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Where is the Random Thread of Randomness stuff that doesn't belong in other threads thread?
- Thread starter Mirah
- Start date
Colonel Kira's Left Tit
Bearded Belly of Bajor
Volpone
Zombie Hunter
Does anyone here understand lawnmower engines? I probably understand them more than most people, but there's a lot that baffles me. Mowing a lawn today. Blade lightly grazed a paving stone at the very end. Had a look under and the blade wasn't perfectly lined up on its mount (there are 2 holes in the blade and 2 pins in the mount so it's all supposed to lock together). But it looked like it was close enough, I didn't have my tools handy, and I was trying to get a job done. Mowed for a bit more and suddenly the engine starts idling terribly--way low rpms and Brrrmm!....brrrrmmm!....brrrmmm!....brrrmmmm!.... while black puffs of smoke come out the exhaust in time with the revs--instead of the regular BRRRRRRRRRRRRRRRRRRRRRRRRRR........ Tried killing it and restarting. Tried adding gas. Tried pulling the air filter. Tried pulling the muffler. Fiddled with the throttle linkage. No luck. Limped along for awhile but the engine died again so I had another look underneath. The blade was significantly misaligned. Since the weight of the blade and the effect of grass hitting it is a pretty big part of lawnmower load I scrounged some tools and put the blade back where it was supposed to be. No significant improvement--although there was a slight improvement and the engine sounded like it was trying to get back into its proper groove. Finally I had a big nasty clump of grass so I tilted up the front of the mower and lowered it down onto it--and the engine roared back to normal.
So clearly the blade misaligning caused the problem but in addition to realigning the blade, apparently the engine needed a sort of load shock to jar it back to normal operation. Weirdness.
So clearly the blade misaligning caused the problem but in addition to realigning the blade, apparently the engine needed a sort of load shock to jar it back to normal operation. Weirdness.