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

Lift pump install

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Old Dec 18, 2012 | 07:41 PM
  #1  
lodal cummins's Avatar
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From: portland oregon
Default Lift pump install

So I'm having a problem getting this bugger to line up. When I insert pump I got about 1/4 gap between block and pump. I know this pump has a different angle then my 92 as its just flat. Which made it a cake walk. I've tried baring the motor to find lowest spot on cam lobe.maybe just didn't find it!!! Will this pump snug up when tightening bolts to close that gap? Thanks so much!!!
 
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Old Dec 18, 2012 | 09:00 PM
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what are you trying to do? install a 2nd gen pump on a 2nd gen or a 2nd gen pump on a 1st gen? check overall length of the pump and the plunger from the old to the new. ifthey are the same use 2 longer bolts to reach the block. snug them down so that the factory length bolts reach then swap them for factory one at a time. check lenght first.
 
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Old Dec 18, 2012 | 09:29 PM
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lodal cummins's Avatar
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Yeah I'm doing a 2nd gen. I think my cam lobe is not in lowest point. The plunger shafts are the same length old one v.s. new one. Plus I've decided I'm going to use studs instead of factory bolts. Seems it will make it way easier to mount the pump. I was saying my 92 was a cake walk but different LP pumps.
 
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Old Dec 18, 2012 | 09:54 PM
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2nd gens are easy 2. use a longer bolt/stud and you will get it.
 
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Old Dec 18, 2012 | 10:07 PM
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It will snug up I think even on the shortest part of the lobe there is some pressure on pump arm.
 
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