Posted by Steve@Advance on December 21, 2019 at 12:29:53 from (66.169.147.211):
In Reply to: carburetor posted by kenfarmall on December 21, 2019 at 11:57:42:
One way to determine coolant into a cylinder is to top up the radiator, if possible, GENTLY apply some air pressure, only 2-4 PSI to be on the safe side. Otherwise just top it up, let it sit overnight. Pull the plugs, spin it through and watch for coolant to spit out the plug holes.
But if there is no evidence of combustion gasses bubbling up in the radiator, chances are it is good. The combustion pressure trying to get out of the cylinder is way higher than coolant pressure trying to get in.
If there were a bad enough leak to show as coolant out the exhaust, the problem would be easy and obvious to find. It's the microscopic leaks that can be head scratchers.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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