Thanks for all the advice. Turns out the timing was out on the camshaft...the "Land Rover Specialist" who put the new timing belt in doesn't even have the 2 special tools required. I did it myself and found the marks he had made to line the camshaft up were a tooth out. Running fine now and VERY...

The vaccuum pump can deffinately cause a "tappet" noise. What state is your oil pump in....you might also have low oil pressure. By the way, does anyone know the exact runout measurement on the 300tdi head bolts? I need to check if I can put the old ones back as finding new ones is proving a...

Ok, that all sounds helpful. The cambelt was fitted recently and I found the original crank gear with no "shoulders" was still in there, so the whole kit hadn't been changed as I had been charged for. This brings into question the mechanics professionalism, so could very well be a tooth out...

Thanks for that, but 2 different rockers broke on the same valve.....I don't beleive they both stuck. I can't see any marks on the piston, so that's not the issue. Still puzzled!

I recently bought a '96 300tdi Auto Disco. A couple of weeks back it started running on 3 cyl's and I found the rocker on no. 4 inlet was broken. I replaced the rocker and was on my way. I noticed it had an intermittent tappet noise that didn't go away after resetting the clearances. The same...