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  #11  
Old 03-11-2019, 05:30 PM
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CubDieselFan CubDieselFan is offline
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When I first got my 1572 in 1998. It would run great at half throttle and no load. It would stall and quit sorta like you are explaining. I changed the filters and it was all good.
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  #12  
Old 03-23-2019, 03:16 PM
jpswift1 jpswift1 is offline
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I changed the filters and put fresh diesel in it and it didn't do anything. I took the lines off at the injectors and it is getting fuel.

Is there any way to clean the injectors and test the pressure at the injector pump to make sure it's working as it should?
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  #13  
Old 03-23-2019, 08:31 PM
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Quote:
Originally Posted by jpswift1 View Post
I changed the filters and put fresh diesel in it and it didn't do anything. I took the lines off at the injectors and it is getting fuel.

Is there any way to clean the injectors and test the pressure at the injector pump to make sure it's working as it should?
You should just loosen the line a 1/4-1/2 turn @ the injectors one @ a time and crank it.
It should squirt fuel from the loosened fitting and that bleeds air out of it.
To answer your question:
Yes, a diesel shop can test and adjust the cracking pressure of the injectors.
I have done a few. it is not something you can do yourself effectively.
What you can do, is remove the injector and hook it to the line and crank it to see if it will spray a cone pattern.
( different engines have different patterns)
Just be careful as they are in the vicinity of #2000 give/take.
It will pierce your skin if it is exposed to the nozzle spray/pressure.
Be sure to have the throttle open when bleeding/testing
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  #14  
Old 03-23-2019, 08:36 PM
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Quote:
Originally Posted by jpswift1 View Post
I changed the filters and put fresh diesel in it and it didn't do anything. I took the lines off at the injectors and it is getting fuel.

Is there any way to clean the injectors and test the pressure at the injector pump to make sure it's working as it should?
The secondary filter may have air in it, unscrew the plastic filter housing a little and turn on the key to push out any air in it. It will make a mess....
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  #15  
Old 03-23-2019, 09:20 PM
jpswift1 jpswift1 is offline
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Thank you for the help! I'll try that tomorrow and see if I get somewhere.
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  #16  
Old 03-24-2019, 03:07 PM
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Additionally there is an air bleed screw on the banjo fitting on the injector pump. Withe the key on and this screw just cracked you should have fuel flowing at this point. Any air in the system should bubble out as well.
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  #17  
Old 03-24-2019, 05:26 PM
jpswift1 jpswift1 is offline
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Again, thank you for all the assistance everyone......this site and its members are great!

Unfortunately, this problem looks like it's going to be bigger than I anticipated. Two of the three injectors were working fine when I pulled them out and cranked the engine over.......a nice steady and strong spray patter. The injector does nothing though. I switched a the injectors around and put one that was spraying fuel on the line that wasn't and the same thing happened, nothing came out. So that line coming from the injector pump isn't getting fuel.

1) Would the engine still start and run on 2 out of 3 cylinders?

2) Could a broken injector pump spring be the cause of this?
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