OS 32 SXH Engine won't start

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Simon Ashford - 07 Aug 2003 20:54 GMT

Completely new to Heli's so can I have any explanation's in layman's terms
please.

Bought the Heli second hand so engine already run in and haven't had any
problems with it until now, flew it fine recently then re-fuelled and the
ba***rd won't start. Have brought it home and charged the Glo Starter screw
driver like thing over night, tried again the next day and still won't
start?

I've been and bought a new Glo-Plug earlier today but not had chance to fit
it as yet.

Any other idea's, suggestions or things I can try if the Glo-Plug doesn't
fix the problem?

Thanks in advance.

--
Simon Ashford MCP
IT Consultant, Netlink Data Solutions Limited.

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Kalm2KAOS - 07 Aug 2003 22:02 GMT

> Completely new to Heli's so can I have any explanation's in layman's terms
> please.
[quoted text clipped - 12 lines]
>
> Thanks in advance.

First things first,is any fuel getting through to the carb? Take it off the
carb,try to start it, see if fuel piddles out of the pipe.I had a starting
prob some time ago, think fuel had evaporated and left oil in the pipe which
bunged it up.try your glow on a new plug, see if it glows,maybe dirty
contacts on glo-driver...Something to be going on with
HTH

--
Paul

I'd rather be flying :-))

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Beav - 08 Aug 2003 00:29 GMT

> Completely new to Heli's so can I have any explanation's in layman's terms
> please.
[quoted text clipped - 12 lines]
>
> Thanks in advance.

You only need three things to make an engine run (ANY engine).

Fuel
Compression
Something to light the fuel (glo or spark plug)

If you can feel the engine getting hard to turn over at top dead centre,
you've got compression.

If the plug actually GLOWS when you connect the battery, you've got your
"lighter" (Check it actually DOES glow and don't rely on an ammeter. Take
the plug out, connect to your 1.5v supply and check for a bright orange
glow. Don't use any intermediate "remote connectors" when you re-install the
plug. You could simply have blown the plug, so get a new one. You'll need
one sometime anyway, so it's not a waste of money, plugs don't last forever.

If your fuel is reaching the cylinder head, the engine WILL run, providing
the fuel is still "good". If it's old fuel or nitro free fuel, your motor
probably won't like it very much, so make sure the feul IS good and that
it's got a little nitro in it.

Signature

Beav

Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

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John A. Mason - 08 Aug 2003 00:43 GMT

<snip>

> You only need three things to make an engine run (ANY engine).
>
> Fuel
> Compression
> Something to light the fuel (glo or spark plug)

Well... you need oxygen too <smile>
John

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Oliver - 08 Aug 2003 01:40 GMT

I believe oxygen comes under the catagory of fuel : P

> <snip>
> > You only need three things to make an engine run (ANY engine).
[quoted text clipped - 5 lines]
> Well... you need oxygen too <smile>
> John

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John A. Mason - 09 Aug 2003 16:04 GMT

smart a*s!... but I must admit you are correct <smile>
John

> I believe oxygen comes under the catagory of fuel : P
>
[quoted text clipped - 7 lines]
> > Well... you need oxygen too <smile>
> > John

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Peter Seddon - 09 Aug 2003 11:01 GMT

I've had problems before now with too much air due to the carb having worked
loose. Check its tight.

Regards Peter

> Completely new to Heli's so can I have any explanation's in layman's terms
> please.
[quoted text clipped - 16 lines]
> Simon Ashford MCP
> IT Consultant, Netlink Data Solutions Limited.

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Simon Ashford - 12 Aug 2003 20:25 GMT

Thanks very much for all the comments and advice everyone. Started off
quite an interesting side debate as well!

I found the problem in the end, the rubber tubing which connects to the
engine to carry the fuel had a split in it so quite a bit of the fuel was
leaking.

Regards,

--
Simon Ashford MCP
IT Consultant, Netlink Data Solutions Limited.

> Completely new to Heli's so can I have any explanation's in layman's terms
> please.
[quoted text clipped - 16 lines]
> Simon Ashford MCP
> IT Consultant, Netlink Data Solutions Limited.

Reply to this Message

Beav - 13 Aug 2003 00:33 GMT

> Thanks very much for all the comments and advice everyone. Started off
> quite an interesting side debate as well!
>
> I found the problem in the end, the rubber tubing which connects to the
> engine to carry the fuel had a split in it so quite a bit of the fuel was
> leaking.

There you go, right back to basics. You need fuel, compression and a "light
sabre" to fire the fuel. No fuel, no starting:-)

Signature

Beav

Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

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Simon Ashford - 13 Aug 2003 19:40 GMT

I know, something so simple. I had bought a new glow plug as well as it was
the only part I could imagine it would be but obviously not. Incidentally I
bought the Irvine Catalogue whilst at the model shop which has an exploded
diagram of replacement parts for the engine - now I'm scared!

--
Simon Ashford MCP
IT Consultant, Netlink Data Solutions Limited.

> > Thanks very much for all the comments and advice everyone. Started off
> > quite an interesting side debate as well!
[quoted text clipped - 14 lines]
> Beavisland now lives at
> www.beavisoriginal.co.uk

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Model Forum / Radio Controlled / Helicopters / August 2003

OS 32 SXH Engine won't start