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Model specific boards => Golf mk2 => Topic started by: cняis on 17 March 2010, 18:24

Title: MOT failure list (FAO Jay!) - fuel pump question
Post by: cняis on 17 March 2010, 18:24
Good Lord!!

Today it was MOT time for the mk2 VR6.

to summarise: 17 failures, 18 advisories, alarm went haywire during the experience and now it runs rough as ....!!!

Most of the failures are simple things like brake pipes not securely fitted, rear pads worn, rear wheel bearing noisey etc. The rear axles mounts are sh*gged though! And these were only done a year ago. But it would explain why the car wanders all over the road at the moment!

The alarm stopped operating the central locking from the point at which i parked it up this morning, first time thats happened. Then it kept going off when the car was being MOT'd! but since ive got it home its back to normal!

Failed on emissions (CO 0.5% too high), perhaps that can be adjusted on the VR6, but on the drive home the engine started running rough as **** under load. Keeps dying on you when you accelerate, splutters like mad. plus idle is no longer steady. Lift pump isnt priming though and under body pump is very noisy so i suspect a faulty lift pump. The pump connector gets power.

Anyone know which lift pumps can be used? obviously the digi mk2 one can, but how about a mk3 one?
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: Jay on 17 March 2010, 19:23
Damn dude, that's quite a lot of things. You've not had much luck with her since you've had her  :undecided:

At least it's the 2nd car and you work for a motor factors, so hopefully get the parts required cheap :afro:
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: mattneck(Beavis) on 17 March 2010, 19:31
Wh you working for now Chris?
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: cняis on 17 March 2010, 19:49
Wh you working for now Chris?

gillams in wincanton, small local factors. plus we've got our own workshop and MOT bay :afro: although sometimes i have to go to GSF for some bits...

not worried about 3/4 of the failures, theyre mostly minor things but im thinking the car is cursed!

any clues regards which fuel pumps work?

Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: Wayne on 17 March 2010, 21:05
From memory use a std digi lift pump from the mk2.
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: cняis on 17 March 2010, 22:13
cheers wayne, this is what is currently fitted but was wondering if perhaps an early mk3 1.8 or 2.0 (8v) one would fit as theirs a few at our local breakers  :smiley:
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: danny_p on 17 March 2010, 22:39
mk3 pump means fitting mk3 tank.

if running vr6 of mk2 digi  fuel pump it needs to be in optimal health as vr6 runs 4 bar fuel pressure instead of the 3 bar the pump was desinged for
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: cняis on 17 March 2010, 22:58
mk3 pump means fitting mk3 tank.

if running vr6 of mk2 digi  fuel pump it needs to be in optimal health as vr6 runs 4 bar fuel pressure instead of the 3 bar the pump was desinged for

in other words it needs to be a new pump! GSF list an in-tank pump for £21.50...? i take it this is only the pump and not the sender unit for fuel level? anybody know for sure?

Quote
183VG0320           FUEL PUMP-IN TANK           G2 1.8 8v F.Inj 8/83 >10/91           21.50
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: rubjonny on 18 March 2010, 09:02
that part is literally just the pump, i believe it comes with a new filter thingy as well. not hard to change over :)
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: cняis on 18 March 2010, 13:27
that part is literally just the pump, i believe it comes with a new filter thingy as well. not hard to change over :)

cheers RJ, even if this isnt the problem, at least its only £21.50 rather than £100 for a complete assy

a week today the work starts! in for a penny in for a pound i say  :grin:
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: jmsheahan on 18 March 2010, 23:27
The GSF lift pumps arn't too shabby - I put one in a few months back and not had any problems. As RJ said they come with a filter too.

Use an oil filter wrench to shift the plastic lug on top of the tank.
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: cняis on 19 March 2010, 18:25
pump assy has come out OK, the plastic ring unscrewed without too much hassle. Just got to make sure i dont damage the sender unit when disconnecting the old pump.

BTW the pump unit itself is TINY! didnt expect it to be that small!  :laugh:
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: cняis on 19 March 2010, 22:08
the fuel pump has been swapped over and fitted in the car. the filter on the end up the pump was a different shape to the original which means the rubber straps either side to support the OE filter cannot be fitted to the new one... but it doesnt flap around very much so im not worried!  :smiley:

the old pump was definitely broken as it wouldnt run with a 12v feed straight to the pump terminals. The new pump primes fine and the car seems to run ok, if a bit lumpy for the first couple of minutes after fitting... but whether this was production crap in the new pump or possibly a further issue with the car  :huh:

only time will tell!
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: Jay on 19 March 2010, 22:22
hopefully it was just getting rid of the air in the fuel lines that caused it to run crap for the first few minutes, is it running better now?
Title: Re: MOT failure list (FAO Jay!) - fuel pump question
Post by: cняis on 19 March 2010, 22:27
hopefully it was just getting rid of the air in the fuel lines that caused it to run crap for the first few minutes, is it running better now?

hadnt thought about that. when i first fitted it, i let the pumps prime for a good 10 or 15 seconds (as the pumps prime off a separate switch). It ran fine for 10 seonds then i revved it... and it ran lumpy again. went back to it 30 mins later and it seems perfect now!

so hopefully the lumpyness was either a bit of crap in the new pump (from production) or air in the fuel lines?