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Old 29 July 2001, 09:15 PM
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LeeMac
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Just to follow on from post in general section, jack up the rear and turn a wheel, turns about a quarter and locks up, now is there a problem with the center diff, this is the last time I promise. Do you think i should fit one myself (I am familiar with a spanner, although I'm not a patient chap).
Old 30 July 2001, 12:34 PM
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pat
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Lee,

when you say that it locks up, do you mean completely or do you mean that it just becomes more difficult? Also, when you say jack up the rear, do you mean one side or both (ie jacking on the diff). These things will affect what is the "correct" behaviour...

As for fitting a centre diff yourself, it is possible, but I wouldn't recommend it unless you really know what you're doing! You'll almost certainly have to drop the 'box out (it may be possible by removing the cradle and prop and unbolting the centre..... but I'de far sooner do it on a bench!) You need ramps to get the 'box out (or an inspection pit, but you will need axle stands as you need to split down the lower suspension linkages).

Also important is the type of car. The Type R and later Type RAs have a mechanical (not viscous coupled) rear diff and a planetary centre . I do not believe there is anyone in the UK that can rebuild that particular diff; it's a long shot, but maybe Prodrive can help (they used to sell Type Rs for Group N rallying, IIRC).

It may be fine of course, but it may not, just depends what you're doing....

Cheers,

Pat.
Old 30 July 2001, 07:49 PM
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LeeMac
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its a UK94 turbo, jack up at the rear diff turn wheel and it becomes difficult, in previous posts I read that its possible to take out with box in in about 45min, I was asked if it had a lsd in g/box at a diff specialist in bolton and quoted me £150 to £500 most breakers either dont have any or wont split from box.
Old 31 July 2001, 07:00 PM
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scoobyboy
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yep u can drop it out in about 45mins i do and you dont need to remove the gearbox.usually though when a diff like that goes wrong it makes the car wind up when cornering and will start to scuff the wheels if you drive it slowly around in circles it will get more and more difficult todrive and will eventually stop
Old 31 July 2001, 08:57 PM
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LeeMac
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Scoobyboy, what would the labour cost be on this, my local dealer gave me a rediculous quote. You can hear the tyres trying to spin when I corner over loose gravel and the car dosent move right at all, I have noticed before in snow it was kicking out and had to drive vey slow.

[This message has been edited by LeeMac (edited 31 July 2001).]
Old 01 August 2001, 08:02 AM
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Blackscooby
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Lee,

You have mail.

Old 01 August 2001, 08:25 PM
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LeeMac
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right i'm really getting fed up with this one, the cars stuck on the drive and ive had to make do with the missus' car, getting mixed answers when enquiring about the diff, some places havnt a clue but the main dealer are telling me the box has to come out as the diff is inside it, so what do I do now, main dealer or not.
Old 01 August 2001, 11:16 PM
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firefox
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Howdy..

Gearbox consists off two diffs... the front diff, which will be an open gear type diff. To work on this the whole box has to be removed.

The other diff, bolts onto the end of the gearbox, this is the centre diff and is a VC type diff. You unbolt the prop and the transfer section off the gearbox. This contains the diff.


The back diff is easy to work on... and doesnt need any explanations.

J.

Old 01 August 2001, 11:58 PM
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LeeMac
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Thanks all, nearly made my mind up now, might give the main dealer one last go tomorrow, i've got to get it done soon driving a mx5 auto is doin' me head in.
cheers.

Just to add for any searches, up to now its ok and just had the centre diff changed.

[This message has been edited by LeeMac (edited 10 August 2001).]




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