Breaking in new Cam and Rockers in an M20

[EyExR]

Its where the old mechanical distributor went, drivers side of the engine, just above the pump. A diagram on realoem will help visualize.

This is what I did and it worked. But I have to say, that dropping the hex shaft into the block is a very easy mistake to make when doing this procedure. I lucked out and managed to drop it right back in place but it was nerve wracking!

[TobyB]

You don't want to go to 2500rpm until the engine is at normal temperature.

The cams I have used have said to go to 2500 as soon as possible. So I do.

I also use either a ZDDP additive or proper break- in oil. I had a cam eat itself
once, and that was quite enough, thank you! It's too cheap to use to NOT use it.

t

[Earendil]

Okay, followup question after reading two different opinions (on non-BMW engines). Do I moly lube ONLY where the camshaft touches the head, or do I lube where it touches the rockers as well?

[Earendil]

Well. Parts arrived. Camshaft looks like it has defects. Any thoughts?

[digger]

Okay, followup question after reading two different opinions (on non-BMW engines). Do I moly lube ONLY where the camshaft touches the head, or do I lube where it touches the rockers as well?

on rockers and lobes to