Clutch bolt worked there way out.

[Duddy 6]

I changed the clutch fiber disk put everything back the way it came off.  After running it for and a 1.5 hours the bolts all backed out.  Does anyone know why this could happen. 

[ol550 863]

Did you install the 2 lock plates and bend them to lock the bolts?

[JoeM 9,954]

Clean the bolts and threads up with carb cleaner and put a spot of blue removable locktite on each bolt and reinstall, 8 ft lbs torque.

[953 nut 66,199]

Those plates were intended to distribute the torque across the disc. 

[ri702bill 12,141]

46 minutes ago, 953 nut said:

Those plates were intended to distribute the torque across the disc. 

AND to retain the inner race sleeve #40.....

[Duddy 6]

Yes I did put those plates on and I might forgot to add blue lock tight.  Could that be the only problem is I forgot lock tight.

[kpinnc 18,275]

51 minutes ago, Duddy said:

Yes I did put those plates on and I might forgot to add blue lock tight.  Could that be the only problem is I forgot lock tight.

 

Most likely. I've never had any loosen that had loctite on them. 

 

One thing of note: make sure the retaining plates are nice and flat. Sometimes overzealous folks apply too much torque and bend them. If they have a bend just lie them on flat steel and tap flat with a hammer. 

[squonk 46,608]

I never had any loosen without Loctite. 

[Duddy 6]

I will have to give it a try when I get the new parts.  Since when the bolts came out I lost them. 

[lynnmor 8,828]

I wonder if the clutch plate thickness is different than the dimension from the groove to the end of part 40.  Is this an aftermarket clutch plate? 

[Duddy 6]

It could be not to sure.  It did fit on the part 40 It did fit snug.