how much lower crank seal leak is too much?

My Rule is if it leaks, it needs to be fixed. I and a few other guys have run a mower once with out a seal, but its got no power. Id cut the rest of the season then replace it in the winter..

thanks imaLawnBoyFreak.... cause my grass needs a cuttin and I just shined her all up.... glad to find out it's not ultra-critcal

This is leaking too much, and time to reseal.....

http://www.mytractorforum.com/showthread.php?p=1339026#post1339026

thanks Just Plain Al, I don't know how these motors work and was concerned a leak would cause some sort of piston/cylinder damage

after a tank and a 1/2 of gas

ok the 3060 is leaking 5times that much! plug is black and sooty :sad_02: