Big blocks at the Tonawanda engine plant 1969

[scuncio]

Cool picture, looks to be a protective “shipping cap” installed over the refrigerant ports on the A/C compressor.

[SS427]

Originally Posted by scuncio

Cool picture, looks to be a protective “shipping cap” installed over the refrigerant ports on the A/C compressor.

I don't know for a fact but believe that is done because they pre oil the compressor and add more and than apply a vacuum seal to it to keep all moisture out of it.