1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

P-Pump questions

Old Jul 6, 2011 | 12:09 PM
  #1  
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Default P-Pump questions

What's it take to do it. I have access to a 97 12 valve that's blown up and have a runnin 92 12 valve that I want to put the pump on

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Old Jul 6, 2011 | 12:24 PM
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This cat maybe able to help you out.

https://www.dieselbombers.com/1st-ge...pump-swap.html
 
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Old Jul 6, 2011 | 06:30 PM
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maybe get some more details about the ''blown up'' motor... it may have overspun the pump... hopefully not!!!!!
 
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Old Jul 6, 2011 | 07:42 PM
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Originally Posted by H.R.D
This cat maybe able to help you out.

https://www.dieselbombers.com/1st-ge...pump-swap.html
X2 thanks.
 
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Old Jul 7, 2011 | 01:11 AM
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Originally Posted by kieron_kohlmann
X2 thanks.
 
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Old Jul 7, 2011 | 09:38 AM
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Default Re: P-Pump questions

Well technically its not blown up its just knockin

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Old Jul 7, 2011 | 12:57 PM
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Default Re: P-Pump questions

And i've heard about injector sleeves because the new 12 valves have smaller injectors and will the pump bolt right up?


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Old Jul 7, 2011 | 05:23 PM
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IIRC you are going to need new sleeves for the injectors. If you do a search for P-pump conversion I'm sure you'll come up with a lot of good info. Kieron's write up is a good one, but his isn't the only one. There may even be something in the sticky about it.
 
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Old Jul 8, 2011 | 08:42 AM
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Originally Posted by KD93
IIRC you are going to need new sleeves for the injectors. If you do a search for P-pump conversion I'm sure you'll come up with a lot of good info. Kieron's write up is a good one, but his isn't the only one. There may even be something in the sticky about it.
There is a very good write up in the sticky, which is more step by step. It makes a pretty good guide, but its by no means 100%. The main thing is to get a second gen engine in front of you so you can visualize what the result will be. In my opinion it wasn't very hard once you get all the parts. and yes injectors have to get new bodies to accept the different size line nuts.
 
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