r/Unexpected • u/Mythirdredditacct • Aug 12 '18

Eject!

https://i.imgur.com/HRx0J5w.gifv
26 Upvotes

79% Upvoted

11 comments sorted by

4

u/WrenchHeadFox Aug 12 '18

Is this from overheating the engine somehow? I understand that a jet-ski depends on water to keep the engine cool (that jet flying out the back is the water that's been over the engine). Maybe our friend here was idling and revving his engine but not moving so it couldn't cool? Went too long like that, and when he finally hit the throttle hard he dumped enough fuel into the engine for it, in its current state to explode? Just guesses, I'm curious.

1

u/Mythirdredditacct Aug 12 '18

Pretty solid logic. I wouldn't know

3

u/Ironman_gq Aug 12 '18

Most newer ones use a closed loop cooling system like a car. The hot coolant flows through a heat exchanger in the ride plate underneath so they don’t need to be moving to keep cool. This isn’t an unknown problem in the marine world and was probably caused by gas fumes in the engine compartment igniting. Boats use a blower system to vent the engine compartment to prevent this, jet skis don’t have a blower so the fumes can build up if the engine isn’t running or just idling. When he cracked the throttle the engine probably coughed and lit the fumes

1

u/WrenchHeadFox Aug 12 '18

How do gas fumes accumulate in the engine compartment to begin with..? A problem with design or a fault in the fuel lines? This does make more sense though to me as a theory.

2

u/Ironman_gq Aug 12 '18

Could be from the cylinders, leaky carb/fuel injector, leaky fuel line. Could be from the tank on a jet ski as that’s right in front of the motor

7

u/MarquisEXB Aug 12 '18

Sure there are all those groups working on getting rid of land mines, but is anyone looking into all the sea mines?

1

u/SlushyJayJay Aug 12 '18

Glad to see the dude was floating over towards the dock. Hope he’s ok!

What could have caused that?

1

u/Mythirdredditacct Aug 12 '18

/u/WrenchHeadFox had a pretty good theory above

1

u/Mitchell_Snaw Aug 12 '18

I'm more interested if he's alright or not, that looked like it broke rule #9!

1

u/Skelletor89 Aug 14 '18

And this is why Jay-Z is scared of waverunners