
Posts: 1,443
Likes: 9
From: South Alabama
On the same note, Mark you were right. Its the HPOP, an “O” ring or the STC fitting. I’m not a happy camper. One of my grandsons is coming home from Collage this weekend to help me.
I’ve got no one to point the finger at but me. I put this engine together. 
I’ve got no one to point the finger at but me. I put this engine together.
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Fleet Mechanic
Joined: Nov 2008
Posts: 1,443
Likes: 9
From: South Alabama
Thanks Jack!! Got pump off finally and don’t see anything obvious. Yellow “O” ring in proper place and so was the other one. Is this a reman pump or are those markings normal. Really didn’t notice that when installing. Big question. How do you test the pump?
Hotshot
Joined: Dec 2014
Posts: 17,836
Likes: 3,136
From: Jersey Shore
Setting up a bench test rig should not be that hard, but I don't know anyone who has done so. Pumps are not that hard to test. Our old aircraft hydraulic division had a ton of test benches.
Can't tell you anything about the HPOP labels though.
Can't tell you anything about the HPOP labels though.
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Fleet Mechanic
Joined: Nov 2008
Posts: 1,443
Likes: 9
From: South Alabama
I found a Navastar test procedure. Will do it but don’t really have a lot of faith in it. Last thing is to put it in and test before I put it all back together. (That is what I should have done before I took it out)
Lead Driver
Joined: Mar 2010
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From: Woodbridge, Ontario, CA
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Fleet Mechanic
Joined: Nov 2008
Posts: 1,443
Likes: 9
From: South Alabama
No, I did air test and had a pretty hefty leak. Re sealed all passenger injectors and still had a considerable leak. I’m trying to figure out how to do a test on pump outside of engine. All ideas welcome 
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Fleet Mechanic
Joined: Nov 2008
Posts: 1,443
Likes: 9
From: South Alabama
I did nipple cup seals when i did the engine about 15,000 miles ago. Didn’t do new nipple cups. I took the CV out of the valve cover and have same leak on drivers side. Praying it’s not branch tubes.
Laughing Gas
Joined: Jan 2007
Posts: 883
Likes: 5
can you test the ipr valve?
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Fleet Mechanic
Joined: Nov 2008
Posts: 1,443
Likes: 9
From: South Alabama