Original ac question

[LaOtto70Charger]

So got a question on my original rv2 compressor in a 1970 charger. How easy should the compressor fully rotate when pressurized? I pulled the clutch as the bearing seamed to be making noise. The compressor shaft rotates to a hard point and gets very hard to rotate. Thinking piston is just making pressure but also don't want to force anything and break something.

[John_Kunkel]

You're thinking correctly, any compressor will become harder to turn as it reaches the top of the compression stroke.

[LaOtto70Charger]

Thank you. The torque was just getting to the i might need a longer wrench part. So figured I should check.  I break enough things as it is.

[GMP440]

 Definetly harder than the more modern Sandens and Denso compressors.  When a V2 compressor is uncharged it rotates easy and is quiet.  Once it builds up pressure they take more power to rotate and become a little more noisy.

[John_Kunkel]

Even though the Sanden is often called a "rotary" compressor, it's just a bunch of smaller pistons driven by a wobble plate instead of a crankshaft. The larger number of smaller pistons makes it easier to turn on the compression stroke.