Clutch and clutch disc question

[Foxen]

I'm not sure which clutch disc I have on my -62 super major, it's a single stage clutch only so my guess is that the disc is at least a 12" one... The question is simply, if I now have a 12" disc, could I replace that one with a 13" one without having to change anything else?

Edit:
If I happen to have an 11" clutch instead, can I simply fit the 13" pressure plate and a 13" disc instead? Or do I have to modify the flywheel for that?

[Brian]

You cannot put a 13" clutch on an 11" flywheel. You would need flywheel as well as thrust bearing assembly. The best you could do is put in an 11" heavy duty disc with spacers. (If these are still available).

[Foxen]

Then I suppose I had better hope I have an 13" clutch plate, can it be seen from somewhere on the outside which type I have?

[Brian]

13" clutches usually have a thrust bearing lubricator on the side near the belt pulley. Its a cap that you fill with grease and turn once a week.

[Foxen]

13" clutches usually have a thrust bearing lubricator on the side near the belt pulley. Its a cap that you fill with grease and turn once a week.

And these are never fitted to 11" clutches? If that is the case I am lucky, because I have one such grease cap...

[Brian]

You are indeed lucky! Buy a lottery ticket TODAY!!!

[Foxen]

Thanks Brian, might just go and buy one
Good to know what I've got if I have to swap it someday... If I then have a 12" disc, can that be changed to a 13" instead?

[Brian]

I don't think there were 12" discs. The only ones I ever came across were 11", 11" Heavy Duty and 13".

That is not to say others were not used in different markets. I never knew that E1A range could have an oil immersed clutch until Barry M sent me the full details.

[Foxen]

Well, the day my clutch gives up to me I can report on what disc it was, me and the tractor live in Sweden