Glow Engine Bearings - RCCanada - Canada Radio Controlled Hobby Forum
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Old 09-26-2016, 09:30 PM   #1
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Glow Engine Bearings

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As our flying season winds down at least here in Ontario I have a few tips on oiling your glow engine. This should also apply after each flying day. Our raw fuel is very harmful to exposed metal used in bearings. Even if you hook up your glow driver and use your starter you will never get all the fuel out of the crankcase. Take a look at the pictures I've enclosed, most were rusted from fuel left in the crankcase. If you can't get oil in the motor right away at least block the muffler and carb and even the oil vent on 4-Strokes to stop air from getting in, until you can oil the motor. I use a 50/50 mix of air tool oil and red tranny fluid as my after run lubricant. Its been discussed many times on this site before. But, any oil will be better than no oil. I fly mostly OS Alpha 4-Strokes and for the winter I remove the cam cover to get oil in the motor. But every Alpha I have is always full of oil because of the way it gets circulated through the engine. Alpha's are the best lubricated engines I've ever seen. Its so important to oil glow motors but not many people bother to do it. I use a ink refill dropper for mine. It will even fit inside the oil vent on all 4-Strokes. Don't put it off, oiling is so important to all glow engines. Need any bearings, send me a PM. Cheers Floyd
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Old 09-27-2016, 11:54 AM   #2
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Re: Glow Engine Bearings

All very good points.

I have been using that same 50/50 mix for over 3 decades for both assembly and after run lube. Neither damage the seals or gaskets.

I also agree keeping out the atmosphere is important, (more specifically any moisture) but capping the intake and exhaust serves to keep your transport and storage area clean by minimizing the chance any residue leaks out.

It should also be mentioned that although all are vulnerable, the quality of the bearing metal does make some difference in durability. Pac Rim bearings may be less expensive. You pay for that in less life even with good care and feeding.
I know there's money in aviation........I put it there!
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