'67 CL77 front brake brace bolts

[Snakeoil]

The bolt that holds the lower portion of the front brake brace on my '67 CL77 with Type 2 fork legs appears to be longer than it should be. Parts book does not list a size. The bolt bottoms out on the brake plate before it tightens on the brace. This could be intentional because the upper bolt goes thru a flanged bushing that allows the brace to swivel. But there is no such flange on the lower portion and I see no reason for this brace to move anyway.

Can somebody tell me what the correct length for this bolt should be? Or maybe it's just easier to ask if the bolt should snug up on the brace or bottom out on the threads/hole and allow the brace to be slightly loose?

Thanks,
Rob

[LOUD MOUSE]

Measure and cut to fit?. ...........lm

The bolt that holds the lower portion of the front brake brace on my '67 CL77 with Type 2 fork legs appears to be longer than it should be. Parts book does not list a size. The bolt bottoms out on the brake plate before it tightens on the brace. This could be intentional because the upper bolt goes thru a flanged bushing that allows the brace to swivel. But there is no such flange on the lower portion and I see no reason for this brace to move anyway.

Can somebody tell me what the correct length for this bolt should be? Or maybe it's just easier to ask if the bolt should snug up on the brace or bottom out on the threads/hole and allow the brace to be slightly loose?

Thanks,
Rob

[Snakeoil]

Makit it fit is not the problem, LM. I'm a formally trained machinist. I was asking what the fit should be. I assume my feeling that everything should lock up tight is correct. I just cannot understand why they put that flanged bushing in the top hole. Very strange.

regards,
Rob

[LOUD MOUSE]

I think ya may want to consider ya have a bolt which is longer than the one which works and ya could/may want to make it fit or get one which will fit.
If it's to long it's to long!
The correct bolt will fit and have a shouldered area near the head. ...........lm

Makit it fit is not the problem, LM. I'm a formally trained machinist. I was asking what the fit should be. I assume my feeling that everything should lock up tight is correct. I just cannot understand why they put that flanged bushing in the top hole. Very strange.

regards,
Rob

[FAST FRED]

Rob, the bolt does have a special part number amd is kind of a dowel bolt that has been sized to fit the bushing properly' This pivot allows the brake backing plate to float as the brake linings wear ( I think).

Fast Fred

[LOUD MOUSE]

The plate Does Not Float. .............lm

Rob, the bolt does have a special part number amd is kind of a dowel bolt that has been sized to fit the bushing properly' This pivot allows the brake backing plate to float as the brake linings wear ( I think).

Fast Fred

[Snakeoil]

Rob, the bolt does have a special part number amd is kind of a dowel bolt that has been sized to fit the bushing properly' This pivot allows the brake backing plate to float as the brake linings wear ( I think). Fast Fred

Thanks Fred and LM. This is what I was looking for. I suspected it was not the right bolt and I did notice that it had a special part number in the book. My intial thought is it was a hardened bolt.

There is no bushing for the lower hole so it appears that it should snug up properly, which it doesn't so this bolt, although a correct period bolt, is not the right length. This one actually cannot be trimmed because the threaded portion ending too soon is also a problem. No spacers shown in the parts book so I'll just have install the correct bolt size. I can turn a small bushing to emulate the shouldered portion of the upper bolt.

The entire assembly seems to be a contradiction of designs. The brake plate is fixed, yet the brace has a bushing on the top to allow movement and none on the bottom thus preventing movement. I suspect they let a team design this one. Oh well.

regards,
Rob