Posted by Nebraska Cowman on February 23, 2009 at 04:39:45 from (66.252.120.177):
In Reply to: Allis Update-POP posted by Lanse on February 22, 2009 at 18:21:06:
Chucky. There is nothing wrong with your tractor. You need to time the mag right.
FIRST, (this is simple) Take out the #1 spark plug (thats the one at the front, closest to the radiator) Now with your thumb over the spark plug hole have a friend crank the engine over till you feel air pressure on your thumb, (you might have to try this several times to get it right. Once you start to feel some air coming out, STOP cranking. Now, with a piece of wire or something, (I use a screwdriver or my plier handle) poke in the hole and continue craking the engine SLOWLY. You will be able to tell when the piston is at it's verry top. Grab the fan and rock it back and forth a little to be sure it's at the top. (you might want to take all the spark plugs out so it turns easier) NOW....without moving ANYTHING, Take the distributor cap off. See which way the brass piece on the rotor is pointing. That is where the spark is coming from and it needs to get directed to number one cylinder at this time because it is the one that is ready to fire. (Do you understand how a 4 cycle engine works? ) Four strokes, Intake stroke, as the piston goes down, intake valve opens and fuel mixture is sucked in. Compression stroke, both valves closed, piston comes up and squeezes fuel vapor real tight, when at the top of the stroke spark occurs BOOM, Power stroke piston is forced downward by explosion, (I know you understand that) both valves are closed. Exhaust stroke exaust valve opens as piston comes up and burnt gasses are expelled. The other 3 clylinders follow in like manner. In your case 1,2,4,3. Let's see, now, where was I? Oh yeah, The rotor. Look at that pointer piece. Now look at the cap. Is it pointing toward one of the holes in the cap? close to it? before or slighly after? Slightly after is good. Before will break your arm. Stick #1 plug wire in that hole. (nothing else matters at this point, let's get the tractor running first) Now continue in a clockwise direction and insert the other plug wires, 1,2,4,3 and reinstall the spark plugs. Try starting it now. Unless you have had the magneto apart and messed up the internal timing (very easy to do) it shoud at least try to run.
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