Hi.
Rocker cover off today to sort a noisy tappet (Thanks for feeler tip, with engine running Pete Lewis, worked a treat).
I did notice that the first 6 rockers did not have oil dribbling out of the top holes (in the past there was none coming from 2,3 and 4 rockers, so this has got worse).
There is oil between the valves and rockers and it pools in the recesses at the top of the push rod holes on the top of the head.
Engine has good oil pressure, according to the gauge so assuming it's sludge in shaft.
Should I be bothered by this as maybe getting worse and clean out the shaft. If so the end caps look like they a held by some sort of pin, that looks like the tops have maybe been peened, though a bit difficult to see.
I gather engine flush not a great idea (and would it clean the shaft) on an old engine that appears to have some sludge deposits and can disturb and block passageways ?.
Any help great, thanks,
Dave