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Old 01-30-2009 | 09:47 AM
  #4  
john_kb7nrn
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Joined: Jan 2009
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From: Albany, OR
Default RE: My Ebay Engine, $30 Ryobi 31cc

w8ye,
Not saying it doesn't show any wear. It's been run but a good running engine shouldn't have any scores.

The original gasket is there between the case and jug. Once I get it running I might try removing it to up comgression.

A neat trick I was shown years ago for when you don't have a gasket is, put a light coat of Permatex on one surface then run a silk thread down the center and overlap the end about 1/2". Bolt it all back together using the silk thread as the gasket. This works best on metal to metal surfaces normaly seperated by a paper gasket. The Permatex is there only to hold the thread in place. Silk woun't carbonize like cotton will under heat. I've done this when rebuilding motorcycle engins. It works, no leaks. If done between the case and jug of a weedy engine it would increase compression.

av8tor,
Yes, I thought it was a good deal too.

Done the card stock - gasket trick on the Homy 25cc engine. Just thought it would be nice to have the orginal gasket, they can't be expensive.

Ok on the silicone exhaust seal, I suppose a card stock gasket would burn up eventually.

John