I have a w115 220 which has done about 60,000 kms... I brought it with a siezed engine which had recently had a timing chain replaced, however I fitted a new battery and it started first time... there was lots of screaching from the top end, so I poured some oil over the camshaft, restarted and the engine now runs sweet as a nut!...

unfortunately there is no oil circulation to the top end of the engine (camshaft) and I am running out of ideas to fix... so far I have checked the oil pump, oil-pump drive, hoses to and from filter/oil cooler, oil cooler, filter head, replaced oil filter, replaced oil filter head gasket, checked oil delivery tube (over camshaft), etc., etc., and have come up with nothing... ...oil is flowing around the engine, but its not getting to the top-end which says to me either poor oil pressure or a blockage; unfortunately the oil pressure guage is not working so I cant check the pressure at the moment

I am about to start stripping the top end of the engine, as I am wondering if there is a blockage in or around the cam bearing housing where the oil feeds upto the oil delivery tube over the cam-shaft...

If anyone has any ideas, can point me in the direction of someone who can help, or some techincal documents/workshop manuals (I am reluctant to spend $150 on MB workshop manuals) I would be grateful

thanks in advance
b

My money is on a blockage, that is if you're sure the bottom end is getting oil. I don't suppose when you had the head off that you checked to see if the passages were clear from the bottom of the head up to the cam? Is there any chance that you put gasket sealer on the oil passsage when you changed the head gasket?