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AP Racing Twin Plate Clutch Problems
Posted: Fri Mar 04, 2016 2:24 pm
by omsracer
I have just stripped my clutch down after a session on the rolling road identified a dragging issue. When trying to get the plates out the intermediate plate was pretty solidly wedged in which was obviously causing the clutch not to release. Not sure now what to do next or whether a new set of steel plates and clutch plates could solve the problem.
AP are quoting 3 weeks to look at the unit and a silly sum of money which might in the end make it easier to buy a complete new unit. Any help and guidance would be greatly appreciated as Oulton park seems to be slippy away day by day.
Please contact me on my mobile: 07710 571463.
Many thanks
Peter
Re: AP Racing Twin Plate Clutch Problems
Posted: Fri Mar 04, 2016 4:52 pm
by tristancliffe
Distortion from heat is very common, although later units apparently got a bit better.
What you can do is prise the plates out (carefully!), and then file them so that they slide easily, with a few thou of clearance. You can do that several times too if necessary, but check them for flatness when you do it because if they are too warped they'll continue to drag when released, creating heat, creating distortion etc.
Mr Harrison (and others) have been seen with cars split in a garage between sessions frantically filing the plates!
Re: AP Racing Twin Plate Clutch Problems
Posted: Sat Mar 05, 2016 7:12 am
by Nick Harrison
Indeed, someone has been riding the clutch.
Re: AP Racing Twin Plate Clutch Problems
Posted: Sat Mar 05, 2016 10:17 am
by omsracer
It was fine before I went to the rolling road, 'he said in his defence'.
Thanks both for your help.
Peter
Re: AP Racing Twin Plate Clutch Problems
Posted: Sun Mar 06, 2016 12:09 pm
by tristancliffe
Nick Harrison wrote:Indeed, someone has been riding the clutch.
I'm sure neither of your drivers ever do that.
Re: AP Racing Twin Plate Clutch Problems
Posted: Mon Mar 14, 2016 4:11 pm
by peter holst
sorry to use this post but I have got a problem with that kind of clutch too.
I need some new plates but I can´t find out wich to buy at Demon Tweeks
http://www.demon-tweeks.co.uk/motorspor ... rive-plate
I have to choose drive plate type and spline
can anybody help me....
Re: AP Racing Twin Plate Clutch Problems
Posted: Mon Mar 14, 2016 5:07 pm
by tristancliffe
For the spline measure the diameter of the shaft and count the splines.
For the plate, you could look up the part number that'll be stamped on your one and compare to here
https://www.apracing.com/drawings/2016% ... clutch.pdf. Also, I have my doubts that Demon Tweeks would be the cheapest place to buy (but you never know, stranger things have happened).
Re: AP Racing Twin Plate Clutch Problems
Posted: Tue Mar 15, 2016 11:54 am
by peter holst
thanks - this is very helpfull
