Cush drive

[Bess]

Hi Chris,
             There are 2 different sets of rubbers, early set up to 1965, later set from 1966. The clutch centre and spider also changed, it might be worth investigating before going further. Suppliers are notorious for quoting both part numbers claiming they'll fit.

From experience you might have a mix and match in your engine, I have some spares which I maybe able to open if it helps.

Best wishes...

[chrisx1]

Oh, I wonder if that's the problem. My engine is 67 of course can't guarantee that the clutch is.

[Spaceman]

I think BESS is referring to the change in 1966 from a 4-spring clutch to a 3-spring clutch. The earlier cush rubbers are completely different from the ones you have for your 3-spring clutch - they are more like buttons in shape and much thinner than the ones you have. If you had any of the earlier ones, they would simply drop into place in your clutch and would be impossible to mistake for the correct ones.

[chrisx1]

Gone to it this morning dropped one in with hardly any effort, then got my wife to help with the other two which went in also relatively easy.
It's a weird world. 😂

[chrisx1]

This is the amount of force used yesterday. That was a straight bar when I started.

[cdsdorset]

If you chill them they shrink slightly and are more rigid making them easier to insert. Well it worked for me on the ladt 5 sets ive fitted.

[DAVE BRADY]

Hi,

Thanks for the clarification re chilling the rubbers.

Dave.

[cdsdorset]

Ive got a bar just like that

[Bess]

Hi Chris,
              Pleased to hear you succeeded.

To improve operation there was an internal change to the cush in 1970, described in a parts service bulletin, I don't think the change aided rubber installation.

Best wishes...

[chrisx1]

Thanks for all the replies guys. If I ever have to do it again, I will try the chiller method.