1998cc M111 Engine Tapping

[justinbaker]

Hello all,

I have just purchased a Vito 113. It has a 1998cc M111 Engine that today I started to strip ancillaries off to find the cure to a "Whiring noise", and a constant tapping sound on the top of the engine.

I suspected the tapping to be a worn camshaft, but after taking the rocker box off the cams look like new, bearing in mind this has done 96k they are unworn. If anyone would like pictures feel free to email me.

Anyhow so I need to locate this tapping, and the next area to look is the "tappets" or cam followers isn’t it?

Is there any way to find the culprit in the bank of 16?

Also more alarming is "whirring noise", its not anything external ancillary as I removed the belt and ran it for a few seconds.

This totally bemuses me, I am quite practical and although this noise seems to be coming from the crank area / timing chain, could this be an over tightened chain, it feels with fingers right?

Yesterday I flushed the engine with Wynns, and then some from GTX Magnatiex, after an engine technician advised it might help ...

Still ticking away.

Lastly (sorry to go on) where on the internet is there a manual for this engine, it’s surely quite a common, and from what I can see they are nicely engineered unit.

Would it be beneficial if I say upload a wav or MP3 of the sound?