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sjhdcl(at)kingston.net Guest
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Posted: Thu Jun 22, 2006 3:37 am Post subject: Engine grounds |
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If I get continuity between my ground block and all unpainted parts of the
engine, do I still need to run 2 ground wires specifically for the engine?
Steve
RV7A
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dennis.glaeser(at)eds.com Guest
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Posted: Thu Jun 22, 2006 4:40 am Post subject: Engine grounds |
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Steve,
Just getting continuity doesn't mean it will handle the amperage
required - especially for starting. My son (also building a 7A) tried
cranking his engine before installing his grounds, and it barely turned
over. Once he installed the grounds, it spun like a top. Also, without
dedicated grounding, your engine instrumentation could potentially be
intermittent or inaccurate, and difficult to diagnose.
Dennis Glaeser
RV7A Fuselage
If I get continuity between my ground block and all unpainted parts of
the
engine, do I still need to run 2 ground wires specifically for the
engine?
Steve
RV7A
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frank.hinde(at)hp.com Guest
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Hopperdhh(at)aol.com Guest
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Posted: Thu Jun 22, 2006 7:25 am Post subject: Engine grounds |
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Steve,
I couldn't agree more. Just imagine putting the starter current through
your throttle and mixture cables! That voltage had to be dropped somewhere.
The second ground is to prevent this just in case the first one opens up for
any reason.
Dan Hopper
RV-7A
In a message dated 6/22/2006 8:42:57 A.M. Eastern Daylight Time,
dennis.glaeser(at)eds.com writes:
<dennis.glaeser(at)eds.com>
Steve,
Just getting continuity doesn't mean it will handle the amperage
required - especially for starting. My son (also building a 7A) tried
cranking his engine before installing his grounds, and it barely turned
over. Once he installed the grounds, it spun like a top. Also, without
dedicated grounding, your engine instrumentation could potentially be
intermittent or inaccurate, and difficult to diagnose.
Dennis Glaeser
RV7A Fuselage
If I get continuity between my ground block and all unpainted parts of
the
engine, do I still need to run 2 ground wires specifically for the
engine?
Steve
RV7A
| - The Matronics AeroElectric-List Email Forum - | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
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