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Model specific boards => Golf mk2 => Topic started by: emery1990 on 20 August 2010, 18:28

Title: exhaust manifold removal trouble
Post by: emery1990 on 20 August 2010, 18:28
ive taken off 7 out of 8 bolts after dosing them in plus gas for two days, all came off.

Just need a slim spanner with the circle bit on the end to get the last one off as the rachet was too big to fit. The haynes manual says about getting a downpipe removal tool, im struggling to get the two bolts off of the flange joint, is there a special tool needed, would a crows foot work ( adjustable tap spanner )

Also if anyone knows, i need to put a bung on my manifold for an 02 sensor when it comes time for mapping my ms, where would be the best place to put this?
Title: Re: exhaust manifold removal trouble
Post by: Diamond Hell on 20 August 2010, 21:36
Downpipe removal tool?

For a cooking Golf2, yes, but they have spring clips, which you can just level off with a bar.

G2 GTI should have 6 bolts on the top of the downpipe and a flange at the bottom.  All nuts.

Put the lambda boss at the bottom of the downpipe, pointing up into the tunnel, like a G3.
Title: Re: exhaust manifold removal trouble
Post by: emery1990 on 21 August 2010, 14:50
Ok yes was being blind there are 6, all seem very rusting so putting plus gas on for a few days. Theres 6 bolts underneath the flange so finding it hard to get something under there plus its seems there various sizes of bolts too!

Haynes says, " VW tool 3049A will be necessary to release and subsequently refit the joint retaining clips

Do I need to raise the car to get the bolts then ?

Also, we've got an arc welder, can i use it to weld a bung onto the downpipe? Guessing it welds to where it goes into one pipe so i get all 4 cylinders, all i can see on mine is two pipes but probs goes to one then a silencer in mild steel then after that is stainless.

Would i excess the lambda boss by taken the hand brake gear stick surrounding off ? Or do i need to remove the it to weld it?
Title: Re: exhaust manifold removal trouble
Post by: danny_p on 21 August 2010, 18:23
the best place for teh lambda i just after the last merge of pipes in teh exhaust system. as dh said  lambda sensors must allways be mounted so the sensor eliment is pointing down,  so condensation dosent collect in the sensor as that kills them
Title: Re: exhaust manifold removal trouble
Post by: emery1990 on 22 August 2010, 09:26
Ok thanks, when it's fitted where would you excess it?
Title: Re: exhaust manifold removal trouble
Post by: danny_p on 22 August 2010, 09:48
as long as it just pointing down they are fine,  so you can usally pick a spot where there is enough room in the tunnel for accses
Title: Re: exhaust manifold removal trouble
Post by: fishnchipsx2 on 23 August 2010, 12:25
Downpipe removal tool?

(http://www.terriertools.co.uk/ekmps/shops/terriertools/images/bosch-angle-grinder-gws-6-115-128-p.jpg)
Title: Re: exhaust manifold removal trouble
Post by: Sam on 23 August 2010, 12:55
Downpipe removal tool?

(http://www.terriertools.co.uk/ekmps/shops/terriertools/images/bosch-angle-grinder-gws-6-115-128-p.jpg)


Not with that disk  :rolleyes:
Title: Re: exhaust manifold removal trouble
Post by: VeeDubGTI16v on 23 August 2010, 14:11
(http://www.championhire.com/site-images/plant/1376.jpg)
 :huh:
Title: Re: exhaust manifold removal trouble
Post by: emery1990 on 23 August 2010, 17:08
Think im gonna need one, cannot get the fing manifold off the downpipe  :angry:
Title: Re: exhaust manifold removal trouble
Post by: danny_p on 23 August 2010, 18:41
(http://hf8x12.com/Track%202.jpg)    :cool:
Title: Re: exhaust manifold removal trouble
Post by: emery1990 on 23 August 2010, 18:52
That was my next step, but seems my nozzle has been theived whilst on holiday !!! Is cherry red ok ? or will that blow the flange up ?
Title: Re: exhaust manifold removal trouble
Post by: danny_p on 23 August 2010, 20:52
cherry red is the starting point,   work up to  bright yellow and dripping
Title: Re: exhaust manifold removal trouble
Post by: emery1990 on 24 August 2010, 16:33
You joking or serious lol ? the nuts and studs are copper arnt they ?
Title: Re: exhaust manifold removal trouble
Post by: danny_p on 25 August 2010, 01:54
the manifold to downpipe is steel,  manifold to head is copper nuts.

manin downpipe comes off quite easy from under the car with plenty of plus gas and 1/2 drive extensions.  failing that reg heat and try again.

manifold / head nuts    if the head is off and they piss me of i just muder them and then wind the last bit of the stud out.  if on the car a good heating till things get a bit red often works
Title: Re: exhaust manifold removal trouble
Post by: emery1990 on 25 August 2010, 17:04
ah ok cheers mate,  :smiley:
Title: Re: exhaust manifold removal trouble
Post by: emery1990 on 26 August 2010, 16:28
gave up on the downpipe bolts, rounded one off and cant even get to the other bolts with the tools ive got ( needs to get new set of socket bits etc), , started cutting my manifold with a junior axle in frustration, now waiting for a disc cutter from my brother  :angry: hopefully then ill be able to get to all the bolts and spray them with plus gas!
Title: Re: exhaust manifold removal trouble
Post by: richard s on 29 August 2010, 20:20
i bought some irwin bolt grippers and long extensions and a universal joint when i changed my downpipe as i seemed like i had 3 sizes of nut on there till i got them off and saw they were just in different stages of rusting away
also found a breaker bar helped with the initial release 
Title: Re: exhaust manifold removal trouble
Post by: emery1990 on 29 August 2010, 20:37
cheers mate, ive just removed the whole downpipe so i can lift the manifold near enough out so can get to all the bolts now with plus gas and sockets!