Gov mod

[sherman306]

Can you do the Gov mod with the pump in the car?

[adamm306]

I imagine not lol

[shaverspeedengineering]

maybe if it was on a workbench "in" the boot... but defo not if its bolted up like ...

[zx_volcane]

Yes you can gov mod a pump without taking it off the car, quick and easy job too

[shaverspeedengineering]

Yes you can gov mod a pump without taking it off the car, quick and easy job too

my bad.. i thought there was no chance ...

[sherman306]

2 say no one says yes who has actually done it?

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Haha starting to belive zx then

[Danny2009]

Tom knows what he is on about mate you can do it on the car no problem

[zx_volcane]

Isn't there a guide somewhere?

You basically want to take the throttle plate off the top - 10mm nut holding it onto the spline.

Before you undo it scribe it inline with the spline on the top so its relative position is marked.

Whip it off and the spring and two round bits of spring locating plastic.


Then you want to undo the four hex bolts that hold the top hat onto the pump.

You may have to remove the two long stop screws to gain access.

Then you want to wind out the max fuel screw - again making note of how far it was wound in.

You should now be able to pop the top off, I find you have to hold the stop leaver on the front of the pump to one side for it to clear the gov cradle.

Now its time to do your gov mod - and in the famous words of haynes refitting is just the reversal of the above


Probably a good idea to cover the top of the pump with a sparkingly clean rag to stop any crap getting in while you have the top off.

Also those hex bolts are only nipped up, don't wind them right in mega tight when putting back together.

A new top hat seal might be a god idea, they have a tendency to leak after.

[sherman306]

Ah good its not too hard to do is it z

[Craigus]

Yeah you can, and its not too hard

[Frosty]

I did mine on my car. Got a bit stressed out but I got there in the end. It was first time I had taken a pump apart

[darrenjlobb]

Yeah no problem at all, if you have done it before takes under 5 minutes start to finish on the car

[anto]

If its your first time dong one, id have a good practise with a pump off the car first of all.
Then 2 points id make you aware of;

1) Make sure you dont lose the little cold idle spring
2) Snap off the part of the manual stop lever that is inside the pump as its a pain in the arse trying to refit the pump top with it still in place. It doesnt really serve much purpose anyway.

[Tom]

Yeah i done mine on the car and lost the cold idle spring, pain in the ass!

[Danny2009]

hardest bit is shimming it, ruins your hands trying to compress it. really need to invest in a vice

[sherman306]

I have use of a full garage workshop and tools so should be alright

[mikey b]

As above yes you can not to bad just take ya time when removing top and go steady

[Danny2009]

have a read through that mate will give you a idea how to gov mod it

[sherman306]

I've read the mod thread guide a few times so will just have to get on and do it

[Danny2009]

ahh be fine then

[Tom]

Hopefully you read the bit that said DONT FORCE ANYTHING << Theres no wiser words when it comes to fuel pumps, everything is delicate especially the governer cradle.

[sherman306]

Yeah that's what I'm worried about as I will.need it for work come Monday lol