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

Used 5.9 cummins with locked up P pump

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Old Nov 29, 2011 | 05:47 AM
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6BT-F350's Avatar
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From: N.E. Ohio
Default Used 5.9 cummins with locked up P pump

Mornin bombers.. Purchased a 1994 5.9 from a small out in the middle of nowhere salvage yard for just over scrap price. Guy said i am selling as scrap or a core because the motor is locked up. Ok, I'll take a chance on it. Got it home found out it will only turn about 90 degrees, first check killer dowl pin, nothing. so next take off head and nothing in cylinders to hold it up. Scratch head. Cant be bottom end, nothing clanging around down there, so pull gear off P-pump and found that the pump is locking up.
Any ideas on what could be locking up in pump. I am familiar with the VE but not the 7100. I saw in some exploded views there is a cam and governer weights that could be a possible failure point. No external damage.
Hoping there is no major damage to pump, want to do a total rebuild maybe in a few years to replace my first gen 5.9 in my ford.
Thanks for your help.............................................: humm:
 
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Old Nov 29, 2011 | 09:53 AM
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monster12valve's Avatar
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From: willowick, ohio
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did u pull the afc off and look inside? also i would pull the gsk plug and see if one of the nuts that holds the springs on backed itself off.
 
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Old Nov 29, 2011 | 11:39 AM
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Thanks Monster12valve... Will take a look into the plugs, let you know what I see.
 
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