Finished Farmboy Engine

[Tom Jamboretz]

I have just finished making a model Farmboy engine from Jerry Howell's plans. I have it running on propane and the ignition uses a micro switch from a DVD instead of points or Hall effect sensor. It is on battery and automotive coil. It is the type of coil from a car that uses one coil for each cylinder. It runs very well. The skid is made from red oak.

 

[Brian Rupnow]

Very, very nice!!!---Brian

 

[cwelkie]

Nice, tidy build Tom - well done!
Charlie

 

[Cogsy]

Nice work. Looks fantastic.

I had thought of using a microswitch for ignition, I even ordered some, but I wasn't sure how many cycles I'd get out of one before it wore out.

 

[Tom Jamboretz]

THANKS for the nice comments. I'll keep an eye on the micro switch and post any failure. Does anyone think I need a capacitor when using this switch? TJ

 

[Herbiev]

I believe a capacitor will lengthen the life of the contacts by preventing arcing. My electronics theory is pretty rusty so I may stand corrected