Knocking in the sump area revisited

[philip1]

I have checked the exhaust and this does not seem to be banging against the sump,any other ideas.
Also if I cannot find what the problem is are there any reliable/professional mobile mechanics in the Middlesex area who understand TVR S2 and will be able to advise me what the problem maybe before I have to resort to taking it into a garage.

One desperate TVR owner


regards Philip