From: "Andrew Martin andrew@martinag.com.au" <flyrotary@lancaironline.net>
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Date: Thu, 2 Aug 2018 23:44:23 +0800
Message-ID: <CAJxaVD1DnBiuV2RBDoT2Qu_Bp8KMmSoj3KG5j3p_E7mGRm7PCQ@mail.gmail.com>
Subject: Re: [FlyRotary] Re: Alternator Damaged - Internal Short
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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My fuse is 100amp mounted close to the B post on an 80 amp alternator

Andrew <andrew@martinag.com.au>


On Thu, Aug 2, 2018 at 11:39 PM, Jeff Whaley jwhaley@datacast.com <
flyrotary@lancaironline.net> wrote:

> Bobby, no I did not fuse the B lead.  What amperage would it be if
> installed?
> Jeff
>
> Jeff,
>
> Do you have a fuse in the B lead?
>
> Bobby
>
> -----Original Message-----
> From: Jeff Whaley
> Sent: August-02-18 10:41 AM
> To: Rotary motors in aircraft
> Subject: Alternator Damaged - Internal Short
>
> Last Thursday I decided to try my cooling on a hot day 32C (90F); orbiting
> the airport, the cooling wasn't too bad but while waiting for the temps to
> stabilize I smelled smoke so landed immediately.  Saw a bit of smoke
> exiting the oil cooler plenum so thought I was baking some fiberglass.
> On the weekend I did a more thorough inspection and found the battery
> mains cable burned where attached to my alternator cut-out relay and the
> relay fried to the point that the input terminal was loose.  The
> connections stayed in place but open-circuited the relay - so the engine
> never skipped a beat and I was unaware there was an electrical problem at
> the time. Only reporting this now as it took me a while to get the
> alternator tested.
> Jeff
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:   http://mail.lancaironline.net:
> 81/lists/flyrotary/List.html
>

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<div dir=3D"ltr">My fuse is 100amp mounted close to the B post on an 80 amp=
 alternator<br><div class=3D"gmail_extra"><br clear=3D"all"><div><div class=
=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><d=
iv>Andrew<a href=3D"mailto:andrew@martinag.com.au" target=3D"_blank"></a><b=
r><br><br><br></div></div></div></div>
<br><div class=3D"gmail_quote">On Thu, Aug 2, 2018 at 11:39 PM, Jeff Whaley=
 <a href=3D"mailto:jwhaley@datacast.com">jwhaley@datacast.com</a> <span dir=
=3D"ltr">&lt;<a href=3D"mailto:flyrotary@lancaironline.net" target=3D"_blan=
k">flyrotary@lancaironline.net</a>&gt;</span> wrote:<br><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex">Bobby, no I did not fuse the B lead.=C2=A0 What amperage woul=
d it be if installed?<br>
<span class=3D"HOEnZb"><font color=3D"#888888">Jeff<br>
</font></span><span class=3D"im HOEnZb"><br>
Jeff,<br>
<br>
Do you have a fuse in the B lead?<br>
<br>
Bobby<br>
<br>
-----Original Message-----<br>
</span><span class=3D"im HOEnZb">From: Jeff Whaley <br>
Sent: August-02-18 10:41 AM<br>
To: Rotary motors in aircraft<br>
</span><div class=3D"HOEnZb"><div class=3D"h5">Subject: Alternator Damaged =
- Internal Short<br>
<br>
Last Thursday I decided to try my cooling on a hot day 32C (90F); orbiting =
the airport, the cooling wasn&#39;t too bad but while waiting for the temps=
 to stabilize I smelled smoke so landed immediately.=C2=A0 Saw a bit of smo=
ke exiting the oil cooler plenum so thought I was baking some fiberglass.<b=
r>
On the weekend I did a more thorough inspection and found the battery mains=
 cable burned where attached to my alternator cut-out relay and the relay f=
ried to the point that the input terminal was loose.=C2=A0 The connections =
stayed in place but open-circuited the relay - so the engine never skipped =
a beat and I was unaware there was an electrical problem at the time. Only =
reporting this now as it took me a while to get the alternator tested.<br>
Jeff<br>
<br>
--<br>
Homepage:=C2=A0 <a href=3D"http://www.flyrotary.com/" rel=3D"noreferrer" ta=
rget=3D"_blank">http://www.flyrotary.com/</a><br>
Archive and UnSub:=C2=A0 =C2=A0<a href=3D"http://mail.lancaironline.net:81/=
lists/flyrotary/List.html" rel=3D"noreferrer" target=3D"_blank">http://mail=
.lancaironline.net:<wbr>81/lists/flyrotary/List.html</a><br>
</div></div></blockquote></div><br></div></div>

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