SOURCE

These clearances were chosen for 0.15/0.20. With clearances of 0.25/0.30 the motor was noisy at idle. Some set the clearances as per the manual at 0.28/0.35 and it runs quietly, but no matter what optimal rockers you choose there is always wear present and with factory clearances there will be knocking.

Зазор выставил, завожу, тишина… слышен звук работы форсунок.