What do you make of this?
- Thread starter Rob Farmer
- Start date
I'd check your small end bearings as well, that gudgeon pin hole looks a little worn
Poor hardening during production, old age, oil supply problem?
Shep
Poor hardening during production, old age, oil supply problem?
Shep
Paul Rochdale
Registered user
The case hardening has been wrecked probably caused by dirty or old oil.
VW PD (TDi 115 ~ 150's )engines do that to their cam followers and end up wearing a dish and if not changed they can go right through them
Bad case hardening
Why change the cam is it badly worn or squared off ??
Usually these followers are much softer than the cams especially when they start to break up
Bad case hardening
Why change the cam is it badly worn or squared off ??
Usually these followers are much softer than the cams especially when they start to break up
guzzi do it too, they go on for years. i'm the only person i've ever heard of changing them.
seen similar wear on other bmw airheads, although that looks quite a bad one.
can't speak for bmw followers, but new guzzi items are convex. used ones never are.
seen similar wear on other bmw airheads, although that looks quite a bad one.
can't speak for bmw followers, but new guzzi items are convex. used ones never are.
Do you have to fit a new cam when you fit the new followers?
on some engines flat cam followers are normally matched to a cam with a slight taper on it to encourage the follower to spin, convex followers also open the valve in a different pattern to the flat followers IIRC
Shep
On the airheads only half of the followers surface sits on the cam. This makes the follower turn. My cam looks likes it's worn. Anybody got a standard airhead 308 cam laying about?
Probably, I'll check this afternoon
I've got no cam followers tho'
used em all up after a bad case of case hardening failure on the original PD engine.. now, all the nice ones are in the '85 R100 engined '93 Paralever PD 
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