Bought a Craftsman 6.75 hp self propelles mower to use for trimming. My 15 year old son decided to try it out while I was @ work. . He ran it and seized it up. When I got home and he told me the mower was broken, I tried to pull it and it was seized. You know that bottle of oil they come with? He didn't put it in the crankcase!!
I removed the plug, put a lil MMO in there. I filled the crank with MMO. I started it and let it run for a few minutes. Lots of smoke. Then I vacuum pumped the MMO out. It had lots of pretty glitter. I then totally filled the crankcase with good ole paint thinner to kinda rinse it out. I vacuumed this out after letting it soak a while.
Wow, dirty!! Then a mix of MMO and ST syn 10W30. Ran it under load (cut grass) for about 10 minutes. Vacuumed and Added straight. St syn 10W30.
The mower seems to be fine, lotsa power and no smoking. I don't know if my course of action was proper, but it seemed to haved worked for me. Was worth a shot to save a 350.00 mower.
I removed the plug, put a lil MMO in there. I filled the crank with MMO. I started it and let it run for a few minutes. Lots of smoke. Then I vacuum pumped the MMO out. It had lots of pretty glitter. I then totally filled the crankcase with good ole paint thinner to kinda rinse it out. I vacuumed this out after letting it soak a while.
Wow, dirty!! Then a mix of MMO and ST syn 10W30. Ran it under load (cut grass) for about 10 minutes. Vacuumed and Added straight. St syn 10W30.
The mower seems to be fine, lotsa power and no smoking. I don't know if my course of action was proper, but it seemed to haved worked for me. Was worth a shot to save a 350.00 mower.