1972 BB Convertible in Atomic Orange Color

General discussion about C3 Corvettes
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vito
Senior Corvette Addict
Senior Corvette Addict
Posts: 1941
Joined: Jun 22nd, 2010 11:32 am
Tell us about your Corvette: 1972 Stingray Convertible , BB 454, 4-Speed.
Location: Okinawa Japan

Re: 1972 BB Convertible in Atomic Orange Color

Post by vito » Apr 21st, 2017 7:14 pm

This compressor is an open type, meaning that the crankshaft protrudes through the housing and is external driven. I have had this in a bag since I removed it to keep it clean and somewhat air tight. The compressor didn’t mount correctly last time so I am going to figure out why.

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This is what the front brackets look like. Notice that I am missing the rear compressor ear. This means that I need to rotate the compressor. But which way? The oil fill plug cannot go lower than 3 or 9 o-clock. So do yourself a favor and put it on the fender side. This will make adding oil easier.

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Oil fill to the outside, and the suction service valve will mount to the top rear.

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After I mounted the front and rear brackets the problem was obvious.

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And here is the problem. You need the correct length spacers. The compressor pulley needs to be inline with the other pulleys.

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I measured all the spacers and this is what I found.

Large spacer. Design length: 1.875, actual length: 1.770
Small spacer. Design length: 0.680. actual length: 0.650

so off to the store.... :bang: