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08-10-2012 02:59 AM  6 years agoPost 1
Felino

rrApprentice

Mexico city

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I have tried two diferent Loctite bearing retaining compound; 609 and 660 on a Zenoah G26. When taking the crankcase apart I noticed that tapping the crankshaft, and removing the bearings, was very easy. Almost like using no compound. Factory fit is very loose to begin with. The compounds I have tried are no match for the high speed, gasoline/oil, vibration and high temp conditions. If using oil seals it is no big deal. I prefer to use sealed bearing and no oil seals so as to have the crankshaft drag free. The problem is that the bearing/crank loose fit allows some oil/pressure to get its way out of the engine.
Something really tough is required.

Any sugestion??
Epoxy maybe??

I don`t care if it becomes hard to remove... That`s what I want...

Happy Autos!!

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08-10-2012 03:27 AM  6 years agoPost 2
fastflyer20

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N. Tonawanda, NY

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I am not sure why, but I have seen the retaining compounds not cure sometimes. I now often use red lock tite with better success. Clean both surfaces with solvent and let dry. Also consider using a primer. I do think this is better than a different adhesive such as epoxy, they are thick and do not fill the small gaps well.

http://www.mcmaster.com/#loctite-7649/=is50nu

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08-10-2012 03:31 PM  6 years agoPost 3
jgunpilot

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Pollock, LA

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It's all ball barings these days, boys.

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