Author Topic: Governor mod question  (Read 11200 times)

Reply #15April 10, 2007, 05:25:16 am

jimfoo

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Governor mod question
« Reply #15 on: April 10, 2007, 05:25:16 am »
Well, if Named TinTin's way does the same thing with better driveability, then some one should put that in the FAQ, probably at the beginning of the governor mod thread, IMHO.
Jim
1966 Land-Rover 88" with 1.9 1Z which has been transformed to an M-TDI
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Reply #16April 10, 2007, 11:34:50 pm

carrizog60

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Governor mod question
« Reply #16 on: April 10, 2007, 11:34:50 pm »
and for my question?
not to raise the rev limiter too much and have "all2 fuel to that point?
vw golf gti G60--vw passat 1.9td gt2052v
yamaha vmax 1200- yamaha tdm 850
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Reply #17April 11, 2007, 06:56:39 pm

rallydiesel

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Governor mod question
« Reply #17 on: April 11, 2007, 06:56:39 pm »
I have another related question.

I tried the max fuel adjustment today and according to the FAQ, I was supposed to back the idle stop screw right out and then adjust the max fuel screw so I had an idle at around 1200 rpm. Well, I did this and I had some nice uncontrollable high rpm runaway. Only way I could get the rpms to drop was to bog it in a high gear or turn off the engine. I also had MAJOR smoke.

I later backed off on the max fuel screw until I didn't get the runaway and then adjusted the idle stop screw to about 1200 rpm.

I just want to know, what causes the out of control revving. It seemed once I hit a certain rpm the revs started to climb uncontrollably. I thought the governor was supposed to prevent this? Has this car already had the governor mod done to it? I haven't cracked open the IP yet.
2006 Jetta TDI - gtb1749v, Malone 2, Frank's Titan 2 cam, VR6 clutch....
1991 Jetta TD - sold :(
2001 Golf TDI - Son's
1981 Rabbit - BEW tdi swap project

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Reply #18April 11, 2007, 07:03:45 pm

jtanguay

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Governor mod question
« Reply #18 on: April 11, 2007, 07:03:45 pm »
the faq says that too much smoke = bad... keep an eye on it.  

only adjust your fuel screw 1/4 turns and make note of how many you have done so you can always return to normal.  there is a point at which if you unscrew too much that the motor will want to runaway.


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Reply #19April 15, 2007, 03:53:43 pm

rob_sawl

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Governor mod question
« Reply #19 on: April 15, 2007, 03:53:43 pm »
i have unscrew too much that the motor  runaway but know i dont even know how much to srew it in ... i just dont know what to do my car just wont even start...please help
Jetta TD 94 BLACK

Reply #20April 15, 2007, 07:45:15 pm

rallydiesel

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Governor mod question
« Reply #20 on: April 15, 2007, 07:45:15 pm »
I had that problem. I thought I had the runaway under control but then I had trouble starting. After quite a bit of cranking, the engine started and I turned the screw in some more and made sure there was NO runaway even when running hot. It seemed the engine was not getting fuel for some reason. Maybe turning the fuel screw out too much lets air in after sitting for a few hours?
2006 Jetta TDI - gtb1749v, Malone 2, Frank's Titan 2 cam, VR6 clutch....
1991 Jetta TD - sold :(
2001 Golf TDI - Son's
1981 Rabbit - BEW tdi swap project

"ONCE YOU GO CLACK, YOU NEVER GO BACK"

Reply #21April 16, 2007, 11:22:06 am

Mr.Crossfire

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Governor mod question
« Reply #21 on: April 16, 2007, 11:22:06 am »
My goveror looks like this:


The upper one. :)

Revs 6500 without load, and is easy to drive. The breathing of the engine is not good enough, so I don't get much power after 4500. My engine is AAZ with 1.6td pump and kkk k24.

Reply #22April 16, 2007, 12:27:44 pm

jtanguay

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Governor mod question
« Reply #22 on: April 16, 2007, 12:27:44 pm »
what about the driveability? does it shudder at all in 1st or 2nd?


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Reply #23April 16, 2007, 02:48:49 pm

Tintin

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Governor mod question
« Reply #23 on: April 16, 2007, 02:48:49 pm »
Quote from: "Mr.Crossfire"
so I don't get much power after 4500


it's normal, these diesel engine do not have much power after 4200-4300rpm (include TDI)

A small shim on the main spring like the pic that I showed and it is perfect, that gives anything of exaggerates, it will not go more.

Reply #24April 16, 2007, 03:15:24 pm

935racer

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Governor mod question
« Reply #24 on: April 16, 2007, 03:15:24 pm »
I completely delete the intermediate spring and shim the main spring by about 2mm, revs to 6500 rpm and never had any shudder issues, I've done it  several times as well.

These engines can make plenty of power higher up in the rpm range with some good head porting and manifolds.

Reply #25April 17, 2007, 07:39:45 am

Mr.Crossfire

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« Reply #25 on: April 17, 2007, 07:39:45 am »
No shuddering or anything abnormal even at lower gears. Of course the accelerator pedal is more sensitive, more like a gasser feel. Only "problem" is that it is difficult to maintain steady rpm without load. Idle is fine, but if I press the acc. pedal on neutral gear, the revs keep climbing even if the pedal is held steady. But I don't see that as a big issue.

I am sure that good power would be produced on the higher revs, if the stock crappy manifolds are replaced with something proper, head porting, a bigger turbo etc.

Reply #26April 17, 2007, 03:27:42 pm

Tintin

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Governor mod question
« Reply #26 on: April 17, 2007, 03:27:42 pm »
Quote from: "Mr.Crossfire"
Of course the accelerator pedal is more sensitive....................... Only "problem" is that it is difficult to maintain steady rpm without load. Idle is fine, but if I press the acc. pedal on neutral gear, the revs keep climbing even if the pedal is held steady. But I don't see that as a big issue.


It's exactly the thing which I mentioned above. I rarely worked with small 9mm, that does not interest me, but, sure thing, with 11 and 12mm it really does not go well if you removes the intermediate spring, the symptom that you describe, is amplified much more,  that gives anything to remove it, and it is well to keep it.

Made what you want, it goes nevertheless, I do not write that to be obstinated me, I write only that because I tested it myself and it is what I noted.

Reply #27April 17, 2007, 06:59:32 pm

Black Smokin' Diesel

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Governor mod question
« Reply #27 on: April 17, 2007, 06:59:32 pm »


This is the one I modded a while ago, it's not installed yet. I followed the DIY thread on here. We'll see how it goes once installed. If something's wrong it's a 10min job to fix.
91 Passat syncro 1.8T swapped.

Reply #28April 18, 2007, 04:23:11 am

foxracer1

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Governor mod question
« Reply #28 on: April 18, 2007, 04:23:11 am »
Black Smokin' Diesel I shimmed mine that much and it ws way to much. It overfueled it way to much to early.

It seems get rid of the intermediate spring then shim the main spring just a little with 2 small washers works the best for me.
84 4dr Rabbit 1.6 N/A sold to friend
86 Jetta TD getting raced out AHU 02A
98 Jetta TDI Malone tune stg 3
91 S10 305 TPI T56
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Reply #29April 18, 2007, 02:18:28 pm

Black Smokin' Diesel

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Governor mod question
« Reply #29 on: April 18, 2007, 02:18:28 pm »
Quote from: "foxracer1"
Black Smokin' Diesel I shimmed mine that much and it ws way to much. It overfueled it way to much to early.

It seems get rid of the intermediate spring then shim the main spring just a little with 2 small washers works the best for me.


Hmmm I think I'll try something thinner to shim the main spring then.
91 Passat syncro 1.8T swapped.