Replacing Camshaft

[GreekDriver]

Our E34 M20 needs a new camshaft. It's worn. Not really worn, but worn. Everything else looks good.

What parts would be smart to replace while doing this? What seals and stuff will I need to order?

Thanks!

[Jordan]

Full rebuild of the head.

12 new rockers, 12 new valve stem seals, 2 newrocker shafts3 angle valve grind, new cam seal, new "doghouse" seals, resurfaced head.

That is the minimum amount of work I would do if the head is going to be pulled.

[GreekDriver]

Oh, and it leaks oil, from the bottom. Oil Pan Gasket? What other gaskets should be replaced that aren't that difficult?

[GreekDriver]

Full rebuild of the head.

12 new rockers, 12 new valve stem seals, 3 angle valve grind, new cam seal, ne "doghouse" seals, resurfaced head.

That is the minimum amount of work I would do if the head is going to be pulled.

Damn, the car has 70,000 miles. I guess I'd look into that, all the other parts look good though. I'll check the funds.

[Jordan]

If the cam is worn enough to need replacing I would be VERY worried about the rest of the engines internals.....

[M-technik-3]

How did you determine that this cam was wearing prematurely? Did you have a way of measuring the lift and duration of the lobes? Or are you just taking a wag at it?

[Den]

BMW cams typically last a lot longer than 70k miles, more like 200-250k. I would guess that either your M20 has an oil starvation problem in the head or it has a lot more than 70k on it.

[AdamF 88iS]

BMW cams typically last a lot longer than 70k miles, more like 200-250k. I would guess that either your M20 has an oil starvation problem in the head or it has a lot more than 70k on it.

True story.