|
All I can go by is what my paper manuals say.... and the gas lip seals back then were the ones which were the upgrade and into the future ones to use... they could have been changed by MB ...but to me the gas lip were clearly the better sealing type.... ask Whunter... he should have the latest info .....but I would be surprised if you are supposed to have the non gas lip seals on a turbo engine... even the NA engines were being changed to that as the recommendation.... perhaps the wrong valve guides were installed making the gas lip seals not usable..
While certainly " hammering " while installing the valve stem seals is not appropriate.... a good hit with the flat of the hand ON THE FACTORY SPECIFIED INSTALLER is justified enough to seat the gas lips.... as per the FSM....
|