I heard an intermittent squeal at idle from the engine compartment yesterday, while taking my wife's '78 911SC out for a day trip. The AC compressor was stalling in an irregular way, causing the belt to drag. I shut it off to keep from ruining the whole mess. Thankful that I could remove the Targa top, I would have melted without AC or an open top.
So, Where to begin? It wasn't difficult to spin the compressor pulley by hand. It blows pretty cold, but probably not as cold as it should.
This car's a basketcase
