Quote:
Originally Posted by da_trem
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That looks like an OAP, and not an OAD which has a torsion spring in additon to the one way clutch. The OAD is approximately three times the cost. An OAP will help, but as demonstrated in the video TDIwyse posted the OAD is the most optimal. So, cost versus performance is optimal also.
You would need a spacer to fit that pulley to a 335d and a different spacer for an x5d for reference.
Tucson's pulley is the OAD type.
Andrew, which type did you choose?
The m57 engine's automotive engineers made the drive belt system have enough belt wrap, specified enough belt width, and tensioner force to not have the need for an OAP or OAD. However, fitting an OAD may allow the stock harmonic balancer to have a longer mtbf or last the life of the car. Testing will reveal. This may obviate the need to use an aftermarket harmonic balancer.