Driver side injectors.
Posting Guru
Joined: Aug 2013
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Thank you Money-Pit for posting the videos, best description of the test. Making a long story short wished I'd of done it when it was first mentioned to me in my thread. Would have got me going in the right direction alot sooner. I'm not a professional mechanic nor did I stay in a Holiday Inn Express as another person has but it is such an easy test and lets you know the mechanical side of the injectors health quickly.
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
When you polished up the spool valves, did you use like a 600 or 800 grit sand paper or steel wool? Also how far have you gotten after polishing them, and have the issues you had returned?
Thank you bismic for the suggestion. Totally worth a try now, and for the price I don't think it's a bad idea.
Sent from my mind thanks to the Internet and an app.
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Senior User
Joined: Aug 2011
Posts: 125
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From: Delta British Columbia
Holy....thanks money-Pitt these vids totally cleared a lot for me. I actually went through and watched all 6 that were made. Total reps coming your way.
Update: I went ahead and performed the bubble test. Following all steps I monitered to see if any bubbles were escaping through the stand pipe in the middle of the bowel and all was good. I performed it three times (waiting almost 10 mins between tests) and got passing results every time! So I've concluded that mechanically my injectors are seated proper and aren't allowing any compression to escape through.
Now my next steps will be to polish the spool valves and run Archoil.
It's just occurred to me, is it possible for this intermittent long cranking to be due to failing nipple cup o-rings and injector top o-rings? I ruled this out originally because the shop told me that all pressure on the oil side was perfect, but I thought I would run it by you guys.
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Senior User
Joined: Aug 2011
Posts: 125
Likes: 0
From: Delta British Columbia
So before I go and spend $1200 on 4 injectors I'm going to clean them and see if that solves anything.
Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
Thanks for the heads up!
Holy....thanks money-Pitt these vids totally cleared a lot for me. I actually went through and watched all 6 that were made. Total reps coming your way.
Update: I went ahead and performed the bubble test. Following all steps I monitered to see if any bubbles were escaping through the stand pipe in the middle of the bowel and all was good. I performed it three times (waiting almost 10 mins between tests) and got passing results every time! So I've concluded that mechanically my injectors are seated proper and aren't allowing any compression to escape through.
Now my next steps will be to polish the spool valves and run Archoil.
It's just occurred to me, is it possible for this intermittent long cranking to be due to failing nipple cup o-rings and injector top o-rings? I ruled this out originally because the shop told me that all pressure on the oil side was perfect, but I thought I would run it by you guys.
Sent from my mind thanks to the Internet and an app.
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Senior User
Joined: Aug 2011
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From: Delta British Columbia
Sorry I ment to say, I would polish first test to see if it helps and run additive if needed.
I'll have to give it a try then. Swap over one of the injectors and then have them test again.
I'll have to give it a try then. Swap over one of the injectors and then have them test again.
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