I converted old man's 1953 SW6 over to 12V's this past fall, tractor still plows snow every winter for the past 60yrs. I was so tired of leaking 6v battries, generator not charging, etc. Put on a hitachi 35 amp alternator, rewired the whole tractor, put on 3 led work lights, biggest 12V battery that would fit in stock battery box. Put on whole system from Pertronix, ignitor, coil, wires. Also had local electrial shop go thru the starter, just cause. This engine has never started this well ever! Yes, its had new points over the yrs. Im assuming you have the right kit? Should be part number #1442, SM & SW6 should have the same IH distributor, lays horizontally, same engine. Red wire goes pos + to coil, black wire goes - of coil. Have coil part number 40611? Its a 12V coil, it takes 12V's, no resistor is needed. Could be air gap is too large, between the magnet sleeve & the ignitor. Next I would run couple wires, run a ground wire from the battery right to ground of the coil. Where ignitor is hooked to. If that doesn't work, disconnect red wire of the ignitor, run wire from positive side of battery direct. If engine starts, you have a low voltage issue. I have also heard about tape covering the module`s eye. Don`t give up, when it runs you will be 1 happy guy. Im still amazed how when the engine runs & starts. Been running this system all winter plowing snow, temps have 32F to -25F in western Canada. Runs like a dream, just wish it had a cab.
This post was edited by Redturbo at 16:55:40 02/10/13.
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Today's Featured Article - Oil Bath Air Filters - by Chris Pratt. Some of us grew up thinking that an air filter was a paper thing that allowed air to pass while trapping dirt particles of a particles of a certain size. What a surprise to open up your first old tractor's air filter case and find a can that appears to be filled with the scrap metal swept from around a machine shop metal lathe. To top that off, you have a cup with oil in it ("why would you want to lubricate your carburetor?"). On closer examination (and some reading in a AC D-14 service manual), I found out that this is a pretty ingenious method of cleaning the air in the tractor's intake tract.
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