Clutch and Flywheel Dowels...

[geoberni]

Bit of a random question, what importance are the Flywheel Dowels?

It didn't even occur to me when I took it off a few days ago, but the old clutch assy I've removed, fitted heaven knows when, didn't have dowel holes ; but the flywheel has the holes where the dowels have been removed.
Should I get a pair of dowels to help line up the new clutch assy?

I'm guessing the answer is that they are important to getting the clutch cover in the right place, rather than just rely on the 6 bolts...

20230708_175450.jpg (1.27 MiB) Viewed 293 times

[les]

Dowels are more of an interference fit than bolts, so your answer is correct.

[philthehill]

As above the dowels are important for cover location.
The cover shown above appears to have the dowel location bosses but not drilled.
I would advise that you get a pair of new dowels and if you are going to use the cover shown drill carefully through the two bosses.
Here are the required dowels:-
https://www.moss-europe.co.uk/dowel-clu ... soc=137921

[geoberni]

Thanks guys,
I only cottoned on to the problem when the new clutch arrived today and it suddenly struck me that the old one had fewer holes.
I should have looked at it more when I removed it and then I could have ordered dowels at the same time.
Very strange that the old one doesn't have dowel holes.
My guess is it's the one fitted when the engine was fitted some 20+ years ago.
I've no idea of the car's mileage as the odometer was broken for several MOTs.
There's no identifying details on the clutch, other than MADE IN BRITAIN on the plate, but some very odd marks on the disc the Thrust Bearing acts upon.
How does a 'spinny thing' get lines across it? I can't understand it.
They aren't scratches you can detect with a finger nail, just some sort of scuff mark
.

20230712_134130.jpg (2.26 MiB) Viewed 273 times

I've ordered a pair from ESM, I wasn't sure how long Moss might take.

[geoberni]

Related to changing this clutch, a question about replacing the thrust bearing. My first time changing a Minor Clutch...
A few years back there was this discussion about whether the Carbon Thrust bearing should be soaked in oil before fitting?
viewtopic.php?t=68078

Should the face of the Carbon Bearing be dry or greased?

The generic/universal fitting instructions for the Borg & Beck kit I've got aren't helping....
Drawing 12 says to grease, with the stuff supplied in the kit, the contact faces and the bore of the release bearing .
I'm reading the contact faces as being the two pivot surfaces, but should the face of the actual thrust bearing be greased?

I can't see what the purpose is to grease the inside bore of the bearing, what could it touch?
But should I grease the front face?

Clutch.jpg (751.95 KiB) Viewed 223 times

[taupe]

Should the face of the Carbon Bearing be dry or greased?

.....should I grease the front face?


Clutch.jpg

NO its a carbon thrust bearing and is designed to run dry

Taupe