Solutions To Spark Plug Problem On Toro Ground-Master Mower
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John Youngdahl, Green Isle, Minn.: “My wife has a Toro Groundmaster mower with a 4-cyl. aluminum head. One day one of the spark plugs blew right out. After taking a look, I realized the last mechanic who worked on the tractor put short-reach plugs into the long-reach holes, so only about half the threads were used. The tractor had been running for quite a while like that so that the lower, exposed threads were filled up with carbon.
“I didn’t dare just screw in new full-sized plugs because turning through the carbon might damage the threads. So I took an old plug and cut vertical slots across the length of the threads so that when I screwed the plug into each hole, the carbon would have somewhere to go – into those slots. When I pulled the plug out of each hole, the slots were full of carbon. The idea worked perfectly.
“This idea would work anytime you’re using a plug or bolt to clean out a threaded hole. Rather than grind the dirt or rust into the threads, it allows you to pull out whatever is plugging them up.”
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Solutions To Spark Plug Problem On Toro Ground-Master Mower FARM HOME Lawn Mowers 31h 38 John Youngdahl Green Isle Minn : “My wife has a Toro Groundmaster mower with a 4-cyl aluminum head One day one of the spark plugs blew right out After taking a look I realized the last mechanic who worked on the tractor put short-reach plugs into the long-reach holes so only about half the threads were used The tractor had been running for quite a while like that so that the lower exposed threads were filled up with carbon “I didn’t dare just screw in new full-sized plugs because turning through the carbon might damage the threads So I took an old plug and cut vertical slots across the length of the threads so that when I screwed the plug into each hole the carbon would have somewhere to go – into those slots When I pulled the plug out of each hole the slots were full of carbon The idea worked perfectly “This idea would work anytime you’re using a plug or bolt to clean out a threaded hole Rather than grind the dirt or rust into the threads it allows you to pull out whatever is plugging them up ”
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