[geostasis]

I took my somewhat long in the tooth (1988) 911 to the shop earlier this week for a service and a new clutch. Since the engine was dropped anyway, I also asked for a valve adjustment since I have been getting some distinct clacking/ticking.

Got the call yesterday PM: one of the lobes on the right cam has a pit (wear?) and needs to be replaced. Since one needs to be replaced, I'm getting advised that I should replace both cams, all the rockers, all the chain rails, valve springs, and the valves.

I'm in 3K right now and would like to spread the repair cost over some time, so a couple of questions:

1) What is the risk of driving with a pitted cam lobe?
2) Would cam pitting cause excessive ticking, or should I be suspicious about other causes such as valve guide wear?
3) What questions should I be asking as I figure this out?
4) Are there any engine rebuild shops which are highly recommended for street vs race/track cars? Price is important, but not the only consideration.

I have the Wayne Dempsey "How to Rebuild and Modify Porsche 911 Engines 65 - '89" and will be reading it cover to cover this weekend.

Other stats:
* 1Qt Oil per 1000 miles or so
* Car is a weekender vs daily driver, but I do occasionally take longer trips

Thanks all