Governor Adjustment

rafterv3 · 07-12-2006, 10:58 PM

I wish to increase the governor speed on a 1995 cummins diesel engine that is a boat application. If you have any ideas that would be great.

Thanks
rafterv3

***Tom05*** · 07-13-2006, 07:44 PM

The best way would be to install a 3GSK or even a 4GSK with the 60lb exhaust springs.
Tom

__________________
www.midwestdieselconnection.com

oldsmokey94 · 07-14-2006, 11:07 PM

what kind of boat is it in??

__________________
'97 black dually 180 pump, 64mm/80mm twins, helix II, cooltwist IC, 435's, lasercuts, .093 lines & holders, 4k gsk,custom rack plug, E.D. Ext. WG,

***got...DIESEL?*** · 07-17-2006, 05:16 AM

If it's a true marine engine, it could have the zexel pump and not the bosch...so be careful when taking advice....let us know which pump it is and we'll steer ya in the right direction.

Chris

__________________

In NW Florida? Get a hold of me...it's time Dodge makes it statement in these parts!!

'95 2500 Std Cab 4X4... DTT billet trans and billet triple disc, billet flexplate, compound turbos, AEM Dryflow, 160 pump, custom plate, 191's, EDM370's, peaked and tweaked AFC, rack control plug, 20*, 3K, head studs, marine +.020 HG, Water/meth

rafterv3 · 08-02-2006, 02:21 PM

The engine was out of a 1995 dodge truck, and I have put a water pump on it for a heat exchanger

Quote:

The best way would be to install a 3GSK or even a 4GSK with the 60lb exhaust springs.
Tom

What is a 3GSK or a 4GSK?

Isn't it possible to just tweak the governor?

oldsmokey94 · 08-02-2006, 04:14 PM

a gsk is a governor spring kit.
a 3k gsk will let the pump fuel untill about 3200 rpms
a 4k gsk will allow the pump to fuel untill about 3800-4000 rpms.
This is the most reliable way to increase the rpms that a cummins will put out.

__________________
'97 black dually 180 pump, 64mm/80mm twins, helix II, cooltwist IC, 435's, lasercuts, .093 lines & holders, 4k gsk,custom rack plug, E.D. Ext. WG,

***got...DIESEL?*** · 08-02-2006, 04:29 PM

you can buy a governor spring kit (GSK), or do your own. I assume the 2300 defuel start is affecting your top end? On the side of the pump right below and under the run solenoid, you will find a large hex plug...22mm...under here is access to the spring packs, 2 of them 180* apart. With a venier caliper, measure the stud protrusion above the center nut which is cut with a screwdriver type head. Once you have this measurement (prolly between .035 and .050) remove the nut. It has a lock built into it that ratchets the nut every 1/4 turn. Either click it down two more clicks, or 180 degrees, or remove it and place a washer that measures no more than 1 inch in diameter with a 1/2" hole in the center, and about .050 thick uunder the ratainer that is under the nut. If the washer method is chosen, re-install the nut to the same depth it was before you removed it and try it out. If you choose the "tighten the nut" method, you'll find it may not start without a little throttle, as the idle spring is now preventing some idle rack travel due to the increased spring tension. They both have their pro's and cons, oh and the con for the washer method is that the fuel curve is much quicker and it will not hold a no-load throttle setting above 1200 rpm without racing up to 1800. With a load you will not notice this though, but out of gear you will. A store bought 3K GSK still involves removing the nut and retainer, but replaces the three inner springs with new ones, and retains the outer idle spring.

Chris

__________________

In NW Florida? Get a hold of me...it's time Dodge makes it statement in these parts!!

'95 2500 Std Cab 4X4... DTT billet trans and billet triple disc, billet flexplate, compound turbos, AEM Dryflow, 160 pump, custom plate, 191's, EDM370's, peaked and tweaked AFC, rack control plug, 20*, 3K, head studs, marine +.020 HG, Water/meth

oldsmokey94 · 08-02-2006, 04:39 PM

there ya go!!!

thumbs up Chris

__________________
'97 black dually 180 pump, 64mm/80mm twins, helix II, cooltwist IC, 435's, lasercuts, .093 lines & holders, 4k gsk,custom rack plug, E.D. Ext. WG,

johnnychimpo · 08-02-2006, 06:07 PM

Quote:

Originally Posted by oldsmokey94

there ya go!!!

thumbs up Chris

yeah, no kiddin'! that was the best step by step for a governor mod i've ead yet. I might even be able to figure that out. good job dude.

***got...DIESEL?*** · 08-02-2006, 08:19 PM

I figured I'd better mention after doing one spring pack mod, to roll the engine 180* and do the other one....there are two sets and they both should be done as evenly as possible within a few thousands of stud.

Chris

__________________

In NW Florida? Get a hold of me...it's time Dodge makes it statement in these parts!!

'95 2500 Std Cab 4X4... DTT billet trans and billet triple disc, billet flexplate, compound turbos, AEM Dryflow, 160 pump, custom plate, 191's, EDM370's, peaked and tweaked AFC, rack control plug, 20*, 3K, head studs, marine +.020 HG, Water/meth

07-12-2006, 10:58 PM	#1 (permalink)
rafterv3 Newbie Join Date: Jul 2006 Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts rafterv3's Truck Pics	Governor Adjustment I wish to increase the governor speed on a 1995 cummins diesel engine that is a boat application. If you have any ideas that would be great. Thanks rafterv3

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Remove Advertisements Sponsored Links
Dodge Cummins Diesel Forum Advertisement

07-13-2006, 07:44 PM	#2 (permalink)
*Tom05* Diesel Head Join Date: Dec 2005 Posts: 4,429 Thanks: 0 Thanked 3 Times in 3 Posts Tom05's Truck Pics	The best way would be to install a 3GSK or even a 4GSK with the 60lb exhaust springs. Tom __________________ www.midwestdieselconnection.com

07-14-2006, 11:07 PM	#3 (permalink)
oldsmokey94 Diesel Head Join Date: Feb 2006 Location: tx Posts: 1,407 Thanks: 0 Thanked 0 Times in 0 Posts oldsmokey94's Truck Pics	what kind of boat is it in?? __________________ '97 black dually 180 pump, 64mm/80mm twins, helix II, cooltwist IC, 435's, lasercuts, .093 lines & holders, 4k gsk,custom rack plug, E.D. Ext. WG,

07-17-2006, 05:16 AM	#4 (permalink)
*got...DIESEL?* Diesel Freak Join Date: Jan 2006 Location: Panama City (Lynn Haven), FL Posts: 869 Thanks: 0 Thanked 1 Time in 1 Post got...DIESEL?'s Truck Pics	If it's a true marine engine, it could have the zexel pump and not the bosch...so be careful when taking advice....let us know which pump it is and we'll steer ya in the right direction. Chris __________________ In NW Florida? Get a hold of me...it's time Dodge makes it statement in these parts!! '95 2500 Std Cab 4X4... DTT billet trans and billet triple disc, billet flexplate, compound turbos, AEM Dryflow, 160 pump, custom plate, 191's, EDM370's, peaked and tweaked AFC, rack control plug, 20*, 3K, head studs, marine +.020 HG, Water/meth

08-02-2006, 04:14 PM	#6 (permalink)
oldsmokey94 Diesel Head Join Date: Feb 2006 Location: tx Posts: 1,407 Thanks: 0 Thanked 0 Times in 0 Posts oldsmokey94's Truck Pics	a gsk is a governor spring kit. a 3k gsk will let the pump fuel untill about 3200 rpms a 4k gsk will allow the pump to fuel untill about 3800-4000 rpms. This is the most reliable way to increase the rpms that a cummins will put out. __________________ '97 black dually 180 pump, 64mm/80mm twins, helix II, cooltwist IC, 435's, lasercuts, .093 lines & holders, 4k gsk,custom rack plug, E.D. Ext. WG,

08-02-2006, 04:29 PM	#7 (permalink)
*got...DIESEL?* Diesel Freak Join Date: Jan 2006 Location: Panama City (Lynn Haven), FL Posts: 869 Thanks: 0 Thanked 1 Time in 1 Post got...DIESEL?'s Truck Pics	you can buy a governor spring kit (GSK), or do your own. I assume the 2300 defuel start is affecting your top end? On the side of the pump right below and under the run solenoid, you will find a large hex plug...22mm...under here is access to the spring packs, 2 of them 180* apart. With a venier caliper, measure the stud protrusion above the center nut which is cut with a screwdriver type head. Once you have this measurement (prolly between .035 and .050) remove the nut. It has a lock built into it that ratchets the nut every 1/4 turn. Either click it down two more clicks, or 180 degrees, or remove it and place a washer that measures no more than 1 inch in diameter with a 1/2" hole in the center, and about .050 thick uunder the ratainer that is under the nut. If the washer method is chosen, re-install the nut to the same depth it was before you removed it and try it out. If you choose the "tighten the nut" method, you'll find it may not start without a little throttle, as the idle spring is now preventing some idle rack travel due to the increased spring tension. They both have their pro's and cons, oh and the con for the washer method is that the fuel curve is much quicker and it will not hold a no-load throttle setting above 1200 rpm without racing up to 1800. With a load you will not notice this though, but out of gear you will. A store bought 3K GSK still involves removing the nut and retainer, but replaces the three inner springs with new ones, and retains the outer idle spring. Chris __________________ In NW Florida? Get a hold of me...it's time Dodge makes it statement in these parts!! '95 2500 Std Cab 4X4... DTT billet trans and billet triple disc, billet flexplate, compound turbos, AEM Dryflow, 160 pump, custom plate, 191's, EDM370's, peaked and tweaked AFC, rack control plug, 20*, 3K, head studs, marine +.020 HG, Water/meth

08-02-2006, 04:39 PM	#8 (permalink)
oldsmokey94 Diesel Head Join Date: Feb 2006 Location: tx Posts: 1,407 Thanks: 0 Thanked 0 Times in 0 Posts oldsmokey94's Truck Pics	there ya go!!! thumbs up Chris __________________ '97 black dually 180 pump, 64mm/80mm twins, helix II, cooltwist IC, 435's, lasercuts, .093 lines & holders, 4k gsk,custom rack plug, E.D. Ext. WG,

08-02-2006, 08:19 PM	#10 (permalink)
*got...DIESEL?* Diesel Freak Join Date: Jan 2006 Location: Panama City (Lynn Haven), FL Posts: 869 Thanks: 0 Thanked 1 Time in 1 Post got...DIESEL?'s Truck Pics	I figured I'd better mention after doing one spring pack mod, to roll the engine 180* and do the other one....there are two sets and they both should be done as evenly as possible within a few thousands of stud. Chris __________________ In NW Florida? Get a hold of me...it's time Dodge makes it statement in these parts!! '95 2500 Std Cab 4X4... DTT billet trans and billet triple disc, billet flexplate, compound turbos, AEM Dryflow, 160 pump, custom plate, 191's, EDM370's, peaked and tweaked AFC, rack control plug, 20*, 3K, head studs, marine +.020 HG, Water/meth