So, the car made a rattle sound, they inspected it, without coming to a legitimate conclusion of what the failure is, their initial solution is to replace the whole engine? To me that doesnt even sound remotely close to logical. I dont think they have done a proper diagnostic of what could be the issue, let alone the cause.

Also, I had a very close friend denied warranty work on his Mazda due to not being able to provide oil change documentation. Thats usually their initial excuse.

Here is some information on the Magnuson-Moss warranty act, basically in order for them to deny warranty work, they have to prove without doubt that the item in question was failed as a direct result of something you did, or did not do.

https://en.wikipedia.org/wiki/Magnus...s_Warranty_Act

 

 

Once you determine the noise is internal to the engine, further discussion becomes academic. You do not want a dealership tech opening the engine to replace parts - you want them installing a new Mazda longblock.

 

Mazda had the dealer pull the valve cover and photograph the cams. Dealer said cams look normal, no signs of starvation or abnormal wear. Hopefully this means I get covered. From now on, oil change log book along with small oil sample from each change.

 

yeah, see.

The problem I have with you needing to share records if that if you didnt do it exactly to their recommended service intervals, they could easily deny your claim blaming you. And really, how will they even know how many miles exactly you went between changes, even if they have dates?

Tell Mazda to stop trying to make a Rotary work, fix your car, and shut the **** up.

 

So mazda is having the dealership put new HLAs in the head.. A little freaked out by the idea of a dealership reassembling the valve train. At least the tech I talked to seemed smart enough and not like a burn out.

 

Valvetrain/HLAs isn't much worse than a timing belt/chain. When you start talking about bearing clearances and good assembly practice, that's when I get nervous. I wouldn't bat an eye at a dealer tech swapping HLAs.

 

Pretty much all they could screw up would be putting the cam caps on incorrectly. Which would be easy to prove if your engine blew and they were on incorrectly.