How to change model airplane engine bearings (part 2 of 2)

Part two of a video that explains how to replace worn bearings in a model airplane engine.

It is one of the informational series of videos coming from RCModelReviews.com

If you'd like an advertisement included in this video, please contact me.

If you found this video to be useful, please rate it.

Category:

Howto & Style

Tags:

• rc
• model
• airplane
• radio
• control
• engine
• bearings
• thunder
• tiger
• OS
• 2-stroke
• maintenance

[gmanalready]

Very good video but as a professional engine builder, one thing I would NEVER do is put a scratch in a connecting rod especially across the beam as this will make a stress riser and potentially cause the rod to fail, this simply may not be an issue on rc engines but it's still not generally a good idea.

[xjet]

@gmanalready yes, it's not an issue on these engines, the conrods are massively under-stressed. In 40 years, I've never had a failure as a result of scribing a light cross onto one.

[ae85gt]

Hello mate, great clip and easy to follow. I have a question about castor oils. I noticed a post on the type of oil this motor was run on was a hi-tech ester-based synthetic. Here in NZ the popular brands of synthetic castor are the two brands you say use the low-tech PAG oil (Morgans & Klotz). What are some brands that use the hi-tech oil and what are the advantages over low-tech oils? Cheers :-)

[xjet]

@ae85gt Aerosave/Aerosynth (by fuchs) and Motul Micro are two ester-based lubes designed for glow fuel. The benefits are much better stability at high temps (they don't vaporize like PAGs), a stronger film-strength, better viscosity index (don't thin out with heat so much) and, in the case of the Fuchs oils) a fantastic anti-corrosion package that effectively eliminates the need for ARO and protects against rust when the engine's are not being used.

[xToXiicxT3RRoRx]

what oil is that

[xjet]

@xToXiicxT3RRoRx You can use any oil -- I prefer to use either Mobil 1 synthetic or castor oil. Doesn't make a lot of difference -- it's simply there to provide lubrication until the oil from the fuel can reach the bearings, cylinder etc.

[scruttart]

Excellent clip very interesting & straightforward you are a natural teacher.

[bearhooverpup]

awesome video, thanks!

[Thegamer89ak47]

Were did u get the motor

[3801Catcher]

It looks like you've used a skateboard bearing, yes?

[yamahonkawazuki]

@xjet agreed. although i usually used a spot from a grease pen or a marker. no ill effects from it either

[Damianbmw123]

very, very nice and professional guide.

[TheGreatScat]

I have align 50 engine on my trex 600 helicopter, and I'm planning to replace rear and front bearing. Do I have to use a gasket on backplate and top head? It seems that your engine have no gasket. Thanks and nice vid!

[Mr7165]

7,5 ccm ?????