Whatsup with the clutch seals?

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moronic_kaos

New Member
Apr 6, 2010
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Connecticut
Behind the magneto & small engine gear, there are the engine seals. If one blows, a vacuum leak occurs.

But there are also seals behind the chain gear and the clutch assembly. Would a loose one also cause a vacuum leak, or is it isolated somehow?
 

corgi1

New Member
Aug 13, 2009
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KCMO
If the split case gasket is good ,the clutch shaft is isolated ,and also it uses heavy grease not fuel mix for lube.,,The main engine case matches the rotating crankshaft very closly (no extra space like a 4 cycle) so that the fuel/air mix will be moved by the suction of the piston moving up and down,,,
 

corgi1

New Member
Aug 13, 2009
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KCMO
They are isolated,You may be able to just press the crank shaft seal back in if it is not damaged