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HomeAircraftHelicopterAntiques or Out of Business › Hirobo Bell 47
11-11-2016 11:04 AM  20 months agoPost 1
Gazza

rrApprentice

Australia

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Hi I have the Hirobo bell 47 with the HGE-20 EH engine But EI failed , was given Zenoah EI but cant for the Life of me get the right timing for it to run Nicely , anybody got any ideas ...?

Gazza .....

Melbourne Victoria

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11-11-2016 09:13 PM  20 months agoPost 2
gorhambirds

rrApprentice

Hickory Hills Illinois, usa

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Hay Gazza,

I run Zenoah engines in my 1/5 scale cars. Are you referring to the ignition coil? I'm guessing that the heli engine and car engines are similar, they look to be. If so, I've, changed coils many, many times but there really is no timing adjustment, just an adjustment of the gap between the flywheel and the magneto. The original one from your engine may have positioned the coil unit at a different degree setting around the flywheel than the zenoah coil does. Just a thought.

Steve Z

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11-12-2016 01:27 AM  20 months agoPost 3
Gazza

rrApprentice

Australia

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The Electronic ignition module is what I'm talking about , the engine is the early tanaka 20cc that Hirobo first used in the bell 47..what I did was changed the original failed EI with A Zenoah one and because that engine has a swing arm to advance the ignition worked by the throttle linkage , I fitted a ball link rod to the arm so this wont move as the module has auto advance ....

Gazza...

Melbourne Victoria

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11-15-2016 02:38 AM  20 months agoPost 4
heliayto

rrNovice

solihull, uk

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I have the same engine, completely got ride of the old Hirobo ignition unit and replaced it with a Runtroniks unit, no advancing or retarding. Very easy to start now and is digitally controlled, runs a treat.

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11-15-2016 07:40 AM  20 months agoPost 5
Gazza

rrApprentice

Australia

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Thanks Mate sounds like what I need , where do You get one from ...?

Gazza

Melbourne Victoria

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11-15-2016 01:35 PM  20 months agoPost 6
Pistol Pete

rrProfessor

Seffner, FL

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A quick search netted this find...

http://www.westonuk.co.uk/westonuk2_073.htm

~~Enjoying the hobby one flight at a time~~

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11-15-2016 10:33 PM  20 months agoPost 7
ozghost1952

rrApprentice

Melbourne Australia

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In what way might the Runtroniks unit be different to the Zenoah EI unit?

I have used the Zenoah unit sucessfully on Helis

Jeff

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