Right, Some of you may have read my drifting thread...

I am rebuilding my cosworth engine following a little mishap!

I have refitted a polished and skimmed head, to a fully built, nalanced and uprated bottom end. I am no mechanic but I had the help of a cosworth specialist mechanic from West Sussex help me.

The car starts fine, oil is getting to the head / hydraulic followers etc but it knocks like a b***h.

I am using 15-50 Sikilone fully synth
had the head caps tightened down to ford spec. I did have to have 4 new valves fitted as the mishap bent 4 valves!

I am wondering what might be wrong? My mechanic cant get to me before the weekend and I am racing on Saturday... well, I should be! I am thinking that maybe when the valves were damaged, the followers may also have been damaged?? Is this possible?

I have just bought new followers and new cam barings, waiting for them to be delivered. Could it be anything else? The noise gets louder as the revs increase. I can only explain it as "sounds like an old style diesel" It sounds like it would be " screwed tappets" if it has any!

All help appreciated.