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Model specific boards => Golf mk4 => Topic started by: 1.8t.jim on 08 September 2012, 22:36

Title: changing oil pump
Post by: 1.8t.jim on 08 September 2012, 22:36

is it a big job changing the oil pump on my mk4 gti AGU engine ? i no i have to remove the sump but i dont know how get the old pump off can somebody give me any advice :)

Title: Re: changing oil pump
Post by: peterg60 on 08 September 2012, 22:39

once sump off oil pump is holded by 3 10mm bolts. the chain has a tensioner you can pull this back with your finger and remove the chain. just a heads up when taking sump of there are 2 tricky bolts by flywheel you will need 6mm hex ball key to get to them. i think its 6mm

this is what i used

http://www.ebay.co.uk/itm/180710929941?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Title: Re: changing oil pump
Post by: 1.8t.jim on 09 September 2012, 09:43

thanks mate ive ordered that hex key set!  :smiley: is it worth replacing the sump cuz my sump has a few dents and scrapes some are patched up with steel paste, and what kind of sump sealant will i need ?

Title: Re: changing oil pump
Post by: Wazzzer on 09 September 2012, 10:03

sealant from VW

Title: Re: changing oil pump
Post by: 1.8t.jim on 09 September 2012, 10:05

just found it on ebay for £9 vw/skoda/seat sump sealant  :smiley:

Title: Re: changing oil pump
Post by: cobalt6700 on 09 September 2012, 10:27

Please make sure you locktight the bolt for the oil pump gear.

Had one in the garage last week which had spun the bolt out on the motorway, the job had been done previously by soneone else about 3 months before.

That was new crank time as it wrecked the gear on the crank.

Just a heads up :)

Title: Re: changing oil pump
Post by: 1.8t.jim on 09 September 2012, 10:56

lock tight the gear? what is this lol please can you give me more info please  :smiley:

Title: Re: changing oil pump
Post by: cobalt6700 on 09 September 2012, 11:36

The oil pump has a gear on it which is driven by a chain from the crank. The gear is bolted to the oil pump with one bolt, and that's the one you need to locktight up :)

Title: Re: changing oil pump
Post by: 1.8t.jim on 09 September 2012, 15:21

thanks mate got my oil pump off earlier and i now see what you mean :) its not as hard as i thought it would be after my sump came off noticed a huge crack at the bottom so im going change that now hopefully with new oil pump and sensor (which i hope is the right sensor ive took out aha) ontop of the oil cooler by the filter ? the car should run great then the next job is ko3s  :evil: