Posted by Michael Gravenmier on March 16, 1998 at 11:44:02:
In Reply to: 8N WONT'S START posted by BOB on March 16, 1998 at 06:53:11:
: GUYS, IM BANGING MY HEAD....
: MY 1950-52 8N WON'T START, THE STARTER TURNS, I HAVE DECENT SPARK
: ON OUT FO MY COIL AND AT ALL FOUR PLUGS. PLUGS DO GET WET. NEW POINTS, SET AT .015, NEW PLUG WIRES.
: THE ONLY TIME I EVEN GET A SPUTTER IS WHEN I JUMPER AROUND THE IGINITION
: RESISTOR, SO I REPLACED IT....DIDN'T MAKE A DIFFERENCE.
: I HAVE 6 VOLTS INTO THE RESISTOR, ABOUT 4.5 OUT TO THE COIL.
: I HAVE ALSO SWAPPED OUT THE COIL...THINKING MAYBE THE SPARK WASN'T
: STRONG ENOUGH. I STARTED LOOKING AT THE STATER ITSELF, AND POSSIBLY THE SOLENOID (STATER RESISTOR).
: THE ONLY THING THAT I SAW THAT WAS EVIDENT, WAS THAT OCCASIONALY THE STARTER SEEMS TO
: DISENGAGE....OR CHATTER. I HAVE TO STOP WITH THE STARTER BUTTON AND THEN RESUME AGAIN.
: THE TRANNY IS IN NEUTRAL (MECHANICAL CUTOUT).
: ANY SUGGESTIONS, AS TO WHY THIS WON'T START OR WHAT TO LOOK AT???
: WHAT COMPOUNDS THE TROUBLESHOOTING IS THE 6VOLT BATTERY DOSN'T LAST LONG
: AND THE CARBS FLOODS, BUT I HEAR THIS IS TYPICAL.
: THANKS AGAIN,
: BOB
Bob,
You still need to check several things.
First, do you have adequate compression in all
four cylinders? If not, you could have some
stuck valves, or a broken connecting rod. Next
are you sure it is timed correctly? If you
have had the cam or distributor out, you could
have gotten it 180 degrees out of time. Next
check to make sure the plug wires are on in the
correct firing order. Four cylinder engines
have two firing orders, 1-3-4-2 and 1-4-3-2, I'm
not sure which one is correct for your engine.
You'll have to look it up. Lastly, check the
carburetor float and the needle valve adjustments.
If you are getting too much gas to the cylinders,
the engine won't fire. As a last resort, I guess
could try and pull start the tractor. Sometimes
that's what it takes if the engine hasn't been
run for a long time.
Good luck,
-Mike