Today's Message Index:
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1. 03:45 AM - Re: RotaxEngines-List Digest: 1 Msgs - 06/25/09 (MacDonald Doug)
2. 06:27 AM - Re: Re: RotaxEngines-List Digest: 1 Msgs - 06/25/09 (=?ISO-8859-1?Q?J=F3hann_J=F3hannsson?=)
3. 11:19 AM - Re: RotaxEngines-List Digest: 1 Msgs - 06/25/09 (D Wysong)
4. 05:48 PM - Hard starting. (=?ISO-8859-1?Q?J=F3hann_J=F3hannsson?=)
Message 1
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| Subject: | Re: RotaxEngines-List Digest: 1 Msgs - 06/25/09 |
Johann, think of the elctrical system like a plumbing system. You have a water
source (battery +) and a drain (ground and batt -). For an electrical component
to work, both must function correctly. The most common electrical problem
in airplanes is a bad ground so make sure your engine ground wire is at least
the same size as the wire going to your starter. Verify that it has a good connection
at both ends. That should take care an the drain side.
Next, check the start solenoid. It is possible for the contacts to become bad.
This is kind of like a water valve that won't open all the way.
Hope my ideas (and gooofey analogies) help.
Doug MacDonald
CH-701 Scratch Builder
NW Ontario, Canada
>
> Subject: RotaxEngines-List: Rotax 912 ul hard starting
>
>
> Hello fellow listers.
>
> I am having a problem with starting my Rotax 912 UL engine.
> A full
> battery is not turning the starter, but if I remove the
> starter and
> charge it directly from a battery, it turns.
> I removed the spark plugs and started again, and the engine
> is turning
> very slowly and then slowing down. I thought the
> problem was with the
> regulator and after testing it, it showed no charging.
> But that should not affect the starting ???? I replace the
> Ducati
> rectifier/regulator with a Schicke GR 6 regulator.
> The engine has a high compression and everything is turning
> normally
> when turned by hand.
> Do you have any suggestions to this problem?
>
> Thank you in advance.
>
> Johann G.
> Zenith 701
> Iceland.
__________________________________________________________________
Get the name you've always wanted @ymail.com or @rocketmail.com! Go to http://ca.promos.yahoo.com/jacko/
Message 2
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| Subject: | Re: RotaxEngines-List Digest: 1 Msgs - 06/25/09 |
Hello Doug.
Thank you very much for your input. I will definitely recheck all the
ground system. The cables are the same size, so it could be the
connections or the solenoid. I will let you know tonight of the outcome.
Best wishes,
Johann G.
Iceland.
On 26.6.2009, at 10:43, MacDonald Doug wrote:
> >
>
>
> Johann, think of the elctrical system like a plumbing system. You
> have a water source (battery +) and a drain (ground and batt -).
> For an electrical component to work, both must function correctly.
> The most common electrical problem in airplanes is a bad ground so
> make sure your engine ground wire is at least the same size as the
> wire going to your starter. Verify that it has a good connection at
> both ends. That should take care an the drain side.
>
> Next, check the start solenoid. It is possible for the contacts to
> become bad. This is kind of like a water valve that won't open all
> the way.
>
> Hope my ideas (and gooofey analogies) help.
>
> Doug MacDonald
> CH-701 Scratch Builder
> NW Ontario, Canada
>
>
>>
>> Subject: RotaxEngines-List: Rotax 912 ul hard starting
>>
>>
>> Hello fellow listers.
>>
>> I am having a problem with starting my Rotax 912 UL engine.
>> A full
>> battery is not turning the starter, but if I remove the
>> starter and
>> charge it directly from a battery, it turns.
>> I removed the spark plugs and started again, and the engine
>> is turning
>> very slowly and then slowing down. I thought the
>> problem was with the
>> regulator and after testing it, it showed no charging.
>> But that should not affect the starting ???? I replace the
>> Ducati
>> rectifier/regulator with a Schicke GR 6 regulator.
>> The engine has a high compression and everything is turning
>> normally
>> when turned by hand.
>> Do you have any suggestions to this problem?
>>
>> Thank you in advance.
>>
>> Johann G.
>> Zenith 701
>> Iceland.
>
>
>
> __________________________________________________________________
> Get the name you've always wanted @ymail.com or @rocketmail.com! Go
> to http://ca.promos.yahoo.com/jacko/
>
>
Message 3
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| Subject: | Re: RotaxEngines-List Digest: 1 Msgs - 06/25/09 |
>
> I am having a problem with starting my Rotax 912 UL engine.
>
....
> Do you have any suggestions to this problem?
>
Sounds like you need a new battery, Johann. While the voltage says your
battery is the battery is "full", a load test will likely show that it isn't
able to source the current required.
D
Message 4
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Hello list members, Doug and D. Wysong.
I found out the problem with the hard starting. Grounding was good,
battery good but the starter solenoid was bad.
One friend mentioned that this could be caused by a low voltage
starting from when the regulator/rectifier died. When I tried to start
the engine a few times with a low voltage,
the solenoid may have partly connected and created a blockage between
the internal connection.????
At least I found the cause and had to let you all know.
Thank you for your advise Doug and D. Wysong.
Best regards,
Johann G.
Zenith 701
Iceland.
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