Running No Plate

Don Wagner · 03-02-2009, 03:39 AM

It came to my attention that there are many myths concerning pump failures and the rack hanging while using no fuel plate. First off this is false, there are many reasons for a rack to stick or a pump failure, but not using a fuel plate is not one of them. The following pictures show an RQV-K governor being disassembled. As you can see there is no "pin" that can break due to not running a fuel plate.

Last edited by Don Wagner : 03-02-2009 at 04:21 AM.

cursedtofirst45 · 03-02-2009, 03:45 AM

Thanks Don.

Ive always thought that if people could see how these pumps work and could see inside one, we'd have less of those threads.

__________________
1997 Dodge 2500 Cummins/Nv4500.
Project Yeti II 12v Sleeper
ACDC "No Box or Bottle, just Balls and Throttle"

Don Wagner · 03-02-2009, 03:46 AM

When running without a fuel plate the governor lever will still contact the AFC lever. If the lever is modified for extended travel the limiting factor will be the rack plug no matter it being the stock 2000 plug or the 2095 plug which is 2mm deeper.

Front rack stop.

Rear rack linkage.

Last edited by Don Wagner : 03-02-2009 at 03:49 AM.

Don Wagner · 03-02-2009, 03:48 AM

As far as a runaway condition, the sliding bolt(pic#3 post#1) pulls the governor lever back limiting RPM. There is no way to "over extend" the rack also since either the AFC lever or the rack plug limit rack travel.

Last edited by Don Wagner : 03-02-2009 at 03:54 AM.

Don Wagner · 03-02-2009, 04:27 AM

1. fuel plate
2. rack
3. governor nut
4. governor spring
5. flyweight
6. governor rocker
7. control lever
8. plate cam
9. guide block
10. governor lever
11. sliding block
12. bell crank
13. sliding bolt
14. guide lever

Last edited by Don Wagner : 03-02-2009 at 04:50 AM.

smkstk · 03-02-2009, 04:30 AM

very nice post, about time we get one of these, but i'm partial to tune the truck with the plate still. good write up

__________________
Global climate change is natural phenomenon, exploited by the unscrupulous, for political and monetary gain.

schaef_12 · 03-02-2009, 11:41 AM

Please make this a sticky, so the No fuel plate threads can finally come to and end!!

__________________
1998 2 Tone

12 valve Club Cab SWB, Helix II, PDP head ported polished, fire-ringed, 5 angle back cut valves,60lb springs, Custom plate forward, DDP4's, sps62, ATS 3-piece pulse manifold, ceramic clutch, 913 pump, 5" Skyjacker with 35X12.50 Toyo's

mondtster · 03-02-2009, 12:25 PM

Quote:

Originally Posted by Don Wagner

When running without a fuel plate the governor lever will still contact the AFC lever. If the lever is modified for extended travel the limiting factor will be the rack plug no matter it being the stock 2000 plug or the 2095 plug which is 2mm deeper.

This is slightly off topic, but what is the best way to verify that you are getting full rack travel when modifying the AFC lever?

Don Wagner · 03-02-2009, 03:50 PM

The best way to verify full travel is measuring rack travel through the front rack plug with the AFC installed, the pump needs to be removed to accomplish this.

ykdave · 03-02-2009, 11:33 PM

about time we had a good post like this!

__________________
97 Ram 2500 / 5.9ctd /NV4500/241DHD
Custom Intake Tube+ BHAF, Pump Tuning, Autometer Pyro and Boost gauges, Dual 4" stacks, 33x12.5 Mud terrains, posi-lok, One Hella sound system, tons more to come

crazyrunner33 · 03-03-2009, 12:59 AM

Already took out the plate this morning for my first mod since I don't have any access to a bench grinder yet.

__________________
'99 Cummins: too many mods to list

Some tips on using the search function for better results.

Cummins35.9 · 03-03-2009, 01:09 AM

Finally no more explaining...

__________________
1988 gmc 3500 12v, GT3788 BB, 3pc mainfold, SB 3600# 12CB DD, Cmp p-pump(440ccs), 191s, 4gsk, no plate, 2095 plug, 18* timing, 60gph pump, #60 springs, 5x0.17 sticks, Afe pro dry, 7" Bullhaulers, Glowshift, 453hp 1007ft/lbs

03-02-2009, 03:39 AM	#1 (permalink)
Don Wagner Banned Join Date: Jan 2007 Location: Not Quite Canadia Posts: 539 Thanks: 0 Thanked 7 Times in 4 Posts Don Wagner's Truck Pics	Running No Plate It came to my attention that there are many myths concerning pump failures and the rack hanging while using no fuel plate. First off this is false, there are many reasons for a rack to stick or a pump failure, but not using a fuel plate is not one of them. The following pictures show an RQV-K governor being disassembled. As you can see there is no "pin" that can break due to not running a fuel plate. Last edited by Don Wagner : 03-02-2009 at 04:21 AM.

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03-02-2009, 03:45 AM	#2 (permalink)
cursedtofirst45 Diesel Freak Join Date: Mar 2008 Location: gilbert, az Posts: 763 Thanks: 0 Thanked 0 Times in 0 Posts cursedtofirst45's Truck Pics	Thanks Don. Ive always thought that if people could see how these pumps work and could see inside one, we'd have less of those threads. __________________ 1997 Dodge 2500 Cummins/Nv4500. Project Yeti II 12v Sleeper ACDC "No Box or Bottle, just Balls and Throttle"

03-02-2009, 03:46 AM	#3 (permalink)
Don Wagner Banned Join Date: Jan 2007 Location: Not Quite Canadia Posts: 539 Thanks: 0 Thanked 7 Times in 4 Posts Don Wagner's Truck Pics	When running without a fuel plate the governor lever will still contact the AFC lever. If the lever is modified for extended travel the limiting factor will be the rack plug no matter it being the stock 2000 plug or the 2095 plug which is 2mm deeper. Front rack stop. Rear rack linkage. Last edited by Don Wagner : 03-02-2009 at 03:49 AM.

03-02-2009, 03:48 AM	#4 (permalink)
Don Wagner Banned Join Date: Jan 2007 Location: Not Quite Canadia Posts: 539 Thanks: 0 Thanked 7 Times in 4 Posts Don Wagner's Truck Pics	As far as a runaway condition, the sliding bolt(pic#3 post#1) pulls the governor lever back limiting RPM. There is no way to "over extend" the rack also since either the AFC lever or the rack plug limit rack travel. Last edited by Don Wagner : 03-02-2009 at 03:54 AM.

03-02-2009, 04:27 AM	#5 (permalink)
Don Wagner Banned Join Date: Jan 2007 Location: Not Quite Canadia Posts: 539 Thanks: 0 Thanked 7 Times in 4 Posts Don Wagner's Truck Pics	1. fuel plate 2. rack 3. governor nut 4. governor spring 5. flyweight 6. governor rocker 7. control lever 8. plate cam 9. guide block 10. governor lever 11. sliding block 12. bell crank 13. sliding bolt 14. guide lever Last edited by Don Wagner : 03-02-2009 at 04:50 AM.

03-02-2009, 04:30 AM	#6 (permalink)
smkstk Diesel Head Join Date: Jan 2008 Location: Rapid City Michigan Posts: 3,132 Thanks: 5 Thanked 17 Times in 17 Posts smkstk's Truck Pics	very nice post, about time we get one of these, but i'm partial to tune the truck with the plate still. good write up __________________ Global climate change is natural phenomenon, exploited by the unscrupulous, for political and monetary gain.

03-02-2009, 11:41 AM	#7 (permalink)
schaef_12 Cummins Enthusiast Join Date: Mar 2007 Location: Moscow Idaho Posts: 221 Thanks: 2 Thanked 0 Times in 0 Posts schaef_12's Truck Pics	Please make this a sticky, so the No fuel plate threads can finally come to and end!! __________________ 1998 2 Tone 12 valve Club Cab SWB, Helix II, PDP head ported polished, fire-ringed, 5 angle back cut valves,60lb springs, Custom plate forward, DDP4's, sps62, ATS 3-piece pulse manifold, ceramic clutch, 913 pump, 5" Skyjacker with 35X12.50 Toyo's

03-02-2009, 03:50 PM	#9 (permalink)
Don Wagner Banned Join Date: Jan 2007 Location: Not Quite Canadia Posts: 539 Thanks: 0 Thanked 7 Times in 4 Posts Don Wagner's Truck Pics	The best way to verify full travel is measuring rack travel through the front rack plug with the AFC installed, the pump needs to be removed to accomplish this.

03-02-2009, 11:33 PM	#10 (permalink)
ykdave Diesel Head Join Date: Feb 2008 Location: Yellowknife, NT, Canada Posts: 3,852 Thanks: 0 Thanked 76 Times in 62 Posts ykdave's Truck Pics	about time we had a good post like this! __________________ 97 Ram 2500 / 5.9ctd /NV4500/241DHD Custom Intake Tube+ BHAF, Pump Tuning, Autometer Pyro and Boost gauges, Dual 4" stacks, 33x12.5 Mud terrains, posi-lok, One Hella sound system, tons more to come

03-03-2009, 12:59 AM	#11 (permalink)
crazyrunner33 Sasquatch Join Date: Sep 2008 Location: Michigan City, why's it in Indiana? Posts: 865 Thanks: 56 Thanked 28 Times in 18 Posts crazyrunner33's Truck Pics	Already took out the plate this morning for my first mod since I don't have any access to a bench grinder yet. __________________ '99 Cummins: too many mods to list Some tips on using the search function for better results.

03-03-2009, 01:09 AM	#12 (permalink)
Cummins35.9 Cummins Nut Join Date: Feb 2007 Posts: 385 Thanks: 3 Thanked 2 Times in 2 Posts Cummins35.9's Truck Pics	Finally no more explaining... __________________ 1988 gmc 3500 12v, GT3788 BB, 3pc mainfold, SB 3600# 12CB DD, Cmp p-pump(440ccs), 191s, 4gsk, no plate, 2095 plug, 18* timing, 60gph pump, #60 springs, 5x0.17 sticks, Afe pro dry, 7" Bullhaulers, Glowshift, 453hp 1007ft/lbs