here's the latest on this
oil flush does help but the important thing is the valve lifter if yours goes it can be reconditioned in a few ways firstly test the clearences for the cam to see which one is making the noise as its normally one according to the dealership machanic, then you can either clean it out from inside with something like parrifin (doesnt always work) or just replace it for here goes only £15.97p plus vat direct from the dealership which is what they do as they say that the lifter collapses inside and you normally need a new one unless they say your cam is very worn.
hope this helps someone mind you, you do need to take the cam out to do this or keep flushing with that oil and you may get lucky
Last edited by bobbobb; 08-15-2007 at 10:41 AM.
Reason: bad spelling again