[car_era]

Newbie here, 1981 911SC with 220,000+ miles. I've had it for a few months and just had a shop fix some known issues - triangle of death oil leaks, new clutch and flywheel, new breather hoses, new starter.

Before I took the car into the shop it leaked massive amounts of oil, though when I took the oil filler cap off the RPM's would drop a lot, but never stall. It also never stalled at idle and ran at steady RPM's at idle during warm up.

When I picked it up from the shop the oil leaks and clutch are taken care of, however the shop told me it's now stalling when the oil cap is taken off. They said this is a separate issue and it will need to come back to diagnose and fix. Also, they mentioned that before the fix one of the breather hoses was completely collapsed and blocked, and the brand-new breather hoses may be causing this problem to show itself.

The shop also said that the idle was set too high when it arrived to them at 1,100 rpms, but when they tried to decrease it to the correct 900 RPM's it stalled so they increase it back to 1100 and said I should get that fixed in the future too.

On my drive home it stalled twice when I depressed the clutch pedal (RPM's dived lower than normal each time the clutch was depressed, but it usually recovered back to idle right before stall - except twice it went dead.)

Now home three days later, when I start it up, it revs up and down when i first start it up. About one second up to higher RPM's and one second down to lower for the first few minutes it's warming up.

SO - what may be going on here? What would you look at to start going through this? And is the shop accountable to fix this up as a part of the work they did? Or are they right that this should be considered a separate issue from what they worked on? Thanks for helping me get my mind around it.