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[Tree]

hi the pressure plate and basket on the new r28 clutch are the same fitting etc so i presume the release bearing will still work, not sure what you mean by right height? in theory if i could graft the splines from the r28 plate to redtop plate it would be fine, but after reading various forums and advice was told it would be a simple bolt on job

[Marks DTM Calib]

hi have just got all the bits together and tried assembling, the r28 clutch plate is 9.5" where the redtop is 9" and the splines are different  r28 has bigger and less splines. any suggestions? on a lighter note the spigot bearing fits [smiley=2vrolijk_08.gif]

I suspect you may need the 2.5V6 clutch setup which from memory is smaller.

Check the Borg and Beck or similar clucth sites (e.g. LUK) for info

[2woody]

when I said "and whatever flywheel combination you're using has the same height as the gearbox is expecting", that's what i was on about.

most of the Omegas used dual-mass flywheels, which are thicker than the single-mass one that you have. This means that the end face of the clutch cover, the part that the release bearing mates to is further away from the rear face of the cylinder block. This is the "clutch height".

There are a number of options for you......

use a flywheel from a 2-litre Omega, complete with the clutch - if lucky, you'll get one without DMF

Use the flywheel that you have and change to a compatible driven plate.

get a special flywheel

Use a flywheel from a Carlton, and convert to cable clutch - again from the same vehicle.

regarding driven plates, you say that you have 9", which is 228mm. According to ZF, the plate that you have on the red-top is 228mm and 24teeth (sprung centre), whilst the plate you got with the gearbox is 240mm and 14 teeth (solid centre).

The Cavalier turbo 4x4 / Calibra turbo 4/4 have a friction disc of the correct diameter and correct hub splines with springs. Other than that, the Carlton 2.0 is a tad smaller, but acceptable in the hub department. I can't think of any reason why either shouldn't fit, but I'd certainly advice getting a second-hand one to trial-fit before you spend any appreciable money.

[Tree]

many thanks for all advice i am going back to calder clutch where i got r28 from they make them there and may be able to advise or splice the 2 if not will look into 4x4 plates
thanks again

[Tree]

this seems to be the solution as i have been to calder clutch and they made me one up for £40 clutch part no 1907 for anyone else in the future, but not finished yet i need to find a 20mm spacer to compensate for losing the dual mass flywheel unless anyone knows a solution have had one idea sent to weld on a transit di bearing but problem is omega one is a plastic case

hi have just got all the bits together and tried assembling, the r28 clutch plate is 9.5" where the redtop is 9" and the splines are different  r28 has bigger and less splines. any suggestions? on a lighter note the spigot bearing fits [smiley=2vrolijk_08.gif]

I suspect you may need the 2.5V6 clutch setup which from memory is smaller.

Check the Borg and Beck or similar clucth sites (e.g. LUK) for info