[SEL] Accurate (A&E) Magneto Testing

[John Hammink]

Hi Larry,
I have a few A&E mags with new windings and some other
brands too. The magneto man here (there're only a few good ones)
rewinds them in 90% of all cases. There're no parts here for US
mags so you have to repair them. He told me when the windings get
warm and there is some damage in the insulation of the wire you got
troubles or even the wire could be broken somewhere inside. A new
winding cost $150 for the average mag. I have a Bosch mag on my
HSCS engine that was hardly to start because I couldn't make enough
revolutions by hand on the flywheels, so he rewound the armature with
thinner and more windings (special new kind of wire) and I got more
Volts by less revolutions and the engine starts in once now.
I'm bad in electrics so can't tell you how to test it, he put it in his test
machine let it run 300 rpm and at both sides he placed a hair dryer to
make warmed and read the Volt and Amp meters that's what I have
seen. When the A&E mag was done it gave 5-6 Volts.

Take care,
John Hammink
Anna Paulowna, Netherlands.
jg.hammink at quicknet.nl
www.oldengine.org/members/hammink/web




> I am working on a Accurate aka: A&E magneto off of a Mogul 1hp.  The engine
> will start without any problems on a coil and battery and when you switch it
> over to the mag it will not run much at all.  The ignitor has all new mica
> washers and adjusted and works fine.  I have had the magnets charged with a
> large magneto charger and they have lots of pull.  I have the armature out
> of the mag and all the collector brushes and the parts that they ride on are
> clean and in excellent shape.  From what I have been told that it looks like
> I might have bad coil windings...   My question is how do you check and
> armature and windings?? And if it is the windings who can do this kind of
> winding repair??  I have also been told that they are harder to rewind than
> other mags but I don't know this to be true.
> 
> Thanks for any help
> 
> Larry Holderman
> Warsaw, Indiana
> USA
> 
> 
> _______________________________________________
> SEL mailing list
> SEL at lists.stationary-engine.com
> http://www.stationary-engine.com/mailman/listinfo/sel
>