Perkins 4 236 Belt Idler

[BonesD]

Hello, I have a 70’s model Perkins 4-236
and I was starting work on the refrigeration system today and the compressor belt is loose. It looks relatively new but I will replace it anyway I magine.
Anyway the belt adjustment is a cam operated thing and I was wondering if there is a spring loaded replacement available for it. Below is original part n the middle. The belt only goes to the compressor, idler and crank.
Thanks

 

[BonesD]

Anyone

I thought I would reply to myself and see if anyone else might respond this time.

 

[sunchaser]

Too bad Flywright isn't here, he could send you some pictures of what he did for installing a bigger alternator on same engine. Have you tried an automotive AC shop?

An on engine compressor for AC is pretty unusual on boats so not a lot of responders. Your alternator is on it's own belt?