Worn cam lobe

T.Hanson · Post by **T.Hanson** » Mon Aug 10, 2009 1:02 pm

Cam lobe over number six shows wear. I'm told it's a result of the oil bar not doing a good job of oiling back there. For that I installed the new style retainer bolts.

As the wear seems to be on the pointy end of the lobe, do we put any windage into the adjustment ? As all the others look fine and this one is just visible, I'm inclined to drive it with economic pragmatism. Not that clicky picky.

Mike W. · Post by **Mike W.** » Tue Aug 11, 2009 1:48 pm

#6, that's odd, usually it's #1. That's the only one I even give a close check to, LOL. But adjust it as usual, you will have a couple of thousandths less lift on that valve, but if it's minor I doubt even a dyno let alone seat of the pants would be able to tell. I even put one togther that way on my first E12, just a couple of thou out, caused by a bad rocker arm. Never noticed, nor did it seem to wear any further.

Odometergears · Post by **Odometergears** » Wed Aug 12, 2009 9:24 am

If you or anyone else wants, I have a stock cam that's in great shape in a box ready to be installed. I changed cams for the trubo project I am in the middle of.

Call me if you are interested.

Jeff
757-593-3478

T.Hanson · Post by **T.Hanson** » Wed Aug 12, 2009 9:41 pm

Thanks. Keeping your number for speedo switch to 140, suspecting the gear will fall apart in between. As I have a spare head, just did a rebuild on 528 II, I'm not in the mood to do another tear down.

I'm sure the day I am I'll remember your offer. Maybe I'll call you then and you can laugh.

pmaronoff · Post by **pmaronoff** » Wed Aug 12, 2009 10:11 pm

Could you please tell me where you got the new style retainer bolts.
I have a valve adjustment coming up and would like to put new ones in. Thanks.
Paul

T.Hanson · Post by **T.Hanson** » Thu Aug 13, 2009 9:01 am

Any BMW parts dealer. Maximillian, look on realoem.com.

Odometergears · Post by **Odometergears** » Tue Aug 18, 2009 5:39 pm

just take the old ones to a machine shop or put them on a drill press. They just have a small hole in the head to run safety wire through.

Jeff

Mike W. · Post by **Mike W.** » Wed Aug 19, 2009 12:01 pm

Much cheaper fix is to give the old ones a shot of carb cleaner to degrease and a couple of drops of red locktite to lock them in place. I've never had a locktited one come loose, and I've had some in place for many many miles.

pmaronoff · Post by **pmaronoff** » Wed Aug 19, 2009 2:10 pm

Thank you for all the good tips. When the valve cover comes off we'll see what the best action to take.