C2 Compressors Round or rectangular holes

[Al R.]

I've seen pictures of many C2 A6 compressors with either round holes or rectangular holes in the pulley/clutch device. Which is correct or are both correct? I haven't been able to turn up anything conclusive in my archive search. I remember reading an article in the Restorer some time ago, but can't remember which issue it was in. As always, thanks. AL

[Mike G.]

Re: C2 Compressors Round or rectangular holes

The round holes are the early configuration. Don't know when the larger cutouts were introduced.

[Wayne M.]

Re: C2 Compressors Round or rectangular holes

I've seen pictures of many C2 A6 compressors with either round holes or rectangular holes in the pulley/clutch device. Which is correct or are both correct? I haven't been able to turn up anything conclusive in my archive search. I remember reading an article in the Restorer some time ago, but can't remember which issue it was in. As always, thanks. AL

I assume you are talking about '67s. I can't offer an answer for that model year, but up to (at least) September of '64 (based on back head '302' casting date) the 8 round holes are the rule, rather than the 3 elongated rectangles. Others should be able to say if this continues into the '66 and '67 model years. Problem is, most clutches have been replaced over the last 40+ years.

Another related question is when did the external case change from front swage to crimp ? Sometime after 1965 MY for sure.



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[Al R.]

Re: C2 Compressors Round or rectangular holes

The March 67 compressor on my car that was replaced under warranty has the rectangular holes, so I wasn't sure. BTW I have a 3rd week Feb 67 car.