Just pulled a 1992 RS 3.1 out of a back yard and am trying to restore to factory. Has been sitting for 4 years and the smog pump is seized up. Is there a way to bypass? Is there a belt that will work if pump is removed?

 

To eliminate the smog pump the best way to go is to find an idler setup. This idler looks like a spider with a pulley for a snout. Came on the 2.8's of 88-89 MY (or so, not sure of the exact MY). I do know that '89s came with them, no air pump on the auto equiped models (unless maybe if you are in Cali).

Use that and the serp belt for that year.

You can just remove the pump and run a shorter belt. But this causes the belt to whip along the long unsupported length. Not good for the accessory brackets and such. Along with causing a vibration.

RBob.

 

It might be easier to replace the pump with a new one rather than try to fabricate something mickey-mouse style to replace it.

And you'll remain smog-legal that way.

 

Thanks for tha input! In prolly gonna go ahead and replace the smog pump but ive been having probs finding used parts from the wrecking yards in my area. Might just have to go new...

 

So using GM factory parts from an f-body, on an f-body of the same engine, is Mickey-Mouse?

Good luck purchasing a NEW AIR pump. And even better luck with a junkyard part. They seize up when not run on a regular basis.

RBob.

 

Hit the jackpot guys!!! Just found a yard that just pulled in a 91 camaro 4 days ago and hasnt been picked over. Taking Smog pump, Fuel tank, rear suspension/ rear end Steering colum, and lots of little interior, seat tracks ect. what ever else I can afford right now.