Hi All,
Recently purchased another older Greenfield for mowing the "rough" parts around our place. I am using it as a bit of a project to teach my teenage sons a bit about engines, mechanics etc. It is also the mower they will use to help me mow.
The 11.5hp engine has the following ID numbers:
Model: 28D707
Type: 0134-02
Code: 951213ZA
The engine uses a bit of oil and blows some blue smoke when under heavy load. The smoke is not obvious when under light to medium load. Engine starts and runs well, both hot and cold, - just a slight "pop" from the exhaust every now and then, accompanied by a "chuff" of blue smoke. Seems to still develop enough power to cut 8ft high grass!
I am asking for advice on what might be a reasonable, cost effective strategy on the repairs when I remove the engine. I am thinking maybe new piston rings, a quick hone of the bore (by hand with sandpaper), and lap the valves. I am assuming the internals are still in fairly good condition, given the engine runs well - obviously I haven't had it apart yet so I don't know for sure.
Any advice will be gratefully received.
Regards,
Andy
