Evaluating an 861 and an 860 for which one to keep, which one to sell. Both have 172 ci gasoline engine. This is the 861:
Tractor had not been run in a year or so when I bought it. I did have to repair a short in the distributor to start it...and while in there replaced points/condenser/rotor/cap. Also replaced the carbon string plug and coil wires with real wire core. New IC14 coil and rewired around resistor.
The 861 needs a carb rebuild, which is scheduled. Plugs are dry sooty. Cranks and runs with just over 20 lbs oil pressure (confirmed with two gauges).
Compression dry/wet readings after warm up, throttle open:
165/175 145/160 160/165 155/175
I'm not sure what the readings are supposed to be...are these high? I'm sure the differences between cylinders and between dry/wet are more revealing.
Specs in Shop Manual say compression 205 lbs at 1200 RPM. But, that doesn't tell me what it should be for a compression test. Advise?
One thought I had is, after the carb rebuild to just work it good and see what changes, if anything???
Tractor had not been run in a year or so when I bought it. I did have to repair a short in the distributor to start it...and while in there replaced points/condenser/rotor/cap. Also replaced the carbon string plug and coil wires with real wire core. New IC14 coil and rewired around resistor.
The 861 needs a carb rebuild, which is scheduled. Plugs are dry sooty. Cranks and runs with just over 20 lbs oil pressure (confirmed with two gauges).
Compression dry/wet readings after warm up, throttle open:
165/175 145/160 160/165 155/175
I'm not sure what the readings are supposed to be...are these high? I'm sure the differences between cylinders and between dry/wet are more revealing.
Specs in Shop Manual say compression 205 lbs at 1200 RPM. But, that doesn't tell me what it should be for a compression test. Advise?
One thought I had is, after the carb rebuild to just work it good and see what changes, if anything???