knock knock.....

[Elanconvert]

hi all
driving home yesterday started getting a bit of a knock from the engine.......
got home and tried the long screwdriver stethoscope which seemed to point to front of cylinder head...
doesn't sound like timing chain, but I could be [hopefully] wrong.....I suppose it could be any of a number of things ....cam bearing? cam follower? valve spring?...
whn it stops raining I will be removing cam cover to inspect.......any hints on what to look for?
I would be grateful for any pointers!!!
thanks in advance..

fred .

[terryp]

Fred
Had one of these a while back and tried everything. Mine was what seemed to be a mechanical knock but turned out to be a very slight exhaust leak. I found it by a small tube up to my ear and just go round all the joins and manifold gasket, if you find one, it can be quite loud on your ear!

Terry