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Model specific boards => Golf mk2 => Topic started by: r6mart on 20 July 2003, 21:22

Title: Gearbox crunching.
Post by: r6mart on 20 July 2003, 21:22

I have a '90 GTi 8v with 94K on the clock. When it's cold, if I change normally from 1st to 2nd gear it crunches. If I change slowly, waiting briefly in neutral, it doesn't crunch. Also, when it's warmed up, it doesn't crunch, and it doesn't when changing from 3rd to 2nd.

I've topped up the gearbox with oil. Does anyone know if this is a common problem? I don't know if it's the gearbox that's faulty, or if it's possible that it could have a lazy clutch?

Any advice appreciated. ???

Title: Re:Gearbox crunching.
Post by: Justins145bhpMK1 on 21 July 2003, 09:36

agree with VR6, very common fault im afraid!!!!

Title: Re:Gearbox crunching.
Post by: richandhazel on 21 July 2003, 14:30

Yep I agree too, the gearbox I have recently fitted to my Cabrio is doing exactly the same. Fortunately I have a spare box courtesy of 'Old_Boy'.

Is it possible to fix the synchromesh..........especially as I have another gearbox that is totally f*****d, apart from the fact that the synchromesh was OK in second.

Title: Re:Gearbox crunching.
Post by: Justins145bhpMK1 on 21 July 2003, 14:51

Not sure about fixing the syncromesh Rich. Might be worth having a chat to a gearbox specialist, see if they say its possible?

Title: Re:Gearbox crunching.
Post by: stoat on 21 July 2003, 15:42

and here

Title: Re:Gearbox crunching.
Post by: richandhazel on 21 July 2003, 23:04

Hmmm, when I get a minute I'll have a scan through my workshop manual and see what it says. I know it does cover splitting the gearbox down but I'm not sure how far I can get without the need for specialist tools. I'll probably have a go at my totally knackered one first so it doesn't matter if everything springs out everywhere.  :-\
I was only going to chuck it anyway.........might just learn something.

Title: Re:Gearbox crunching.
Post by: Justins145bhpMK1 on 22 July 2003, 09:04

Good plan, if you have any success be sure to share your knowledge here!!!!!!

Title: Re:Gearbox crunching.
Post by: richandhazel on 22 July 2003, 13:44

I don't think it will hurt to pull my broken one apart and have a look. I'm an engineer by trade so I'm afraid curiosity is GOING to get the better of me. Just hope to learn something in the process........even if it is to take your advice and don't touch it in the first place ;)

The gearbox is really bad.......when I bought the car I was told it was sh@gged and they weren't wrong. I drained the oil and it came out REALLY thick and grey in colour. As more drained out, bits of metal started dropping out! Now that its drained, I can look into the drain hole and see the diff. It has loads of chunks of metal missing from it.

The point is, I don't think I have anything to lose by pulling this box apart. Rest assured 'Justins145bhpMK1', if I do learn anything that will help others here, I'll pass it on.  :)

Title: Re:Gearbox crunching.
Post by: Justins145bhpMK1 on 22 July 2003, 14:18

YEah go for it the Rich!, Be a good laugh pulling it too bits!!!

Title: Re:Gearbox crunching.
Post by: r6mart on 23 July 2003, 16:31

Well I reckon I'll try the synthetic oil to start with. Mind u, I am also tempted to pull my gearbox apart and have a go. Let us know Rich when you've done yours, you could put me off this idea!

Title: Re:Gearbox crunching.
Post by: richandhazel on 23 July 2003, 17:02

Should find the time this weekend. I may even take some pics as I go. Watch this space.......

Title: Re:Gearbox crunching.
Post by: Dean on 23 July 2003, 17:17

I get the crunch occasionally when cold, but it is understandable, the engine now has 192,000 on the clock.

Regards.

Dean.

Title: Re:Gearbox crunching.
Post by: modulater on 24 July 2003, 22:36

In all honesty its done a sh!t load of mileage and its probably earnt the right to play up, at least your diff rivets haven't gone through the case which is a major pisser on the old 020 style boxes and is what happened to mine. I think the major problem with taking the box apart is seperating the bearings from the shafts and from the case and you need all sorts of pullers and tools to do it, Be interesting to see the pics of the box rich if you manage to get it apart, a large hammer may come in handy.

Title: Re:Gearbox crunching.
Post by: cfbgolfgti on 25 July 2003, 15:23

yeah my gear box is doing that as well fort is was jus my sh!te driving

Title: Re:Gearbox crunching.
Post by: richandhazel on 25 July 2003, 19:24

Disaster.............I'm going to be messing around with a gearbox this weekend but not the one I thought.  :'(

I filled the Audi up with petrol this afternoon on my to picking up a new toneau cover for my cabrio. Went to pull away at a roundabout and there was an almighty bang and bits of gearbox landed in the road.  :o
Needless to say the autobox could no longer select a gear and I had to call Hazel out in her good old Audi 1.8S and get her to tow me home.

I haven't even dared look, I borrowed her car, picked up my toneau cover and have prepared myself for the worst this weekend........part of this preparation involves drinking vast amounts of Stella tonight.  :'(

Looks like it will be a bit longer before I dismantle the Mk1 gearbox........how ironic is all this  ???

On the bright side, I have the perfect oppotunity to install a manual gearbox into the beast, I have one from an old Audi Coupe GT 2.2, I don't suppose anyone knows if it will fit?

Title: Re:Gearbox crunching.
Post by: Lee on 25 July 2003, 20:05

Hello rich

Sorry to hear about the audi hope you sort it out its a fine car. :o

Title: Re:Gearbox crunching.
Post by: richandhazel on 26 July 2003, 00:39

Thanks Lee, how are you two? You must have some good news by now  :)