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Jbull
03-10-2005 21:03:36
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Re: 2010JD Highlift. in reply to StephenMO, 03-10-2005 18:23:49
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Sounds like you've got your hands full. I'm not familiar with your exact application, but I do have a few rules of thumb tips for you.
First, you have got to have air/fuel mixture, then compression, then a nice bright spark at the plugs, and last, some way for the explosion(or exhaust) to get out. Sounds simple huh?, well it actually is. the only trouble is with your tractor, my quess is something is simply out of order. First make sure that the firing order is right. Pull the number one spark plug(the one that is closest to the fan) hold your finger over the hole and have a buddy turn the motor by hand or by "bumping" the starter(careful not go to fast). Just a soon as you feel the compression blow your finger off of the hole, stop, at the moment the number 1 piston should be pretty close to top dead center(tdc) next pull the distributor cap and see where the rotor is pointing in relation to the distributor cap. Follow the plug wire from that spot on the cap and the other end should end up at the number 1 hole(the one with the plug out). if it doesn't, fix it so that it does. next determine which way the rotor turns(probably clockwise).Your firing order should be stamped on the engine block. if it is a 6 cyl. it might something like 163542, and if it is a 4 cyl no guarantees but it might be something like 1432 or 1342. if your rotor turns clockwise just follow the sequence in connecting your wires up. After that is straightened out. make sure you have a strong spark. to become familiar with a strong spark, take the plug out of a good running lawn mower and hook the wire back up and touch the plug to a good ground source on the engine and give the pull rope a good tug, you should be able to hear the spark as well as see it in daylight. Now you can check all of the plugs on the tractor and see what you got.If you've got plenty of fire, and you have plenty of compression, and the air/fuel mixture is getting into the engine, you should have a tractor that will at least start. so many times I have tried to make things to complicated, then the problem turned out to be something stupid and simple. Do you know any more history on the tractor, like whether someone has taken it apart before or after it quit running, and how did it quit running, or did you ever see it run, if so did it sound good, or did it sound like the beverly hillbillies truck? Just remember, all engines have these things in common, they have to have, Air, Fuel, compression, and some means of ignition. and all at the right time!!
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