Ticking noise caused by worn valve tips?.

[turquise1]

Originally Posted by andrewwynn

Worn valve should push harder on lifter but still could be lifter related. If the lifter has a favored position it may not compress quite enough.

I would try both thicker and thinner oil.

On the N52 BMW has a procedure to reduce the tick that basically is keep the revs high under power for 30 minute (eg use m/s to hold to 1 gear lower). I would try the same procedure on both higher and lower viscosity oil.

Hey Andrew,

I have already tried those options and they did not fix the problem unfortunately.

I have tried Purplefade's method and found out there is no space between camshaft bores and any of the lifters at any turning point so that is not the problem either.

I have checked all the lifters once again and they all look good. They are full of oil and none of them looked stuck. (They are hard to compress because they are full of oil).

I will work on replacing all the valve stem seals next week. Maybe I can see something once the springs are out..

Thanks,

Ozzie