Originally Posted by Dan_Lockwood
Originally Posted by P964
Could I please canvas the sage advice of forum members on the following decision.

I have a broken diaphragm spring. I have tried a variety of avenues to obtain a replacement item but it seems that such things only come as a complete set.
I have had the local (only?) clutch person look at my bits n pieces and he also can not source a diaphragm.
He can rebuild by buying a pressure plate set similar to current and modifying it all to work.
He has also suggested making a flywheel and using a Toyota pressure plate unit and friction plate. This would be larger diameter than current standard. This would make future replacements easy as would be common componentry.
Lastly I can buy ex Morgan ( Brands Hatch Morgan) the complete set.

All three options are approx the same cost, except for the extra shipping and tax from BHM Which won’t be cheap. One of the disadvantages of residing in New Zealand

So, which to decide on?

I don’t suppose any TM members have a M3W diaphragm plate lurking somewhere waiting to be released back into the wild?

I have contacted the company in the UK which makes the clutch, but they passed me over to Mr Evans at Morgan.
All clutch suppliers I have contacted will only supply the complete pressure plate set. I presume thus is because there is some magic in re-assembling the units???

All advice gratefully accepted


If your guy decides to try a Miata clutch/flywheel setup, I would be very interested in the outcome. There are aluminum and steel lightweight flywheels available for the Miata and I also read that they are larger in diameter and that can't be all bad either.

Inquiring minds want to know... smile


+2 Miata set ups can take lots of abuse. Seems like if the weight worked then trying to make the Miata stuff work would be the best. If I recall you can get a 8lb fly wheel for a Miata. I wonder how much the stock unit weighs.


2017 M3W Sport Green