After finding out that I already had a new Cole Hersee ignition switch I decided to attempt the replacement. The switch is about 3/4 size of the original, but has 5 posts like the original, with one post not being used. So I aligned the wires the best I could, and attached them to the new switch, despite the fact that the original ignition posts were marked with numbers, while the new ignition was marked with letters. The result was predictable. The moment I inserted the key, the pre-warming glow plugs alarm sounded. Then I started the engine, and the alarm kept blaring. Then I pressed the off switch, but engine kept restarting, even when I put the key in the off position. I had to turn the key to on, keep the off button depressed, and have a friend put all fuses and the battery switch to off. only then I was able to let go of the key and reinstall the original ignition switch. ;-)
So, does anyone know if the original ignition switch was also Cole Hersee??
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Piotr Serwik
S28 Mk I (standing rigging from Mk II).
1972, Hull #13
"Deep Blew"
Rock Hall, MD