My local mechanic didnt have a clue - he said that it's definately from the top end of the engine but would need to 'strip it down' before he could say what it was
Mazda have diagnosed piston slap on cylinder 3, and perhaps 4 as well but said they'll need to strip if for a complete diagnosis
The dealer recommended I should get a second opinion before I come and see him (of course he would say that), and told me to visit the garage where it had it's MOT (the dealer has been using him for over 20 years)
He threw out the notion of piston slap and said it was tappets - I told him they were shimmed hydraulic tappets and that the mazda tech who inspected my car said that he's never 'adjusted them' in the 8 years he's been at mazda.
The dealer is now suggesting that I have the oil filter/oil changed including a 'special engine flush' for hydraulic tappets. He is happy to pay for it hoping it will save the refund; but I told him that i'd meet him half way. The last service was in June and the car has covered only 7k since - so I doubt that will solve the issue.
If it doesnt - I am going to demand my money back - am I being unreasonable?
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