So I fried my serpentine belt. Luckily it was in the parking lot leaving my apartment complex so shouldn't be any damage to the engine..

It is a R53...2002. I am the third owner, the first did some work to the car...lowered it...cambered back wheels....JCW exhaust...possibly more, not sure.

I am looking at the super charger pulley and cannot determine what it is. Looks like it might be a madness mini cooper pulley...
http://www.madnessmotorworks.com/mad...harger-pulley/

however, not sure if it is the 15% or 19%. Trying to identify this before ordering a belt.

Any thoughts? Would the tensioner take care of any difference between the 15% or 19%? Or is the pulley in fact stock?




Thanks

 

That's definitely not stock - OEM is pressed on.
From another site: Stock pulley is 2.58" ~ 65.5mm
15% was much more popular than 19% so odds are it's 15. But if it were 19 you'd want a shorter belt.

 

Buy both..but I would also vote for 15%. Napa carries the gates (Napa) 15%.. Do you have the shredded belt? They should be able to match the length.

 

id go with the 15% 19% was rare, but more popular around that time.....


get both belts? and then return one, or if you still have the other belt, you can measure it

 

You could just go old school and measure it and be sure.
Stock 65.5mm <- as a baseline
15% 55.675mm
17% 54.365mm
19% 53.055mm

 

Good suggestion on measurement. DIY here if needed.