Hi all.

I have been reading a lot of threads w/regards to noisy tappets. Alas, I haven't really found a good answer as to why my engine sounds like someone has put gravel in it, so I'll give it a try here and see what you might think. The engine in question is a Brabus m104.98x 3.6.

Story so far: Decided to replace valve guidances, engine was smoking badly under acc. and not running very well in general. Took the head off, sent it to a local firm for new valve guides and the usual planing and so on. Put the whole thing back together and started it: klack-klack-rattle-bang, crash...let the engine run warm, no improvement.

Ok, so I thought, fine, I'll need new tappets, bought them (expensive little buggers) off with the cams again, changed them, managed to snap the exhaust cam off into 3 pieces (actually, it wasn't me who did that, but anyway) when rebuilding, again...looking for info on what cam is used in a Brabus engine, thankfully Brabus told me it was a standard exhaust cam, only inlet cam is modified, so, bnought one from a junkyard and assembled the whole thing again.

Klack-klack-rattle-bang, crash, well, you get the idea...

Oil pressure is good, changed oil 2 times lately, not using any fancy synthetic stuff, but it should be ok once the engine warms up, right? Well, no. Noise is still there after warm engine. It is a BAD noise, not subtle at all.

It is not the deep clacking noise from a bad crankshaft either, one thing I WILL check tomorrow is if the noise might come from the timing chain, although I don't think so.

A question: where and how is the oil supposed to enter into the tappets? I know they have a little hole in them on the side, but how does the oil gets there in the first place? Any hoses I might need to check?

Any/all ideas will be accepted with gratitude.

/Pontus