[SEL] Magneto Lucas Sr1

[Andy]

Hi Brian, Sounds like the Maggy is stuffed alright, more than likely the
coil. I have manuals for the SR1, if you want I can e-mail them to you, let
me know? The best person to talk to about these type of Magneto's is Alan
Johnson "The Maggyman"
http://home.rbm.com.au/maggyman/

Andy Nicholson
Exmouth W.A.
Oz.
rustyiron at bigpond.com

----- Original Message ----- 
From: "Brian Taylor" <brianne at ultratune.com.au>
To: <sel at lists.stationary-engine.com>
Sent: Tuesday, January 11, 2005 12:36 PM
Subject: [SEL] Magneto Lucas Sr1


Hi Guys
This query is related to the railway people mover I mentioned last week.
The Wisconsin engine is a AENLD, not as I first thought ABNLD.
Good news, engine is not seized.
Bad news, pulley drive assembly probably incorporating some kind of
centrifugal clutch is seized.

I am a bit perplexed about the magneto (Lucas SR1) on the Wisconsin engine
we are restoring.
It would appear that the SR1 is a self contained high tension magneto, not
requiring external power.
The high tension wire from the mag was connected to the spark plug.
The black low tension wire from within the mag was tucked away down one side
internally and not connected at all.(Did this used to be connected to
points?)
The low tension wire connected to the points appears to have been extended
and was connected to one side of an automotive type coil. There was no wire
to the other side of the coil and neither was there an HT lead from coil
tower.
My suspicion is that the mag low tension side was defective and that the low
tension power to the points was supplied via the ign coil. Other wires may
have been removed at some stage.
Does anyone have a description of the Lucas SR1 mag operating principles at
all?
Any help appreciated
Brian Taylor
Hervey Bay Historical Museum
13 Zephyr St..Scarness
Web Site: http://herveybaymuseum.museum.com/welcome.html
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