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-   -   Can't get my idle down (https://www.dieselbombers.com/1st-generation-dodge-cummins-89-93/96159-cant-get-my-idle-down.html)

1stgen12valve 05-15-2012 01:47 PM

Can't get my idle down
 
So I had to replace my pushrod cover last weekend and figured since I had the pump out I would tinker with it. I had already moved the timing up ran the screw into the collar and moved the fuel pin. I took off the collar on the fuel screw and ran it in alittle more. that made a world of differance I was getting smoke at full throttle and the truck really came alive, but it was very close to running away so I turned the screw in half a turn and that seemed to be the sweet spot. However the idle was crazy high I turn the idle screw down some and not much diffreance. I turned down again and still pretty high. I bumped the timing back alittle and that didnt help I really dont want to turn the screw back out. Is ther anything else i can do.

welderboy250 05-15-2012 08:22 PM

Reindex lever on shaft

BC847 05-15-2012 08:30 PM

Lengthen the rod that connects the injection pump's fuel lever to the throttle bellcrank (the one that looks like a tiny tie-rod). Just screw it out till the idle drops where you want it.

1stgen12valve 05-15-2012 09:41 PM

good idea why didnt I think of that
:jump:

Rusty89Cummins 05-15-2012 10:00 PM

if thats not enough you'll have to just back the fuel skrew out a little more.

diesel pap 05-15-2012 10:30 PM

i have saw fellers bend the plate where the idle screw hits. :w2:

moparbubbabt59l 05-16-2012 11:51 AM

Take out the screw all together lengthen the throttle linkage with the ball stud ends and move the stud to the other hole

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db Zac 05-16-2012 02:49 PM

is the idle stop on the leaver touching the casting yet? What I did was put both jam nuts on the back of the idle stop screw instead of having one at the front and once at the back.


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