| [GMCnet] Re: Fall GMCMI Rally in Chippewa falls [message #367040 is a reply to message #367037] |
Mon, 04 October 2021 15:17   |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma:
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Senior Member |
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The Fusible Link IS outside of the wiring harness and I've never heard of
one doing damage. On the other hand, there is within the main cockpit
wiring harness a Nichrome wire used for excitation of the alternator's
field, which can, and HAS caused severe damage to the other wiring in that
harness. Gene Fisher's Alternator Protection Cable (APC) SHOULD be used to
prevent that possibility; it works by preventing high voltage from a
malfunctioning alternator from passing back through that 10.0 Ohm cable.
Ken H.
On Mon, Oct 4, 2021 at 10:34 AM D C _Mac_ Macdonald
wrote:
> From what I have read here over the past years,
> it would seem to me that a good idea would be to
> install a new fusible link OUTSIDE of the wiring
> harness. This would avoid having a severely melted
> link from destroying an entire harness as has been
> reported.
>
> D C "Mac" Macdonald
> Amateur Radio K2GKK
> Since 30 November '53
> USAF and FAA, Retired
> Member GMCMI & Classics
> Oklahoma City, OK
> "The Money Pit"
> TZE166V101966
> '76 ex-Palm Beach
> k2gkk + hotmail dot com
>
> ________________________________
> From: John R.Lebetski
> Sent: Monday, October 4, 2021 09:05
> To: gmclist@list.gmcnet.org
> Subject: [GMCnet] Re: Fall GMCMI Rally in Chippewa falls
>
> I was just about to comment on the fusible link topic, but Ken B covered
> it very well.
> I don’t have the schematic in front of me but from memory is that add on
> breaker were to open, charge Voltage would overshoot high, That could cause
> secondary damage.
> There was pretty much a “reason why” behind everything engineers did.
> Only understanding part of the picture and not the whole scope leads to
> problems when people try to improve on designs.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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