[Spridgets] Fusible Link

[Stan Fickes]

[image: ch861126.gif]

On Thu, Apr 17, 2025 at 8:33 AM Rick Fisk via Spridgets <
spridgets at autox.team.net> wrote:

> Paul and all,
>
> I was thinking about this last night while trying to fall asleep and came
> up with a simple plan to determine how big of a fuse or breaker you will
> need.  Remove the brown wire from the starter switch and install an inline
> fuse holder between the end of the wire and it's connection point on the
> starter switch.  All current used to run everything electrical on a Bugeye
> (except for the starter motor) goes through this wire.  Install a big fuse
> of your choice and turn everything on and see if the fuse holds.  Turn the
> key to the "On" position and then turn on the highbeam headlights, turn
> signals, heater fan, wipers, step on the brake pedal, and then blow the
> horn.  If the fuse is big enough it won't blow.  You can experiment with
> bigger and smaller fuses until you find the load.  When you find the fuse
> that blows go 20% bigger for a safety margin and you're good.  :-)
>
> Rick
>
> > On Apr 16, 2025, at 9:23 PM, David Woerpel via Spridgets <
> spridgets at autox.team.net> wrote:
> >
> > As an addendum to my earlier post I found this on "Experience"
> >
> >
> https://www.ahexp.com/forum/the-sprite-forum.6/size-of-fuses-58-bugeye.229621/
> >
> > Dave W
> >
> > '59 :{)
> > '59 MGA 1500
> >
> > "Pay It Forward"
> >
> >
> >
> >
> >> On 4/16/2025 7:19 PM, Bill L. via Spridgets wrote:
> >> Hello Paul,
> >>
> >>
> >> There's something about the ratings of those old British fuses that's
> odd. They are IIRC slow blow so not rated as we would normally think them.
> >>
> >> I know BugEyeGuy sells a dummy regulator )for use with a GENERNATOR
> with a 50A fuse link. I have one. .. On the other hand fuses are to protect
> the wires, not the devices that utilize the power. So what is the size (and
> thus the amperage rating of the wiring? I think that largest other than the
> starter is 14, (15A  capacity in house wiring) but even if it's 12 that's
> still only 20A. .. On the other hand the starter is wired with #4. That's
> 100A house wiring and a typical starter in an MGB (from my quick research)
> is over 250A.
> >>
> >> All that taken into account, I think BugEyeGuy has it correct and the
> 50A fuse link has never cause me any problem.
> >>
> >> (here's where I mention that I put my STEBEL horn on it's own fuse as
> it draws 18A.   125db IIRC.
> >>
> >>
> >>
> >>
> >
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> >
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> >
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> ------------------------
>
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