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| Detroit single piston marine engine i... |
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sherpa
New member
Username: sherpa
Post Number: 1
Registered: 06-2005
| | Posted on Friday, June 10, 2005 - 04:53 pm: | 
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I am looking for information / schematics for a single cylinder detroit marine engine. This engine I believe had a model T coil on it originally but the previous owner installed a conventional coil to get it running. Any information is appreciated.
Ian |
jb_castagnos
Senior Member
Username: jb_castagnos
Post Number: 243
Registered: 07-2002
| | Posted on Friday, June 10, 2005 - 10:37 pm: |
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A coil and condensor will usually run these engines but it fires when the points open. Buzz coils fire when the points close. This affects timing, often making them difficult to reverse "on the spark". A model t coil has three buttons, two on the side, one on the bottom. The center contact is high voltage, goes to the plug. One of the other terminals will connect to the battery, the remaining terminal will connect to a terminal on the timer. The other terminal on the timer goes to the remaining battery terminal. The timer makes and breaks the circuit allowing it to fire, these systems are not pollarity happy, and can benifit from switching terminals occasionally to reduce buildup on the points of the buzz coil. If you search the archives you should find a diagram for a buzz coil I make using a Bosch style relay, these work well and are simple to make from scrap parts. |
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