Sunday, July 12, 2009
Remade ignition coil
I've sorted remaking the ignition coil now. The coil came off the spare X1 stator having shifted the power coils out a little.
The bent over lamination can be straightened with a steel scraper and then pressed flat in the jaws of a vice. The rivets holding the copper 'voltage limiter' plates had to be drilled out releasing the assembly. The black plastic plate cam off with a gentle prise with a steel scraper.
It didn't come easily though, it needed quite a few 'taps' with a hammer and a softwood drift. This did crack it a little (hence the Lambretta/SIL project) but nothing that a little Araldite couldn't fix.
The patent coil machine was put to use and I got 3000 turns on in 40 minutes with a resistance of around 307ohms. As previously, the start and end wires were a little fiddly. I wrapped maksing tape around the coil and then placed some layers of acrylic PCB varnish. Juts to make sure it wouldn't unwound I also ran a bead of Araldite around the former and across the tape joint (not shown on this photo...).
I've sorted remaking the ignition coil now. The coil came off the spare X1 stator having shifted the power coils out a little.
The bent over lamination can be straightened with a steel scraper and then pressed flat in the jaws of a vice. The rivets holding the copper 'voltage limiter' plates had to be drilled out releasing the assembly. The black plastic plate cam off with a gentle prise with a steel scraper.
It didn't come easily though, it needed quite a few 'taps' with a hammer and a softwood drift. This did crack it a little (hence the Lambretta/SIL project) but nothing that a little Araldite couldn't fix.
The patent coil machine was put to use and I got 3000 turns on in 40 minutes with a resistance of around 307ohms. As previously, the start and end wires were a little fiddly. I wrapped maksing tape around the coil and then placed some layers of acrylic PCB varnish. Juts to make sure it wouldn't unwound I also ran a bead of Araldite around the former and across the tape joint (not shown on this photo...).
Comments:
Post a Comment
