Paul Waterloo

My AC/alternator belt started squealing recently, I tightened it up once, but went to do it again and I see the forward top AC mounting bolt was sheared. At least part of the threads are showing on the back side of it so I should be able to get it out.

This same thing happened on my 968.....WTF?

I guess put it on the to-do list, I did tighten the belt a little and the squealing is limited to about 20 seconds after start up. However, I won't run the AC until it's fixed.

My fix on the speed / reference sensors with new wiring to the DME is now considered a success, it used to die after the car got heat soaked and I would have to wiggle them around to get it going again.

The recent alignment and rebuild of the front A arms is also a success, just a few little items left to fully sort the car.

V2Rocket

When you tightened the belt tensioner, did you first loosen the two pivot/hanger bolts from which the compressor hangs?

Paul Waterloo

No I did not.....I did loose the belt tensioner bolts....but not the AC compressor, sounds like that could be an issue.

V2Rocket

Yea, I've seen a few of those bolts broken over the years (or worse, snapped off ears on the compressor $$$$$).

The rear bolt is hard to get to and people tend to gorilla the **** out of it when tightening or just ignore it altogether.

PEvans

I was one of those with one of the compressor bolt ears broken off. I can't tell from your description if that is what your issue is, but I'm here to tell you it does happen. The symptom was a un-fixable squealing belt; I'm not sure the broken part was really visible until we got the compressor out.

I ended up replacing the compressor and doing a refrigerant conversion with parts from griffiths.com. At bit expensive but done right.