Author Topic: Max fuel screw caused overrun, pls help  (Read 2800 times)

August 23, 2006, 12:25:24 am

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Max fuel screw caused overrun, pls help
« on: August 23, 2006, 12:25:24 am »
Hi all!

I have a Golf 1 Cabrio, and I putted in there a 1.6TD engine, with intercooler, custom downpipes, K&N air filter and remus.
In my previous car, it still had the intercooler, and I was turned the max fuel adjusting screw in, but when I mounted the engine in the cabrio, with the new downpipes, airfilter, and the intercooler mounted infront of the car, so it is cooling now better, it was necessary to let more fuel again. I turned the fuel screw again 1/2 turn, but the engine started to runaway (I turned immediately off the engine).

So my question is - is there any way to increase the fuel amount, without this governor mod (which seems to me too complicated)?
The pump should be able to deliver enough fuel for a 130hp car, is it something wrong with my pump, or maybe I did something wrong?
How can I let the maximum possible fuel, without risk of runaway?

My diesel was 'ecodiesel', so it don't have LDA.

Reply #1August 23, 2006, 12:03:24 pm

QuickTD

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Max fuel screw caused overrun, pls help
« Reply #1 on: August 23, 2006, 12:03:24 pm »
You need to back out the idle and residual screws as you turn in the max quantity screw or the idle will keep climbing.

Reply #2August 23, 2006, 11:36:44 pm

ACCELERATOR

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Max fuel screw caused overrun, pls help
« Reply #2 on: August 23, 2006, 11:36:44 pm »
I think I made everything fine now. It's smoking at full trottle below 2500rpm (which is normal for ecodiesel, because of the lack of LDA, so I should compensate this by pressing more gentle the accelerator), starting to clear over 2500 and almost none smoke between 3000-3500 rpm. I think it's the maximum for this pump, because I've adjusted the fuel screw just 1/4 turn before starting to keep high rpm (start to runaway).
Yesterday the guy, who was helping me, has accidently slackened the accelerator wire. So I was confused: the pump was set just before runaway, and the car was slower  :shock: Today I saw the reason, and everything looks fine now.
Surprisingly, but the cabrio is going a little faster, despite it's 100kg heavier than my Golf 2!  :twisted:
Thank you for the help!
I'm wondering - is there another diesel cabrio 1 in the forum?

Reply #3August 24, 2006, 07:59:56 pm

hillfolk'r

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Max fuel screw caused overrun, pls help
« Reply #3 on: August 24, 2006, 07:59:56 pm »
Quote from: QuickTD
You need to back out the idle and residual screws as you turn in the max quantity screw or the idle will keep climbing.





idont know how many times ive said this :roll:
Throttle cables ftw