12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Delivery valves leaking

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Old Dec 22, 2012 | 12:51 AM
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slowboogy's Avatar
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Default Delivery valves leaking

95 dodge 12 valve auto trans the delivery valves are leaking right around the top where the lines go into it is there like o rings suppose to be right there it's hard to explain its like right were the lines go into the top part... Any help??? Please
 
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Old Dec 25, 2012 | 01:35 AM
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Take all 6 lines completely off clean all sealing connections with compressed air, reinstall lines. This happened to me at the injector side and no matter how tight I got it it still leaked. It's just a compression fitting like a brake line...
 
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Old Dec 27, 2012 | 07:45 PM
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so there aint no o ring or anything in there so clean them real good
 
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Old Dec 27, 2012 | 08:32 PM
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There are o-rings down in the holders, but none up top where the lines come out. Like was said before, just take them off, clean them off and try again. Also while you have it apart, make sure the lines aren't nicked or anything.
 
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Old Dec 31, 2012 | 11:44 AM
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do i need a special socket to fit them? and should i have any problems with air in lines or anything like that?
 
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Old Dec 31, 2012 | 02:10 PM
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You need a special socket to get the holders off, but not the injection lines themselves. You will get some air in the lines, but not a terrible ordeal. When you're done, just crack the lines at the injectors one at a time to bleed the air out.
 
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Old Jan 2, 2013 | 08:16 PM
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Originally Posted by 12v15004x4
Take all 6 lines completely off clean all sealing connections with compressed air, reinstall lines. This happened to me at the injector side and no matter how tight I got it it still leaked. It's just a compression fitting like a brake line...
Agreed. It took me a couple times to get mine all sealed up after I did my head gasket.
 
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