Combustion blower no seal?

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SKOAL MAN

Burning Hunk
Sep 10, 2014
231
Kingston, Ontario
Should the combustion motor not have a seal? There is a gasket for the housing and a gasket for the plate that the motor is bolted to the housing. But where the shift goes through that no seal?
 

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No seal is needed there. Due to it's location it's on the suction portion of the impeller, air can only go in that opening and not out.
 
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