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Rotary Tech - General Rotary Engine related tech section.. Tech section for general Rotary Engine... This includes, building 12As, 13Bs, 20Bs, Renesis, etc...

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Old 08-29-2015, 07:17 AM   #1
88turboii
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why do you knotch only one side of the corner seal.. why not both, or are the side seals not long enough?

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Originally Posted by Slides View Post
I genuinely though Ted forgot the italics in his comment here until I saw it was actually closed. Not sure why you wouldn't want documentation of long term runner that someone has tested in one place?
i agree, lets keep it in one thread
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Old 08-29-2015, 08:04 AM   #2
Barry Bordes
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Originally Posted by 88turboii View Post
why do you knotch only one side of the corner seal.. why not both, or are the side seals not long enough?
The problem is tolerance shift. Mazda manufacturing tolerances are very good but are still off a small amount. Each side seal and corner seal is slightly different and thus must be fitted carefully to eliminate any binding.

My thought is that using one cut is half the fitting and half the possibility of binding an apex seal. I have the side seal push on the uncut flat side and the normally gapped open side is in the labyrinth cut.

An additional feature is that on final assembly build.... the apex seal to corner seal alignment is perfect... just slide them in.

That said... if you want to do both, do both.

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