Zero Clearance Side Seals

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Zero Clearance Side Seals

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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03-28-2008, 05:45 AM

Barry Bordes

Rotary Fanatic

Join Date: Feb 2008

Location: Slidell, LA

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Posts: 191

Rep Power: 17

Zero Clearance Side Seals

I like to set up my side seals as tight a practical. There are different thoughts on this minimum spec.
I have seen recommendations from .002” -.004” for turbo applications.

On my last engine build-up I mistakenly switched two side seals causing a
.002” clearance. This resulted in scrapping the RE front plate because of a
.004” wear groove on it in the area of combustion (where heat/expansion is greatest).

I decided to try .000”! Found this in an early Mazda paper.

What do you think?
Barry

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