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HelicopterScale Model RC Helicopters › overheating engine in fuse
04-30-2004 06:09 PM  13 years agoPost 1
GerryRap

rrApprentice

Chino Hills, CA

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How do you guys deal with this. I have a shuttle plus w/ TT39 and Century Airwolf fuse. As pod and boom, the thing flies well. In the fuse, the engine overheats pretty quickly. I'm running the engine as rich as I could and I am running the stock fan. Theres a hole at the bottom directly under the engine for air circulation. I'm thinking the hole should suffice. I don't want to have to cut a bigger hole and still have the same problem. Any suggestions would be greatly appreciated.

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04-30-2004 07:21 PM  13 years agoPost 2
55crownvic

rrVeteran

Colorado Springs

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Had that same problem with my Twinstar/tt39. Try a K&B 4520 glow plug. That seemed to help mine. It allows for a much richer low speed needle. Mine now runs in the 190 range. Very happy with that.

Dave

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05-01-2004 01:40 AM  13 years agoPost 3
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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overheating

i have an os 32 in my wolf and here are a few tips. if you do not have the top cowl with the vents cut out(they should come cut out) cut them out. they look better with the screening and they help with cooling. also the hole on the bottom, it should be lengthwise, long enough to expose the cylinder head to the backplate. the simulated jet intakes are already cut out and should stay that way to aid cooling. as for fuel, i get away burning a synthetic with 15% nitro even on the hottest days. a high headspeed(not too high of course, if i knew what speed i was running on mine i'd tell ya) helps with optimum power and cooling as well. i use an o.s #8, A3, A5 and enya 3 plugs in my birds and get no probs at all. also, the nice thin glass blades seem to help achieve the high head speeds that those little engines seem to be addicted to. you can help with the overheating also by bumping up the nitro content if you are running 15% by going to 30% OR, you could just add more of the oil that you are using. i have tried all or at least one of these methods to get a cooler run. i usually go up in nitro as a last resort because of the expense.

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05-02-2004 04:40 AM  13 years agoPost 4
Sealerman

rrVeteran

Long Island, New York.

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I solved an over heating problem by extending the cooling schroud out the bottem of the fuselage using a home made duct made of fiberglass.
Sealerman

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HelicopterScale Model RC Helicopters › overheating engine in fuse
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