Solution to the thrust bearing failures on 3200 GT's?

Alecci

Junior Member
Messages
193
Greetings to the board!

I don't know whether this topic has come up before, but I'll give this a go nonetheless.

I'm not currently suffering from any thrust bearing issues with my own car, or rather, at present it shows none of the symptoms I've seen associated with this issue, also called crank-walk if I'm not mistaken.

I remember reading somewhere long ago that multi-plate clutches will put less strain on the thrust bearings than a single-plate clutch would, so I posted a topic with this questions up on a few boards that I frequent. So far the answers do indeed point to the fact that a mult-plate clucth would reduce strain on the thrust bearings. If this is true, shouldn't one attempt to have a known company in good standing, that offer such services, come up with a custom application for our cars?

My first thought was to check up on the possibility of a custom twin-plate carbon clutch. Multi-plate clutches in general and carbon clutches in particular are more often than not fairly more expensive than standard units, but the question is if it wouldn't be worth it for the sake of peace of mind, and in addition carbon clutches enjoy better longevity and relatively cheap rebuild prices. A multi-plate carbon clutch would probably also still be cheaper than an engine rebuild due to thrust bearing failure, while at the same time improving reliability and drivability of the vehicle.

Granted, it has been stated that as long as one use manufacturer specified lubrication fluids and not use the clutch more than necessary - especially when standing still - there is no need to worry. Still, I've also read that one can never be sure to escape this failure and I for one would not mind being able to rely more on the car to behave like any other sports car when it comes to clutch operation.

What do the forum members' think of all this?
 

conaero

Forum Owner
Messages
34,633
Well being one of the unlucky ones and going through this fault on my own car I would personally put it down to 3 contributing factors.

1. Oil
2. Pull clutch
3. Poor quality bearings

What you have to take into consideration is that these failures showed up in the early years and mileage cars.

I would have thought that with the youngest of 3200's approaching 10 years old, if it has not shown up by now, it probably never will.

The only cars I feel it could show up in are cars with sub 20k miles on them.

Keep the oil clean and don't start the engine from cold with your foot on the clutch.