5.9L Rotary Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps Related To Performance And Longevity

Idle adjust

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  #1  
Old 01-19-2009, 11:59 AM
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Default Idle adjust

How do i adjust the idle my 92. i turned up the pump about 1 1/2 turns and now it idles a little to high.
 
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Old 01-19-2009, 03:42 PM
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The screw will be on the in-board side of the pump. Kinda a pain to get to it. You can tell which one it is by looking at thearm fro the throttle and you can see the screw it rests on. Might as well take the top off the pump and flip it around so that you can adjust it easy.
 
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Old 05-01-2009, 11:52 AM
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ya adjusting idles isnt that hard, it is just frustratin.. TIP*** adjust it with the truck running. it saves time.
 
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Old 05-01-2009, 08:58 PM
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I don't understand how it's easier to adjust the idle with the screw flipped over.

I use a 1/4" wrench. I don't know why it works, but it does. I can run the low idle screw all the way in or out within a few minutes with a 1/4" wrench.
 
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Old 05-01-2009, 09:25 PM
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Its easier to get to it Begle
 
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Old 05-02-2009, 12:38 AM
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I don't see how, with the throttle and timing cover still in the way it's not that much easier.

1/4" wrench or little ratcheting 90 degree screwdriver.

Really, if you spray it down with brake cleaner, it should be really easy to turn. They're loose threads.
 
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Old 05-02-2009, 05:57 AM
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Mine was 10x eaiser to get to becayse all my injection lines were in the way. you just hold teh throttle open with one hand and adjust with the other.
 
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Old 05-03-2009, 01:23 AM
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I was able to carefully fiddle a medium sized screwdriver in thru the injector lines to back off my idle screw.
 
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