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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › OS .32 SX-H rebuild
06-03-2020 05:44 PM  35 days ago
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chris6414

rrApprentice

Holly Ridge, NC USA

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OS .32 SX-H rebuild
Dusted off my old Hawk Sport last week and noticed she seemed a little week(more than normal). Removed the motor and swapped it with the spare I had and all was well.

Tore old motor down and low and behold the Teflon piston pin cap was totally gone and the pin was sliding and scoring the sleeve. I bought this hello used 10 years ago and flew it pretty regularly so I can't complain. I planed to rebuild but can't find that piston and sleeve anywhere. I did however find the ringed version parts at rcjapan and they are on the way. Crank and case are good, everything else is pretty worn out. I picked up all the new parts for under $100. Only place I could find them. eBay had the Pis
ton and ring for $50 and Amazon had the ringed sleeve but they wanted $75 just for the sleeve. RC Japan even had a new in the box .32 ring and a pull start.

I searched for a used os.37, but no one seems to be selling them.

Century Hawk Sport, OS .32, Futaba 7C, GY-601 9251
Predator Gasser SE G-23, Fut 3010 servos, JR gyro/servo
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06-03-2020 06:31 PM  35 days ago
no1gsxrman

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Baltimore, Md

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The os .37 is discontinued.Put the woman and children to bed it's time to go fly!
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06-03-2020 06:48 PM  35 days ago
jbjones

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Columbus, Mississippi

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chris6414 I searched for a used os.37, but no one seems to be selling them.
RCJapan should have any parts, and can get you an engine. They're pretty easy to deal with.

Edit: I just checked RCJ ; OS .37: 21,150 YEN == $194 USD.
J. B. Jones
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06-04-2020 03:56 AM  35 days ago
wjvail

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Meridian, Mississippi

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As Joey pointed out RC Japan will send you an OS .37.. Contrary to popular belief, they were never discontinued. I would describe them as the greatest .30 class engine ever. Simply a joy to run and fly.

If you are insistent on retro, the OS .32 can still be bought. These little motors ran like a sewing machine. Not as much power as the .37 but stupid easy to tune. It is really cool (and a little odd) that you can still buy the .32. https://www.rcjapan.net/index.php?m...0hreilg53pdfj3:)
"Well, nothing bad can happen now."
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