ok i know what a rotary is but i have no idea how they work or any of that. Ive been offered a 1200 coupe with a 13B extend port in it. Is there anything i should look for or be weary of? Any help would be greatly appreciated so i dun waste my cash. cheers guys. ps this would be the first time ive even seen a rotary so dumb it down a little if you could

Rotomotion

9378 2666

They are in Guilford, very good work though

John Otter.
U6 / 81 Guthrie St Osb. Pk
94463046.
he builds motors himself. his workshop is immaculate. had a 13BPP S2 RX7 running low low 12s at Kwinana.

i took this from a site when i was looking aswell anyway the john otter guy is a champ very friendly and willing to help. $50 he'll come out and check the rotor out with you. if on your own check mainly for smoke on starup when cold make sure it's cold not just run. a rotary "piston" looks like a bloated roundish triangle. it spins rather than up and down. hope some of this helps

This should help you a fair bit: http://travel.howstuffworks.com/rotary-engine.htm

cheers guys, my knowledge has like quadroopled already. and youre right that john otter guy is pretty helpful. Ill let yas know how it goes

theres a 12a in meblourne for $350 in the trading post this week with gbox, dont know the condition of it though

So what are those engines that they flew in WW1 where the crankshaft was mounted to the airframe, & the crankcase & cylinders spun round with the prop.

This was a very common engine design that was used by all the combatants in those years. Now what was it called,......I know,.. it was called a ROTARY engine, because the whole engine rotated, & it had pistons in those cylinders, so i guess we can fairly say that rotary engines have pistons.

That means that the rotary engine has been well known since at least 1914.

Dodgeman makes a good point: The "rotary" engine was used in aeroplanes since forever. The "radial" is a similar design -- usually 7 or 9 cylinders arranged in a circle -- but the crank turns instead of the engine. But I think it's safe to say that "Rotary" with a capital R has come to mean the Wankel Rotary engine, invented by Felix Wankel and initially developed/controlled by NSU ... and finally perfected by Mazda! The new Mazda "Renesis" engine (voted engine of the year), compared to other engines of similar HP output gets equal fuel economy and low emissions.

ddgonzal
As you well know, the original rotary design was so good, that once WW1 was over, it's never been used since, & with very good reason. They gave many a pilot the sh*ts, literally, as a result of all that castor oil flying around.

I guess that there is a formal name for the Wankel types to separate them from these rotary engines. I suppose it would be a Rotary Piston engine since it's the "piston?" that rotates.
Does anyone know for sure?

There was a rotary engine used in a moyorcycle once. It formed the hub & spokes of the front wheel. No clutch or gears. I think it was called "Magura" & it would have been a pig to ride with all that gyroscopic force in the front. Noisy too, with no exhaust as such.

Quote:
does he? I guess I must have missed it

I guess he's telling godabaute to make sure it doesn't have a WWI aeroplane engine?

maybe next he'll warn us that this coup may actually be a pen for chickens and not actually a car at all...