engine run backward

>>17755891
shift into reverse
simple

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>>17755909

>>17755891
Nothing stopping you, but your entire tranny also has to be backwards which means your differential does too

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>>17755909

You need a sufficient amount of poo smeared all in your stinky butthole before you can even consider making an engine run backwards.

>>17755891
>what would it take to make an engine run backwards?
Observe it from the opposite end

Cam
Starter (easy as rewiring the studs)
Intake/exhaust ports and tubing (exhaust out intake and intake through exhaust)
Oil pump (won't pull oil in reverse)
Water pump (vanes won't work in reverse)
Misc sensors may not work in reverse (cam position or similar)
Misc hoses maybe
Seems about it

>>17755932
Why not just invert the diff? Transmission should work correctly then

Don't big ship engines change engine rotation to reverse?

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>>17755909

>>17755947
If it's remotely modern it'll also have oiler jets on the the wrong side for ccw.

>>17755891
just turn it around

Why though?

>>17756023
This, I've seen plenty of car engines mounted to pumps via harmonic balancer

>>17755891
it was popular accident in old two strokes. you're just standing on lights with clutch on, something sounds wrong for one little moment, then everything seems to be fine, you let go your clutch and lose balance because bike goes wrong way

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you'd have to get custom cams, probably screw around with your timing set-up (tensioners generally on slack side and what not). use an old honda CCW motor in a modern set-up, its already running in the "right" direction!

https://www.youtube.com/watch?v=YyQ78gHTAiA

>>17756029
during WW2, the P-38 had left and right Allison V-1710's. the propellers rotated different directions and the plane was very balanced. once trimmed, you could fly it by tiling your head.
did they do that wit a direction-changing gearbox, or did the engine actually turn the other direction?

>>17755932
true, it occurred to me what carnage would the transmission go through if you reversed the engine direction.
but there are other applications, marine transmissions can run equally well either direction. or you could put a pump box on the back of the engine, and run hydraulic pumps. lots of big off road gear works that way.

>>17755947
good point on the water pump. maybe use an electric pump.

I don't think the intake and exhaust ports will be affected. you still suck air in and push air out, the piston moving up and down does not care which direction the crank is rotating.