Governor Spring Install w/ Pics! - Dodge Cummins Diesel Forum
94-98 Performance Tech articles dealing with gaining power from the 2nd gen 12V engine

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post #1 of 14 (permalink) Old 02-27-2010, 12:58 PM Thread Starter
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Governor Spring Install w/ Pics!

3000 and 4000 RPM Governor Spring Install with Pictures

By: 12valveterror

What you need:
10mm socket
15mm socket(to turn engine via harmonic balancer bolts)
8mm socket
7/8" socket
screwdriver assortment
pencil magnet
needle nose pliers

First intake and intake tube must be removed from the truck.

Next the fuel shutdown solenoid must be removed. There are 3 bolts. They are 8mm, 2 are at the AFC housing and one is on the backside of the pump.





Next remove the cotter pin holding the shut down solenoid arm to the pump. As well as the 8mm bolt holding this arm to the pump(see pic) notice once that arm is removed there is a small key pin to keep that arm aligned, do not lose it.





With all that removed you can now get to the 7/8" plug which you will be working out of. Remove the plug



This is the bowl o parts thus far:



Now you will see the inside of the pump, oil probably will come out just an fyi.



Next turn the engine(either alternator or harmonic balancer bolts) over to expose first spring assembly.



It will look like this:



Next you need to measure the distance from the top of the stud, to the top of the adjusting nut. It should be between .040"-.050"



Once measured you can then remove the nut, using a screw driver and the upper spring seat using a magnet.





It will look like this now:



Now you will see all 4 springs. I removed them all at once with a good magnet,, but beware of the shims at the bottom. I had 3 in mine.





Once springs and shims are removed you will then be left with the lower spring seat which stock is 2 piece. this is sitting all the way at the bottom of the stud, use a magnet to remove.



Once that is done, you will install new one piece spring seat first, then slide all 4 springs on the stud, put the upper spring seat back on and adjustment nut, tighten back down to original measurement or between .040"-.050".

Turn the engine over to reveal second set and repeat.

Once other set is done, reinstall plug, shut down solenoid bolts and linkage.



Then install intake and tube, fire it up an enjoy.


Engine: Mahle "Marine" Pistons, Balanced Rotating Assembly, ECD Cam, O-Ringed Block, Ported/O-Ringed Head, 3 Angle Valve Job, ATI SuperDamper
Fuel/Air: 475cc P-Pump, 5x.014's, Airdog 150, BW 66/68/14

Last edited by Cowboy303; 11-13-2017 at 05:38 PM. Reason: relinked dead images
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post #2 of 14 (permalink) Old 02-27-2010, 01:08 PM
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Next remove the cotter pin holding the shut down solenoid arm to the pump. As well as the 8mm bolt holding this arm to the pump(see pic) notice once that arm is removed there is a small key pin to keep that arm aligned, do not lose it.





you actually dont need to take this off, all you have to take out is the cotter pin and take off the fuel shut down solenoid, if you turn it all the way to the right, clockwise, you have just enough room to get the plug off, just a lil less things to take off, and you wont have to worry about aligning it back up

Some stuff to make it go faster than stock (I hope)

Last edited by Cowboy303; 11-13-2017 at 05:39 PM. Reason: relink dead images
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post #3 of 14 (permalink) Old 02-27-2010, 01:10 PM Thread Starter
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Yea i know you dont need to take it off but it makes life easier and more visibility, it took less than a minute to pull it off so no harm no foul just a little more room.

Engine: Mahle "Marine" Pistons, Balanced Rotating Assembly, ECD Cam, O-Ringed Block, Ported/O-Ringed Head, 3 Angle Valve Job, ATI SuperDamper
Fuel/Air: 475cc P-Pump, 5x.014's, Airdog 150, BW 66/68/14
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post #4 of 14 (permalink) Old 02-27-2010, 01:58 PM
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What exactly are you measuring with the caliper? You cant see that close in the pic.

97 RCLB/Auto, AFC spring, 3000 GSK, #11 Plate, 4" Exhaust, PVCI.
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post #5 of 14 (permalink) Old 02-27-2010, 03:09 PM Thread Starter
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in this pic you are measuring the distance between 1 and 2 aka the stud and the adjusting nut


Engine: Mahle "Marine" Pistons, Balanced Rotating Assembly, ECD Cam, O-Ringed Block, Ported/O-Ringed Head, 3 Angle Valve Job, ATI SuperDamper
Fuel/Air: 475cc P-Pump, 5x.014's, Airdog 150, BW 66/68/14

Last edited by Cowboy303; 11-13-2017 at 05:39 PM. Reason: relink dead image
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post #6 of 14 (permalink) Old 02-27-2010, 08:31 PM
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Thanks for an awesome write up! Could you just clarify: you are measuring the distance from the top of the stud to the upper seat, correct? how it is that you are able to measure this?
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post #7 of 14 (permalink) Old 02-27-2010, 08:44 PM
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I dont measure stud protrusion. Initial click plus 4 more clicks for this guy
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post #8 of 14 (permalink) Old 02-28-2010, 04:08 AM
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Great post. Could have used this about three weeks ago. Lol

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post #9 of 14 (permalink) Old 02-28-2010, 02:04 PM Thread Starter
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Quote:
Originally Posted by ckolloff View Post
Thanks for an awesome write up! Could you just clarify: you are measuring the distance from the top of the stud to the upper seat, correct? how it is that you are able to measure this?

Thanks, no you are measuring the distance from the top of the stud to the nut(adjusting nut) not the upper spring seat. and you use a vernier calipers to measure this or like partyshortbusdriver said you can do it by the clicks, which is first click plus 4 more, i was aware of this way but i wanted to be sure i didnt screw anything up as this was my first time

Engine: Mahle "Marine" Pistons, Balanced Rotating Assembly, ECD Cam, O-Ringed Block, Ported/O-Ringed Head, 3 Angle Valve Job, ATI SuperDamper
Fuel/Air: 475cc P-Pump, 5x.014's, Airdog 150, BW 66/68/14

Last edited by 12valveterror; 02-28-2010 at 02:07 PM.
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post #10 of 14 (permalink) Old 02-28-2010, 02:05 PM Thread Starter
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Also could a mod move this to the tech article section!

Engine: Mahle "Marine" Pistons, Balanced Rotating Assembly, ECD Cam, O-Ringed Block, Ported/O-Ringed Head, 3 Angle Valve Job, ATI SuperDamper
Fuel/Air: 475cc P-Pump, 5x.014's, Airdog 150, BW 66/68/14
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post #11 of 14 (permalink) Old 03-01-2010, 11:07 AM Thread Starter
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Could a Mod Please Move This to the Tech Section!!

Engine: Mahle "Marine" Pistons, Balanced Rotating Assembly, ECD Cam, O-Ringed Block, Ported/O-Ringed Head, 3 Angle Valve Job, ATI SuperDamper
Fuel/Air: 475cc P-Pump, 5x.014's, Airdog 150, BW 66/68/14
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post #12 of 14 (permalink) Old 03-01-2010, 11:04 PM
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man am i the only one that installs gov. springs through the top of the pump?

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