Lee Gilchrist

Looking for directions on how to measure a super charger pulley to see what size it is. The seller of the car told me when he bought it the original owner said it had not been changed and was factory. Well the bolt has been tampered with before because you can see where a wrench has slipped on the outside of the bolt. When I hold up my 77 mm pulley that I am installing up to it it doesn't look that much smaller. Hoping someone can tell me then proper way to measure it
thanks
Lee

nd-photo.nl

Which belt is on it (belt size)?

Th pulley might have been serviced (new bearing), which is pretty common

Lee Gilchrist

Could have been a bearing swap. It spins freely on the car. All numbers have worn off of the belt. When I bought the car is was in need of a lot of TLC. I am taking it one step at a time. I will measure the belt when I change the pulley.