If you’re wondering: why am taking apart a perfectly good lawnmower the answer is:
it’s not perfectly good. The block is cracked and the block is more money than the whole lawnmower.
What you’re seeing now is the fly wheel. The fly will stores rotational energy which basically means it helps engine rotate when there is no combustion happening in the motor at that specific time.
This is the airbox and the carburetor priming bulb. The carburetor priming bulb puts more fuel in the engine to help it warm up when it is cold.
This is the whole carburetor. The carburetor puts fuel in the engine while it runs, much like a sprinkler, it sprays fuel into the intake port of the engine.
I can tell this engine is very cheap, carburetors are never supposed to be plastic!
This picture shows the pushrods. The pushrods help get the exhaust out of the engine in the air into the engine. A camshaft pushes the rods Pushing the rocker arms which are shown in the background.
here’s a close-up of the rocker arms:
The rocker arms push valves down into the cylinder and lets the air or exhaust in or out of the engine.
They pretty much help the engine breathe.
this is the piston The piston is propelled by an explosion just like people in 90s movies. When the piston comes back up The exhaust valve opens letting the fumes out. When it is done and it starts to go back down, The intake valve opens which the piston sucks air down into the cylinder then the intake valve closes And the carburetor sprays gas into the cylinder which gets compressed and it explodes. The piston does most of the work of the engine.
Comment t to be tagged in the next form. I hope to get the fly wheel off and hopefully expose the crank and camshaft.
That seems like good advice. @ChiChiWerx
@Sm10684 engineering takes a bit of math in school, so be prepared to grind through that to get to where you want to get. Some of the best advice I heard was from an engineering department chair at UVA, who told us, “If you absolutely love math, be a mathematician. If you love building things and figuring out how they work, then get through the math to become an engineer.” I think that’s great advice.
Thanks! I’ve always looked at engineering as a choice. I actually got this lawnmower from a neighbor, I asked around for broken lawnmowers to fix and sell Most of them needed a Carburetor clean XD, nice quarantine project. I currently have a Honda that’s ready to go. @ChiChiWerx
You’re braver than I was at your age, I’d be worried about getting that thing back together, though this one does have a cracked block. Don’t ever be afraid about taking things apart to see how they work, even if they work perfectly well. If you are also fairly good at math, you should consider engineering as a future career choice. Now, if you really want to learn a lot about how that thing works, put it back together before you trash it.
Thanks lol. @Wakescar
I’d prefer a 2-cylinder ;)
Kidding. Nice know-how dude!
Lol that must be so annoying! @MemeLord21
We have a big fat green reel Mower with a engine And my dad decides to use it at like 7:00 am in the morning and it’s so loud XD
Yeah that would be cool @Sm10684
I’d take it apart for the motor mess around with the battery and stuff or you could attach it to a little nitro engine and make
a handheld generator. That requires lots of skill. You could probably do it. @ACEPILOT109
i got an old weed wacker, electric though, but idk what to do with it
What’s funny about that? @ArcturusAerospace
I can use it for scrap metal or if I have another lawnmower like that I won’t have to spend money replacing a part because I already have it. I fix and sell things with small motors to make money. @ArcturusAerospace
@Sm10684
lol
I think it’s fun. @ArcturusAerospace
Why?
Thx. @areyougood