[SEL] BTH magneto question

[edd payne]

Again Jerry.The condenser in this mag is in the end of the rotor and the
bolt that holds the points in screws into it.Replacement is not real
straight forward as wires need to be soldered and not being able to see the
replacement not shore how it attached to the point screw.
EDD PAYNE
PO BOX 364 GULGONG
New South Wales  AUSTRALIA 2852
0263742387
edsingns at winsoft.net.au
----- Original Message -----
From: "Jerry Evans" <jerrye at databak.co.za>
To: <sel at lists.stationary-engine.com>
Sent: Thursday, April 13, 2006 11:22
Subject: [SEL] BTH magneto question


> Hi The list,
>          I'm having problems with the BTH Type M1 mag fitted to the Ronnie
> N and, being totally ignorant about magneto's, I'm hoping some of you can
> come up with ideas and information.
>
>          When I first got the engine I did get it running with the mag but
> the contact breaker spring was a bit stretched and would touch the body of
> the mag and short out. I temporarily sorted this out with a strip of
> insulating plastic but this wore out very quickly. A friend (who knows
> these things and is not a fool) took the mag to sorted this out by
> shortening the spring a little. He also cleaned up and serviced the mag
and
> skimmed the brass brush track. When he was finished the mag was producing
a
> nice strong spark.
>
>          Now that the engine is reassembled I'm getting erratic results
> again and the spark is pretty weak (the mag is well earthed to the engine
> via the mounting bolts). Justin (my aforementioned friend) suspects that
> the condenser in the armature is causing this problem but has never
> stripped one of these.
>          I found a company in Britain who offers a "modern replacement"
> condenser and have written to them asking for details regarding how to fit
> the new condenser (does it need special equipment and suchlike) but have
> not received an answer from them yet hence my letter to the list.
>
>          Does anyone have any info on how to do this - can a skilled
person
> do this with normal tools or is any special equipment needed ?
>          It would also help if anyone knows what the values of this
> condenser are and could tell me what to look and ask for and I could try
to
> source one locally. I'm not against ordering one from Britain but it would
> be easier and quicker if I could get it locally.
>
>          I do know that I could send the mag to England, Aus or the States
> for repairs but unfortunately my budget does not allow for this. We have
no
> local companies able to fix these old mags.
>
>          Of course any other ideas or suggestions regarding the working of
> the magneto would also be appreciated.
>
>          I have temporarily fitted a Wico mag to the engine and he is
> "puttering away" beautifully but I would like to repair and replace the
> original BTH - especially seeing as that as I went to so much trouble
> polishing it up and removing the chrome to see polished brass :-)
>
> Thanks in advance.
>
> Keep the revs up (or down)
> Jerry Evans
> Near Johannesburg in Sunny South Africa.
> Tel. (016) 365-5787 or 083 283 7191
> Visit our website for old engines in South Africa.
> www.oldengine.org/members/evans
>
> ---
> [This E-mail scanned for viruses by Declude Virus]
>
>
> _______________________________________________
> SEL mailing list
> SEL at lists.stationary-engine.com
> http://www.stationary-engine.com/mailman/listinfo/sel