dynoseritis

Hi-

Posting from Autozone parking lot after getting the broken belt light on the dash. Not enough of the belt is left to identify what size it was.

Seems the previous owner installed some kind of single pulley setup, I did search and read some of the RS pulley threads but the pulley in those pictures looks different than mine.

Is anyone able to take a look at this picture and tell me what size belt to get?

Thanks!

P-daddy

You’d want to use the fan belt from the factory dual belt set up. That’s the inner, closest to the fan, of the 2 belts.

95_993

I believe the inner belt is Porsche 999-192-338-50
Which is 9.5 x 776

dynoseritis

Thanks! That's the one I got. Is this a common mod? The aluminum part locking the two shafts together looks custom.

Endoman

Very common mod, as used on RS model. Had one on for years and then changed to the Clewett system.

levtron

the main benefit is that you only have to change 1 belt, and no special tools required (12 point to hold the shaft being the biggest PITA). All you need now is a 10mm socket to undo the pully.

Downside... It does not charge the battery below 3k RPM... so sitting in traffic for long periods of time could be 'problematic", so find a side street and rev that **** UP!!!

pp000830

Considering:

• If the original poster plans to street drive his car.and
• Even at highway speeds in 6th gear, the rpm doesn't always crack 3000 rpm and
• We know the narrow 9.5 belt is overstressed and so prone to failing at the side of the road pulling just the alternator alone, not even considering the added load from the blower for which it was never designed.

Should the original poster consider converting it back to the stock two belt configuration?
Andy