Well, I thought I'd play safe and get my engine fixed by a highly recommended local family owned 'back street garage' - mainly to avoid the extortionate bill I would have ended up with by going to a Mazda dealer...........
However, the Local Mazda Dealer has still managed to foook things up for me - probably in spite.
You may have read that I had to have my engine decoked, then to get it back and find she was hesitant upon acceleration, and puffed black smoke - mainly when cold.
Well, for obvious reasons when fixing the original valve problem (coked up with carbon) I took the advice of the said garage and we installed official Mazda parts into the engine.
When I got the car back and still had problems, we suspected that the Lambda sensor was at fault and knackering the fuel/air mixture - hence the poor running and smoke screen when cold. So I duly took her back to the garage (after about 100 miles) for further investigation.
Anyway - they did find a diagnostic fault on the Lambda sensor -which incidentaly wasn't there when the car went in first time round, but the garage was concerned at the amount of smoke coming out of the car when cold.
Further investigation revealed that also they used official Mazda parts, the local Mazda dealer had managed to send the wrong bits!!!!!!
When repalcing the seals of the inlet and exhaust valves, it would appear that the Mazda dealer sent 16 inlet seals, when they should have sent 8 inlet and 8 exhaust seals - which is what had been asked for. As they apparently all look the same they all got fitted.
So you start the car up, and the inlet seals - fitted to the exhaust valves - were allowing oil in the cylinder which was duly getting burnt!!!!
All the shit going through the exhaust had coated the Lambda Sensor which explains that one too - although it turns out that a Lambda sensor fault may have been the original cause of the carbon on the valves in the first place - as in running too rich.
So here I am, waiting for the correct parts to be delivered on Tuesday (missed the friday noon cut off for Monday) and hope that I get my car back next Wednesday!!!!!
Bugger blast and damn....................but at least the Mazda dealers error isn't going to cost me a penny to get it refixed.
Moral of the story - pray your car doesn't go wrong, cos the Mazda dealer will alwats manage to sting you in one way shape or form!
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