Troubleshooting OAD's

[@konstantin-big]

What is the difference between OAP and OAD??? Can we see the difference with eyes???

[@mycamera_lens]

Can we use OAD in place of OAP pulley? The engine is Fiat 1.9D

[@Litens-Aftermarket]

It is recommended if your vehicle when new had an OAP installed then you should continue using that same pulley type.

[@mycamera_lens]

@@Litens-Aftermarket thank you very much

[@brentfrommemphistcb7091]

Noise sounds like R2D2