Recent comments in /f/gifs

Apocrisiary t1_iwg9th9 wrote

Hahaha, oh yeah, some deserve it and a bit more malicious.

I was mad as all hell for like 10 min, as I mentioned, not a morning person. But once I got on some dry clothes, and a cup of coffee it was all good again and we laughed about it.

We had a boss that was a royal dick, once when he for the millionth time did something to piss us all of, we lifted his car on top of a shipping container. We had 90T forklifts, and only us on the floor had the license. No idea how he got it down, cuz we went home. But it was gone the next day and we never heard anything.

2

cbxsix t1_iwg5had wrote

Reply to comment by evilleppy87 in How an engine works. by ooMEAToo

It's off because of the huge amount of lash. The valves open too late and close too early because only the ~top half of the cam is actually hitting the valve stem. Otherwise it's a cool model!

3

zebrawithnostripes t1_iwg5co5 wrote

Reply to comment by mkillham in How an engine works. by ooMEAToo

Blue valve opens, gas gets injected, piston is pushed back up, gas compresses, spark, boom. Red valve opens and smoke exists. Note how the piston does 4 up/downs in a cycle. Only 1 of those steps is powered by gas dirextly. The 3 other steps are powered by the movement of another piston.

The real beauty in there is the cam shaft IMO. The green things moving the valve. They have to be perfectly configured andnthe gear ration needs to be precise otherwise the valve wouldn't open at the right time.

This is not my expertise though ... I could be wrong

4

johnson_united t1_iwg5bhs wrote

Reply to comment by mkillham in How an engine works. by ooMEAToo

Intake - piston travels down to pull in air/fuel mix; compression - piston travels up to compress mix; power - mixture ignites, forcing piston down; exhaust - piston travels up to force out exhaust; process starts over.

Exhaust cycle for the valve timing seems a little bit off, but it’s close.

18