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Old 03-27-2013 | 09:12 AM
  #17  
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Sport_Pilot
 
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From: Acworth, GA
Default RE: Evolution 40 trainer engine


ORIGINAL: dennis

ORIGINAL: gliderguy100

Appreciate the tips on soaking and heat. I've soaked it in wd40, then penetrating oil. It loosened everything up but no luck getting the connecting rod released. Last night I tried the heat trick and still no luck.The bearings still bump and grind. Either they're simply corroded or there's other grime in there that won't disolve away. On other engines that I've disassembled the connecting rod simply lifts off the crank pin. But on this engine the connecting rod simply won't lift off.It's stuck tight like it's crimped on or something. And on the bottom of the connecting rod there are 2 little dimples that look like it might have been crimped into a groove on the crank pin. A friend suggested to tryremoving the cylinder sleeve first but I've no idea how to do that either.

Dennis, What the heck is a ''Kiner''? I've never heard that term before.
Need a spell check. It is supposed to be liner, its corrected now. If you have the backplate and head off the engine and wish to remove the liner put a prop on the engine and place a popsickle stick inn the exhaust and take the prop up to compression slowly. It will put pressure on the top of the exhaust port and usually will lift the liner enough to give you some wiggle room to remove it. The stick is softer then the metal so it will not damage the liner. After it breaks loose you can use the end f the stick to push on the bottom of the liner to remove the liner. Gentle heating may be necessary to accomplish it but it really is not a difficult task.
Dennis

dennis
This could ruin the connecting rod if the varnish has not been softened with fuel, methanol, or heat. Should not be necessary to remove the piston anyway, you only need to disolve the congeled oil from the bearings as it could cause the balls to slide in the race and ruin the bearing.