Quote:
Originally Posted by FrankF3
The 1862 wiring is running fine now. It is now developing a few new bug. When mowing with it on a hot day after about 2 hours, the ignition cuts out on it. My father replaced the ignition switch, but I am more leaning to a hot soak condition and the coil/ignition module going bad. Is this a common failure with the 18 HP magnums? BTW - if you leave it where ever it stopped for about 2 hours with the hood up, it will fire right up when you try starting it again. When it stopped, I put a little gas down the carb throat, not a single, pop, burp or backfire.
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That is EXACTLY what my 1862 was doing and it was indeed the coil/ignition module. Not an overly expensive part (less than $45) but a bit of a biznatch to get to. You will need to move the engine forward in order to get the cowlings off of the back. It's pretty straight forward, just a lot of parts and a bit time consuming.
Going from memory, if I had to do it again it would go something like this:
- disconnect the throttle/choke cables
- disconnect the fuel line
- disconnect the starter wire
- unplug various other electrical connections
- take apart the forward universal (be careful not to let it fall apart)
- unbolt the 6 or so bolts that hold the motor mounting plate into the frame
- move the motor fwd or remove all together
- take off tins/cowlings
- remove and replace ignition unit
- set magnet gap (I think it's around 0.015 inch but I just used a couple layers of paper to determine what the gap for the old one was prior to removing it, then used the same number of layers of paper to set the gap on the new one. Remember to spin the engine over by hand to make sure there isn't any contact with the magnets on the flywheel.
- Reassemble in reverse order
- FIRE THAT PUPPY UP!
- Enjoy a frosty yeast and barley beverage for a job well done.
