Just wondering if one last attempt of trying to quieten down the tappets a little before I get to inspect them, could be to use Liqui Moly Oil Saver to increase the oil viscosity.
Don't want to change the oil again.
Maybe a bit more pressure and viscosity may help them slightly or maybe I'm just throwing my money away?
Or at least it may seal up the camshaft support gasket (that leaks very slightly on one bolt), and the valve oil seals as I heard it swells up the gaskets a little.
Has been burning up some more oil lately. Still very good compression though so probably not the piston rings.
I heard 'Esters soften them, and the "swelling" that occurs is just a reversing of the slight shrinking that occurs'.
I used 300V double Ester oil last year!
also interesting(my mechanic only replaced the tappets at 120,000kms NOT cams). Here INA highly recommend changing both as a set.
Replacement every 120,000 km
When overhauling engines with
more than 120,000 driven kilometres,
be sure to replace the hydraulic valve lash adjustment
components. Due to the narrow system tolerances, hydraulic
components have then generally reached or even exceeded their
Always replace in a set
If one or more hydraulic valve lash adjustment component(s) is
damaged, the whole set of components should be replaced. If
only single components are replaced, the valve lift may not be
equal for all parts due to different amounts of oil released
through the leakage gap. This may result in a faulty valve closing,
and eventually in a burnt valve seating. In order to avoid repeated
repairs and subsequent additional costs for the customer, we
strongly recommend replacing the complete finger follower set.
New camshaft – new hydraulic bucket tappet
When replacing hydraulic bucket tappets, the camshaft must
always be replaced as well and vice versa. Due to the wear
pattern on the bucket tappet bottom and cam track, matching
new and worn parts will result in short service life of the components.