Danger

Any out there for sale?

I'm not even sure how to respond to this.. Excuse my ignorance but i see no way to have diagnosed the issue with confidence without disassembly or further running time to exacerbate the damage so i'm happy with what i've done to date. I actually enjoy working on my cars and becoming familiar with their engines first hand so yes, this may have not been the most efficient way to diagnose the issue however i'm not paying myself by the hour and i now know a hell of a lot more about the engine than i did beforehand. As always, i take any internet advice with a grain of salt however i appreciate any input given from you lot.

Thanks, will inspect

Any idea where i find said valve?

Yeah im just gonna go ahead and fix my head then look into the oil thing

Its been a long time since I did anything with fluid dynamics. What oil would you recommend?

I understand the difference between pressure and flow but for the purposes I was describing they are relative and only the pressure can be easily measured. I may well be misguided but my thoughts are that under the same flow rates, a lower viscosity oil would be more inclined to take the path of least resistance away from an area under a focused load such as the bottom of a front cam journal, thus providing less of a barrier than a thicker oil? Is there a specific method for changing oil in a S50B32? Couldn't have gotten an air lock somewhere? I guess if the pump goes through the filter and fills the oiler cooler system first before getting to the head then that could be a possible reason as to why?

Cam carriers out and cleaned up. Looks like the no1 intake cam journal was starting to score also. Would indicate that the oil pressure wasn't reaching the front of the carrier passages. Whether that could possibly be due to being too thin or just not enough pressure i'm unsure.

Right about what? Its lack of oil whether that be a blockage or what im not sure but i've blown the oil passage clear now anyway. Usually i pull the plugs and run the oil pressure up off the starter for a motor i care about that ive changed oil on but its a bit of a mission on the s50. I'm not convinced it needs line boring to be honest but i'm pricing it all up. Untill i locate suitable replacement parts thats the route i'll be taking.

Decided what I'll do is remove cam tray and see if I can get the journal machined oversize then get the cam metalsprayed and ground to suit.

As above.

Well I'm pretty confident I've located the mystery noise. Noticed before that the no.1 cam journal on the exhaust cam is badly nipped up. Not exactly what i wanted to see..if anyone has a b32 cam tray or exhaust cam please get in touch

Yeah i found it and all back together. Yes ill be needing the bridge and crank locking pin thanks. Nothing obvious with regard to the mystery noise, chain guides look good and everything is extremely clean.

Well, im regretting doing the rattle kit proceedure as it was quite time consuming and now i have the exhaust cam out. The bearings seemed ok anyway.. I struck a big issue with the nut on the end of the intake piston rounding despite using all the correct tools. Had to file it off which has scored the top of the piston a little however this isnt a wear surface. Inspected the vanos oil pump and managed to fire a spring off into some part of my 110m2 workshop so todays job will be attempting to find that.. All in all, i would recommend not doing the rattle kit unless you observe excess play once you've removed the vanos unit.

Thanks. I'll see how i get on.