the motor on my lawnmower is blowing oil out the vacuum fuel pump. anyone know what causes this and what is the fix. this is a 17HP model #31F777
found the problem..... breather tube was off at carb. must have been off all winter and a spider had a web inside the tube and was plugged . didnt know this when i put it back on the carb. and started mowin this year. when i took crankcase breather apart to look at the check valve and didnt see anything wrong, i look into the breather tube and got lucky to even see the plug web with all kinds of crap stuck to it. run great now and no oil leak
I'll have to add that one to my flowchart..."did ya check for spiders in the breather tube?" "Doggone if I haven't seen it happen a dozen times!!" :laughing: Do you know what kind of a spider? Maybe the manufacturers can come up with some sort of OEM repellant :laughing::laughing: