Found a great posting on the clean up of a stock air pump posted in 1999. Thanks. Only one thing missing. How do you remove the pulley? Thanks, Herb

 

Remove the three retaining bolts from the front; it comes right off. Unless it's rusted in which case a lil mallet percussion may be required.

 

There are no bolts on the front of what I am looking at. I'm trying to remove the pulley from the front of what I call the air pump. I've also heard it called a smog pump. Aluminum case cast iron cap with 4 hex bolts holding it on. Has a cykinder that spins inside with 2 viens (like apex seals) sticking out. Mine is from an SA22 could it be different?

Herb

 

Mine is an SA as well.... Maybe you're not talking about the pulley (which has a belt groove), but the pulley HUB? The hub doesn't 'come off,' it's part of the shaft.

I'll link up some pix of one diassembled for cleaning; wait one.

 

With rear cover off - - center axle is part of rear cover



Drum Disassembles from inside; take carefull note of vane order and position of removable vane seals




The drum, front shaft bearing, and the hub (as far as I was willing to experiment) don't come apart, but you can clean refurbish the unit without removing them, repacking the vane bearings and cleaning out all the accumulated crud & debris.

The rear cover is press-fit; after removing the screws you have to drive it off carefully with a brass drift or other impact device.

 

A link to the complete Air Pump disection thread..

https://www.rx7club.com/1st-generati...w-info-996339/

 

You know, I'd forgotten I wrote that one - - thought it was buried in my build thread somewhere. Thanks for the re-link!