Posted by MarkB_MI on July 24, 2016 at 18:12:32 from (70.194.20.140):
In Reply to: Re: Why No Spark posted by BolivarRatman on July 24, 2016 at 11:12:43:
Sorry, but your "systematic process of elimination" has you changing stuff which you have no reason to believe is bad. While you're at it, replace those rusty lug nuts and that worn fan belt.
The more things you change, the more likely you are to create a new problem that didn't exist before you started trying to fix the original problem. You are correct that it's probably out of time, if only because you deliberately changed the timing.
On vehicles with timing chains, it's common for the chain to jump a tooth on a worn sprocket. But I think that tractor has timing gears, not a chain. It is possible, however, for a distributor or camshaft failure to cause timing to chain. I've seen it happen when the pin securing the distributor gear to the shaft sheared. Usually the distributor doesn't turn at all if that happens.
Running poorly with 3/4 choke doesn't sound like an ignition problem. Are the spark plugs wet? If they aren't (after all that choking), you're not getting enough fuel.
I don't mean to be harsh, but these are things I've learned the hard way from fixing a lot of different stuff.
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