Doctorr

Mr. rpm-pwr is right on with the coolant/oil seal difference- the coolant seals are the huge 'o' rings that seal the rotor housings from the end plates. A side seal would not let coolant in or out.

I was one of the first people to have a coolant seal failure, 1978 I believe, and Mazda gave me a nice new engine.

Thanks again, Mazda, I owe you one!
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doc

rpm_pwr

That's fine, it's your decision. But have you read these?

That's a shitload of serious knocking even at 500rpm maps points. (18rpm points x 5 load points = 90 seperate occasions)

Don't get me wrong I'm not saying his work is dodgy, but rather, he probably spent an engine finding all the knock points.

Exhaust port location would have SFA to do with apex seal friction. If anything, it should be better with the newer housings.

-pete

Lock & Load

RPM-PWR

YEAHi get your drift , but no one is perfect canzoomer imho seems to be very knowlegeble in most areas of the rx8 but not all.

timbo

Herewith, a SBO: These boards and the internet generally are a great medium for exchange of information and experience. However, there is always the issue of opinion vs fact.

For an issue such as an engine failure or major defect, I would prefer to see a number of individual posts setting out experiences rather than one that goes on to relate others "that have been heard of", and I for one hope we can encourage as many 8 owners as possible to participate and share their experiences, so we ALL gain from the collective experience and experimentation.

Me? Now I have my doubts about the performance-enhancing capabilities of those rotor emblem tyre valve caps

Timbo