ID this Troopy crank pulley?

[erics]

In looking to reconfigure my belts I noticed that the pulleys on the Troopy didn't both line up with the water pump pulleys. Finally got to mess with it this past weekend and here's what came off (on the left) compared to a standard two groove crank pulley set.

Anyone know anything about this? I'm thinking it might be a special hot-climate option (this is a middle east '79ish fj45 troopie) intended to spin the A/C compressor faster as lower engine rpms??

Can anyone look up the part number for me?

thanks

 

[cruiserbrett]

its a later non us crank pulley for A/C, basically a FJ60 pulley without the forwardmost groove. Only the wide groove lines up with the water pump pulley rear groove.

on the right is the common non A/C 2F pulley.

 

[erics]

thanks, that's what I expected... can anyone confirm why the rear most pulley on the non-us version is so much larger in diameter? Does a US three groove A/C pulley set have a larger diameter pulley for the a/c as well?

 

[cruiserbrett]

yes. on fj40/55/60 the A/C groove is larger. I guess so it will spin the compressor faster.