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1st - 2nd Crunching on MY96

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Old 11 June 2002, 07:38 PM
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croxton7
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Hi,
I have noticed just recently after long motorway work, that when changing between 1st - 2nd it is nearly impossible to stop a crunching sound/grating sound from gearbox. I know the earlier model cars suffered from this but it seems to be more noticeable lately.
Any ideas what I should be checking ? Gearbox oil ?, Clutch ? and will a quickshift help or hinder this problem.

Thanks in advance for any help.
Cheers
Steve
Old 11 June 2002, 07:50 PM
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David_Wallis
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try changing slowly.. and see what happens.... mine does it.. if I try and go quick.. but Im just waiting for the box to die... then Ill replace it with something special

David
Old 11 June 2002, 09:42 PM
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submannz
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If you can't affort to get the synchros fixed then there are some very good products on the market to allow the synchros to bite again.
Old 12 June 2002, 08:24 AM
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LG John
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Sounds like the syncros to me! I had this problem with the Saxo and it was taking over a second to make a smooth 1st - 2nd change at high revs. I argued for ages with Citroen to get it changed and finally they did and the new gearbox works perfectly. Quickshift would probably make it much worse I'd have thought, less time for the syncro to do its thang.
Old 13 June 2002, 10:33 AM
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croxton7
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Thanks for all your help guys !

I wondered if it was the synchro going, not good !

Any ideas how much to get synchro replaced or is it a new gearbox ?

Pity about the quickshift aswell, but it is a good point Saxo - thanks

Cheers
Steve
Old 13 June 2002, 11:52 AM
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Pavlo
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I have a receipt for just that job, the previous owner got it done,and it cost £525 inc vat in 1999.

Paul
Old 13 June 2002, 12:36 PM
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UkLegacyT
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steve, just sent my 'as new' synchros to someone else

must have been that reversing you had to do
Old 13 June 2002, 05:16 PM
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ustolemyname??stevieturbo
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Is your clutch operating as it should? Also, a change of oil can sometimes work wonders. I have used Castrol SMX gear oil in a couple of subarus with crunchy changes ( fast driving ) and it did stop crunching afterwards. Maybe some of the redline oli people rant and rave about could be even better
Old 13 June 2002, 05:24 PM
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carl
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Silkolene Syntrax 5 worked for me
Old 13 June 2002, 07:19 PM
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croxton7
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Thanks alot guys !

Perhaps I will try some better oil in the gearbox first, don't like the look of a £500+ bill !!

So fitting a quickshift is probably a bad idea, what with the syncro looking like it might be getting weak ? .... **** ! I have already ordered one before I noticed problem getting worse .... typical or what.

oh and cheers Ian ! don't tell me you almost gave em away ?

thanks again guys !
Old 13 June 2002, 07:24 PM
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UkLegacyT
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free mate, they are different to my new box, so of no use
Old 14 June 2002, 12:09 PM
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GrantF
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I have recently had 2nd, 3rd and 4th syncro rings replaced, a bearing and baulk ring on my MY98 at a cost of £480.The labour to remove and refit g/box at a local garage was £120.By holding off the repair damage could occur on gear teeth and this could prove more costly.Try using Redline 74W90NS,as recommended to me by Graham Goode(not cheap though)this may help if syncro not badly worn.
Old 14 June 2002, 01:49 PM
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flat4
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Lightbulb

i'll give you an update when the gearbox is back in if changing the syncros has made a difference, mine has been like it for almost a year, makes 0-60's very difficult


kev
Old 16 June 2002, 12:45 PM
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Scott.T
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£40 and a refill with Castrol Syntrax sorted it for me. Best £40 I've ever spent on a car.

I bet a gearbox company wouldn't tell you that tho'.

When was the oil last changed, mine was due the 30,000 mile change and boy did it make a difference.
Old 16 June 2002, 02:28 PM
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croxton7
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Scott,
where did you get it sorted for £40 + oil ? - now that sounds like my type of solution also.

Cheers
Steve

[Edited by croxton7 - 6/16/2002 2:29:05 PM]
Old 16 June 2002, 02:53 PM
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ustolemyname??stevieturbo
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He changed the oil. Must have paid someone to do it, hence, £40 + the oil... Depending on the oil in the box, it can remove the crunchy changes. Obviously it isnt a real fix, but its a lot cheaper than stripping the box, and will probably last a very long time before needing synchros etc replaced.
Old 16 June 2002, 09:39 PM
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Scott.T
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£40 was for the oil. Changed it myself (I could of worded my post a little better).

It's not a cheap fix, it's replacing oil that has had it's day and in accordance with the service schedule. A cheap fix it putting Slick50 or other such products in.

Castrol syntrax has been in there since October and I've not heard a peep from the gearbox.
Old 16 June 2002, 09:47 PM
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croxton7
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Thanks for clearing that up guys, I will get oil changed this week and will keep you posted of any improvements.

Thanks for your posts.

Cheers
Steve
Old 16 June 2002, 10:08 PM
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Scott.T
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If it's gonna improve things it should be different straight away.

But don't expect it to be totally cured for a week or so. The new oil may need time to clean any of the old s-h-i-t-e out of the synchro's.
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