My smog pump went bad on my 87 vert. The bearings went bad which caused it to make noises when the car is in idle etc..
Anyhow the first time this happened 2 years ago I went to a mechanic and he used a stethoscope and located the problem to be within the smog pump. So I went out to an auto parts store and bought a new one. I installed it and and that cured the problem.
However it has happened again.. and this time was told its from the same place. So I went to the store and bought another and to my surprise the smog pump itself is designed differently. I went to several different stores and noticed the same thing.
I'm unable to use the new ones because on my old one there is a spacer of some sort sititng on top where the pulley goes onto. There is a nipple in which the pulley sits snug onto before you bolt the pulley into position. These new smog pumps dont have this. They have a flat surface with a fat nipple in the middle. It's incompatible with the pulley that I have. What do I do?? I was told to go to a machinist and have them take it off and press it onto the new one. Why should I have to do that when they made the smog pumps just fine before and now all of a sudden its a different design ??? :confused:

I can't drive the car now and don't want to be stranded because the bearings all of a sudden caused it to stop working. Help me out guys ! Thanks.

 

Give a call to Contemporary Corvette (link on my site), they vend new Vette parts and have a large Vette bone yard.

 

Thanks. I gave them a call and was told the spacer should be loose after taking the pulley off. Since mine is on good I might have to pry it off and add it to the new one. Now why didn't I think of that ?? :confused: :bb :lolg: