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Author Topic: 2010 Edition of the Governor Mod  (Read 121587 times)

Reply #210June 03, 2015, 11:17:38 pm

vwzzuk

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Re: 2010 Edition of the Governor Mod
« Reply #210 on: June 03, 2015, 11:17:38 pm »
I'm wondering if my fuel screw moved somehow inside the stainless crimp collar that keeps it from moving. After I took the shims out (back to stock) and reassembled the pump, I noticed it had higher RPM idle than before when I messed with the shims. I noticed later that it was moveable in the crimp. Odd since they are lightly spot welded to keep the screw from turning. This is a rebuilt pump with paint on the fuel screw so it wasn't messed with by me...or at least not knowingly.

Perhaps it is a combination of too much shim (I measured with my caliper at 3.48mm's) and the fuel screw turned in too much somehow.
When the shims were in place, when I backed off the fuel screw to lower the rpms, the idle personality was weird. It wouldn't stabilize after a small rev or from a shut-off the engine to start engine scenario.

Maybe I should try 3mm minimum shimming?

My understanding is that you can shim it from 3mm to 5mm and its supposed to be fine.

So, if it idled weird with 3.48mm shims would the idle be different with a smaller shim size?

-dave
--Dave

82 Rabbit Pickup, 1.6NA
91 Jetta, 1.6NA
87 Samurai, 1.9TD AAZ
92 Sidekick, 1.6TD

Reply #211June 03, 2015, 11:20:29 pm

vanbcguy

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Re: 2010 Edition of the Governor Mod
« Reply #211 on: June 03, 2015, 11:20:29 pm »
The pump cover has some play around its mounting bolts. Since the governor lever is attached to the bottom of the pump and the screw is attached to the top you always have to reset it after taking the cover off. It's also a hell of a lot easier to get the cover on with the fuel screw backed out.

Same thing is true of the idle adjustment. Very small changes in the cover position can have substantial impact on the pump settings.
Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #212June 03, 2015, 11:33:28 pm

vwzzuk

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Re: 2010 Edition of the Governor Mod
« Reply #212 on: June 03, 2015, 11:33:28 pm »
Would a Fast Idle pump(like mine) be different than the standard cold start pump with regard to shimming?
--Dave

82 Rabbit Pickup, 1.6NA
91 Jetta, 1.6NA
87 Samurai, 1.9TD AAZ
92 Sidekick, 1.6TD

Reply #213June 04, 2015, 02:07:10 pm

vanbcguy

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Re: 2010 Edition of the Governor Mod
« Reply #213 on: June 04, 2015, 02:07:10 pm »
Nope.  I've shimmed both setups, everything is the same.  The main spring only comes in to play at high RPM, it can't cause a high idle on its own.
Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #214March 18, 2016, 12:57:49 pm

92EcoDiesel Jetta

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Re: 2010 Edition of the Governor Mod
« Reply #214 on: March 18, 2016, 12:57:49 pm »
I'm a bit late but it looks to me the idle spring (right side of pic) is missing. Anyone else notice that?


Compare to the 2 governors in my pic





OK, figured out how to upload pics using photo bucket.

Here's pictures before and after the shims:

http://s423.photobucket.com/user/I-XSLR8/media/Shimmed3.48mm.jpg.html?sort=3&o=1
http://s423.photobucket.com/user/I-XSLR8/media/4c2127fa-ebd7-4173-967b-005c9d50b6ca.jpg.html?sort=3&o=0
« Last Edit: March 18, 2016, 10:42:51 pm by 92EcoDiesel Jetta »

Reply #215March 18, 2016, 05:29:12 pm

vanbcguy

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Re: 2010 Edition of the Governor Mod
« Reply #215 on: March 18, 2016, 05:29:12 pm »
Pumps with dual idle speed (ones with the external arm with two idle speed adjust screws) use a completely separate free spring from the idle lever to the governor lever.

Sent from my XT1097 using Tapatalk

Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #216March 18, 2016, 10:03:51 pm

92EcoDiesel Jetta

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Re: 2010 Edition of the Governor Mod
« Reply #216 on: March 18, 2016, 10:03:51 pm »
Pumps with dual idle speed (ones with the external arm with two idle speed adjust screws) use a completely separate free spring from the idle lever to the governor lever.

Sent from my XT1097 using Tapatalk



Can you post a pic of such a pump? What year and model has this? My Ecodiesel has a cold start lever for high idle/advance. Is that considered dual idle speed adjust?

Reply #217March 18, 2016, 10:32:39 pm

vanbcguy

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Re: 2010 Edition of the Governor Mod
« Reply #217 on: March 18, 2016, 10:32:39 pm »
I think any pump after about 1985 or so has the 2 speed idle. Yea, if your idle speed increases when you pull the cold start lever you have the 2 speed system.

Sent from my XT1097 using Tapatalk
Bryn

1994 Jetta - AHU M-TDI - Jezebel Jetta
2004 Jetta Wagon - 1.8T - Blitzen

Reply #218March 18, 2016, 10:45:32 pm

92EcoDiesel Jetta

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Re: 2010 Edition of the Governor Mod
« Reply #218 on: March 18, 2016, 10:45:32 pm »
I think any pump after about 1985 or so has the 2 speed idle. Yea, if your idle speed increases when you pull the cold start lever you have the 2 speed system.

Sent from my XT1097 using Tapatalk


So my 92 Eco has the 2 speed system. I just updated post #214 with a pic of my governor. Can you see the idle spring he is missing compared to mine?

Reply #219August 27, 2017, 03:49:09 pm

caddycraig

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Re: 2010 Edition of the Governor Mod
« Reply #219 on: August 27, 2017, 03:49:09 pm »
Hi, im looking at doing the governor spring mod and this seems to be the best thread to tell me how, annoyingly none of the photos show up  :'( it just says 'please update your account to enable third party hosting'. looking into it it seems photobucket have changed there services and this has happened to alot of websites, is there any other way of seeing the photos or another thread to show me how to carry out the governor mod?

Thanks

Craig

Reply #220October 22, 2017, 01:18:04 pm

Marzocchi

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Re: 2010 Edition of the Governor Mod
« Reply #220 on: October 22, 2017, 01:18:04 pm »
Same issue here.
Does anyone know if there's still a tutorial online for the Landrover 300 tdi pump governor mod? Thanks!

Reply #221January 05, 2019, 01:08:37 pm

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