Annoying knock from camshaft front pulley area

[Alan]

The problem and potential fixes have been discussed at length on this forum if you do a search. The main thing is to understand what has to be done before you start. Personally I’d take the engine out, remove the camshaft and do it properly. Although it could be done with the engine in the car I’d rather not have the attendant risks, also you have a much better chance of correctly diagnosing the problem with an engine in pieces.