Kevin in Atlanta

I need a used long cam bolt and a thrush washer for my 87 928. PO's mechanic bent the bolt and another bolt's rounded thrush washer is MIA.

Also, if you also have the two plastic clamps that attach the front seat belt that prevents the seat belt tongue from falling to the floor that would be nice, too.

Thanks.

Opelotus

Have you checked how much new ones would cost?

Mrmerlin

I would not fit a used bolt as you dont have any idea if it has been over torqued,
this is a critical application,
and I would strongly suggest to buy new parts and torque them to spec.
If you happen to install a bolt thats been stretched then it may come loose and damage the keyway and the spider,
resulting in possibly a new cam if you catch it before it causes the belt to come loose or jump teeth.
Yes the new bolt is a bit expensive but a valve job is about 96.354 % more expensive.
YMMV

Kevin in Atlanta

It's not the cost although replacing them all along with the thrush washers is a bit pricey. It's that I am having all powder-coated black anyway.

Mrmerlin

Roger should be able to get you new parts quickly

jon928se

From the WSM the bolt varies depending upon year

It's definitely M10
Grade is either G8.8 or G10 - it will say on the head of the bolt
Length also varies - measure the one you have

Then off to the local metric bolt specialist.

They may also have washers to match the existing.

Dave928S

You really don't want to powdercoat threads and contact surfaces on torque critical bolts and washers.

Kevin in Atlanta

I wasn't planning on powder coating the threads. :-)

Rob Edwards

How about the face of the hex washer against the cam gear? IIRC someone had issues with maintaining the torque on their cam bolts after having the gears coated with DFL-1 (see https://rennlist.com/forums/928-foru...r-updated.html) Not that powdercoat and anti-friction coatings are the same, of course, but the PC might alter the friction between the washer and cam gear face.

God knows I've made things that you never see shinier than they were, but I wouldn't mess with non-standard finishes on any of the critical fasteners.

Kevin in Atlanta

That was an interesting read. Thanks.

Mrmerlin

dont put any coatings on any of the clamping surfaces of the cam bolt or washer or face of the cam gears where the bolt clamping force is needed to keep the gear in position

Kevin in Atlanta

I decided not to powder coat the cam cover hardware. I used my wire wheel to clean them up and I will spray them with clear. Here's a couple of pictures of what they will look like.