Gear selector problems - MINI Cooper Forum

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post #1 of 6 (permalink) Old Jul 15th, 2014, 07:16 PM Thread Starter
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Gear selector problems

Evening All,

Apologies for my 1st post being a question... Ain't it always the way!

I've got a 54 plate Mini Cooper S... And recently having a bit of trouble with selecting gears...

The problem only happens when the engine is on, and only after a few miles. As soon as I switch the engine off I can select all gears freely! It feels as if there are no 'gates' for any gears!

My 1st thought was selector cables... But the fact it is only happening when the car is on makes me think it's pressure or vacuum related... Perhaps a blocked breather on the gear box if it's got one?

I must admit that I did have a squeaky clutch... So sprayed some WD40 under the clutch cylinder gaitor a few days before this started... But I can't see how that would cause this!

Anyone experienced this or know what the problem is?

I don't want to send it into a garage with an open cheque book for then to poke around without some idea what it is 1st and if I can fix it myself I will!

Thanks in advance
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post #2 of 6 (permalink) Old Jul 15th, 2014, 07:41 PM
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Hi ya

If it's a manual gear box it has no vacum or pressure inputs.
Try the easy bits first
It could be the selector cables that are under the airbox, it may also be that you need to bleed the clutch, this must be done correctly

[ame="http://m.youtube.com/watch?v=68PIYbXk1nc"]Mini Cooper Clutch Slave Cylinder Bleeding Tips R50/53 Cooper/Cooper S - YouTube[/ame]

You may need go spray some lub on the clutch actuator arm that goes in to the gear box

Try this first
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post #3 of 6 (permalink) Old Jul 15th, 2014, 07:50 PM Thread Starter
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Thanks.

This was my next port of call... But still seems strange that it only happens with the engine on, and after a few miles...

Regards,
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post #4 of 6 (permalink) Old Jul 15th, 2014, 10:17 PM
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Originally Posted by frostie24 View Post
Thanks.

This was my next port of call... But still seems strange that it only happens with the engine on, and after a few miles...

Regards,
Hi ya
it could be a worn guide tube or bad clutch plate jamming on the splines, how many miles do you have on the clutch.

I would bleed it first get the basics done :-)
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post #5 of 6 (permalink) Old Jul 16th, 2014, 01:13 PM Thread Starter
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Thanks Marque,

From what I can tell, it is the original clutch, and so it's got around 105,000 miles on it!

I wouldn't be surprised if the rest of the parts are also original, so I was planning on changing the clutch slave cylinder and greasing the gear linkage in the first instance, and just hope that any internal parts have still got some life left in them!

This may sound a very stupid question, but looking at the video you posted(very helpful by the way)... do the brake system and clutch system share a fluid reservoir? I can't find any reference to a separate clutch reservoir...

Thanks in advance.

Frostie
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post #6 of 6 (permalink) Old Jul 16th, 2014, 07:41 PM
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Hi ya

The Brake and clutch fluid are in the same reservoir :-)

If you for some reason decide to flush the brakes as well, do not let the reservoir run down to much or you could get air in to the abs pump. Then you will need a computer with dis on it to activate the abs pump to remove the air.

Just for bleeding the clutch you will not have a problem as long as the piston is pushed back.
If you push the piston back and jam it with out removing the slave cylinder. If the peddle is hard or goes hard when you are bleeding it do not push on it or you could snap the gear box mounting lugs. Open up the bleed nipple more.
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