1989 348 tb clutch help

Hi
It is an option to change to a single plate, but you need a new flywheel and starter ring to do that. and ferrari dont sell the flywheel without the whole voith system attached at mega bucks. There are aftermarket alternatives.

You do need to check the flywheel for flatness when you change the clutch, as well as the pressure plates if just relining the friction plates. we often see friction plates worn on the outside from dished surfaces.

Also good to check for any oil leaks, and if you havent done the kluber grease in the voith system - think about that.
You have an option of going kevlar (much longer life) or ceramic paddle, although the later I wouldn't advise in a road car. and kevlar would be rather expensive for a twin.
Hope that helps and not confuses you too much with more choices!

 

Just out of curiosity, are you sure that your car hasn't already been upgraded to the single disc clutch? You can't tell from the outside.

 

Don't downgrade to a single disc!
PM me. I need a 1911 or 1991 .45 in matte.

 

Single disc is a downgrade? Why is dual better?

 

eurospares have both single and double clutches on special offer at moment. Not sure how that works out for US customers but seems like a good deal

 

You should contact the folks at MD clutches as well for advice. Nice folks. They sell clutch plates with improved friction materials, and conversion kits as well if desired. Also they have entertaining videos:

https://www.youtube.com/watch?v=bvEwnTraISU

If it's never been done before you will probably also want to regrease the flywheel. After 25 years the grease in there breaks down and no longer does its job properly. They have a video on that too. My favorite part is watching him regrease it in a wool sweater

Good luck!

 

Take (or send) your clutch assembly to HR Clutches outside of Philadelphia and have them reline the discs with Kevlar and resurface the flywheel. They do excellent work and are great people. Did this with mine two or three years ago - when I got it back it looked brand new, had proper paint markings on bolt heads and since I installed it, it has performed great. I'd have to check, but I believe all the work was done for around $1100.

Also worth noting that they replaced the diaphragms on both clutch plates as well.

No affiliation with them, just satisfied with the work and can attest to the value you will get.

 

Single is lighter and less expensive in the long run, but the dual has better action IMO. Ferrari never should have changed the design.