Engine Size: 4.3L
Refrigerant Type: r134a
I just installed a new ac compressor. It looks identical and port and switches are in same place. I installed it and now I noticed i do not have enough gap to pull drive belt around pully. Is this typical of drive belt needing to replace it for a slight bigger one for a replacement of compressor that may be slightly bigger in diameter or I have wrong compressor and i need to replace it for another one? Thanks.
It appears that the clutch/pulley diameter may be larger on the replacement compressor. The compressor for this unit has different variations of clutch sizes. The compressor body and attachments are identical, however, the clutches can be a bit larger. Or you could simply purchase a belt slightly longer than your unit and install this.
Also try to set the belt in all pullers and then slide the belt up over the idler pulley surface last. The outside diameter of the ac pulley may be a much larger diameter than the pulley itself and this may result in the problem that you are encountering.
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I had to replace belt to 1/2 inch longer. Thanks.
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