-
#210
by
vwzzuk
on 03 Jun, 2015 23:17
-
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
-
#211
by
vanbcguy
on 03 Jun, 2015 23:20
-
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.
-
#212
by
vwzzuk
on 03 Jun, 2015 23:33
-
Would a Fast Idle pump(like mine) be different than the standard cold start pump with regard to shimming?
-
#213
by
vanbcguy
on 04 Jun, 2015 14:07
-
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.
-
#214
by
92EcoDiesel Jetta
on 18 Mar, 2016 12:57
-
-
#215
by
vanbcguy
on 18 Mar, 2016 17:29
-
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
-
#216
by
92EcoDiesel Jetta
on 18 Mar, 2016 22:03
-
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?
-
#217
by
vanbcguy
on 18 Mar, 2016 22:32
-
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
-
#218
by
92EcoDiesel Jetta
on 18 Mar, 2016 22:45
-
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?
-
#219
by
caddycraig
on 27 Aug, 2017 15:49
-
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
-
#220
by
Marzocchi
on 22 Oct, 2017 13:18
-
Same issue here.
Does anyone know if there's still a tutorial online for the Landrover 300 tdi pump governor mod? Thanks!
-
#221
by
zehair
on 20 Oct, 2019 05:48
-
Same issue here.
Does anyone know if there's still a tutorial online for the Landrover 300 tdi pump governor mod? Thanks!
I'm interested too !
