hello all my clubman has started 2 jump out of 2nd gear ,this only happens under hard deaccaleration is this a problam with links ,engen mounts/stays or is it something more sinister, if ihold the gearshift it does not happen . wher should i start????

Worn syncros are the usual suspects, gearbox may need a freshen up.

Doogie

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I won Hay once, here's the pic to prove it..


Hay, it's not about the car, it's not about the venue, it's about the people that come here. Peter Dwyer, Mayor of Hay NSW.

Bad news bro, 2nd syncro will be worn, and possibly 2nd gear itself. Not too cheap. Common

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Dean Hutton's first car was a Mini.

If it is a Rod Change Gearbox the first thing I would do is check ALL the external linkages for wear, and the gear stick aswell,

It could also be the 1-2 selector fork is worn bad, or cracked. They do get a hard time...

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

The mini king is on the ball, worn engine steady bushes, engine mounts, r cotton reel mounts and the rod change sleeve & roll pins all can cause the gearbox to jump out of gear. Check & fix all these items before you start pulling the gearbox apart. Broken springs in the hubs are a common cause of jumping out of gear once you get into the gearbox.
Cheers
David.

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Have a Nice Day.
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it is a rod change setup. have just been driving and have noticed that it will jump out 2nd ideling at 20kph if you hit the right bump dont know if this changes any ones reply ? il go check out links and all rubber and plastic bits thanx 4 the advice

mine tends to jump out of fourth every now and then.. should i be checking the same things? or because its fourth gear could it be something else?

Yes I would check all the previously mentioned items