The Air Pump on my '83 has frozen solid, so the belt is no longer turning the radiator cooling fan. Short of spending $1100+ for a new air pump, any ideas on how to restore cooling? Thanks.....

 

Ouch.

I think someone said the other day you could pull the guts out of the air pump so the pulley is basically turning freely. You could also look for a belt that just goes around the crank to the fan. Try doing a search on 'air pump delete' or similar stuff. Several people have done it but I'm not sure how or whether that would negatively affect your particular setup.

Check threads over the past few days for 'air pump' too.

One issue with the shorter belt is that there's no way to tighten it, I guess you just loosen the fan bracket, but the belt on and then replace it with the belt on, but I don't know how well this would work.

 

Or, find a used Euro pulley- got mine for about 50 bux off Ebay.
But their scarce, I'd go the shorter belt route, if a visual inspection of your emissions equip isn't likely to be an issue. a search should yield the right one for the application.

 

Could you post pictures of this and maybe some more details.
Thanks

 

or just put in an electric fan. I've got a new summit s blade 2300cfm unit I could send you, I went w/duals and a devek shroud for the stroker, but a single electric is fine for most street driving/stock motors. it's just collecting dust in my garage...

 

Here is an ealier post on the short belt: https://rennlist.com/forums/showthre...ump+short+belt


If you need an air pump I have a good used one form the parts car ($50), just send me a PM (Personal Message)

 

Depending on where you live, you may need the air pump to pass smog. I've seen rebuilds go for $75 - $150, the $1100 figure must be for a new one from Porsche.

 

I have a brand new one you can have for $200 + shipping.
No use for it and you do!
PM me

 

My air pump did the same thing this past weekend... Think I've scared her into thinkin' she's gonna have to run another 75K miles

 

If you go to an electric fan, that means you need a short belt as well, but it should be adjustable with the air pump?

I am looking at a OBDII cat which doesn't require air injection, but I am not sure if I can remove the pump "legally" in Calif yet. I think Calif is about to adjust the rules for pre OBD cars and new cats, but thats just a notion I got from talking to a guy at CARB.

 

Please explain that statement.

 

The air pump is used to tighten the belt that is common with the radiator fan?

Remove the radiator fan, leave the air pump, and I am wondering if the adjustment for the air pump will still tighten the belt?

 

Read his initial post, pump is frozen.
https://rennlist.com/forums/928-forum/318622-new-928-owner.html
https://rennlist.com/forums/928-forum/315172-need-air-smog-pump-belt-size.html

 

I was just hijacking the OP thread with my own question. OP is thinking of removing air pump and leaving fan, me vice versa. Getting rid of both even better, but I need to wait on that.

 

I kept my airpump when I converted to electric fans. shorter belt works fine.