Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

T56 overhaul and new clutch

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Old 04-30-2018, 01:15 PM
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IMO a 3mm gap will be far too small and leave you with no gap in a very short space of time as the clutch wears and fingers get higher.

I'd be happy with 8mm.
Old 04-30-2018, 02:49 PM
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Gav
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Thanks Steve,
spoken with tdp just. I got 8mm, there is a 3mm shim in kit. So will give me 5mm for as you said, wear and break in.
btw, what turbo you run?
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gav
Old 04-30-2018, 05:51 PM
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If it is 8mm, no way would I be adding any shims.

Just a couple of BW's
Old 05-01-2018, 01:06 PM
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Ok, will re measure then decide.
Just a couple of BW,s tut tut....wish i had.
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Old 06-26-2018, 03:17 PM
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Oh well,
all that effort replacing clutch, inners of gearbox...
it drove ok for first 1/2 mile taking it steady and has got progressively worse from then. When warm cant change down gear, gears tight and wont go in. God i hope its just a bleed problem but getting no bubbles in line when bleeding with extension bleeder. Massive job for me to rip box back out again though in tiny garage space.
need a beer...
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gav
Old 06-26-2018, 04:51 PM
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Cant change down gear with engine running or engine stopped ?

What clutch, flywheel ?
Old 06-26-2018, 05:15 PM
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Hi,
engine running.
Diamond stage 2 and flywheel.
willdo some more checks after weekend
reg
gav
Old 06-26-2018, 05:43 PM
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So it changes gear ok with engine off ?

So it sounds like the clutch is dragging ?

It does seem some clutches have issue with ARP bolts...where these used ? As they are taller some clutch discs can foul and cause dragging. This should be obvious if you take it apart.
But would depend on how thick the centre section of clutch plate is, depth of flywheel recess for bolts etc etc

Or it may be insufficient travel at the slave, better bleeding, whatever.

getting a visual as to what is happening in there will help, cheap USB bore scopes are dirt cheap and would only need a small hole drilled to get some access.
Old 07-21-2018, 04:41 AM
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Hi all,
thought i would update this.
Took it to a gearbox centre, he stripped it down and found issue straight away. I missed one c clip out......he said it was perfect apart from that....i felt so dumb. My only saving grace was it was item 13 in the manuel which is not showing in the manuel pdf, it is blanked out. It shows number 13, and a line pointing to nothing.....grrrrrr.
Anyway, thanks all, my first and hopefully last gearbox stripdown.
Also thanks to Jason at TDP. Clutch stage 2 is slightly heavier and grabbier but makes those shifts at high rpm easier.
Regards
gav
Old 07-21-2018, 06:05 AM
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13....unlucky lol.

Did you miss the clip because you lost it, or was it a "spare part" after the rebuild ?
Old 07-21-2018, 09:56 AM
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I did have a spare clip but i thought it was to do with the reverse assembly which i never stripped in rear tail housing...well assumed....
reg
gav
Old 07-21-2018, 01:30 PM
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I got a load of freezer type bags and bagged/tagged everything in grouped sections when I took mine apart, so hopefully nothing would get mislaid or missed out etc. As well as lots of photos.



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