For Sale 100$ 1949 Reo Motors Gas Engine Model 552 Type A

Sweet vintage Reo Gas Engine! It's a 552 Type A and it runs on spray!!
Would be sweet on a board track/rat build, with Super cool CW Rotation with a CCW gear-driven output.
Asking 100$ + shipping from MN
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It looks very svelte. I wonder how skinny it could get without the fins and starter? The engine has a built in 2:1 reduction. Only got 1-1/2 HP, honda gx35 kind of power. Might be able to get it to rev higher depending upon the governor, crank balance and valve springs.

It would need a jackshaft to get a useful reduction ratio, so it might make a good shifter bike. 22-25mph max though. Just not much power to work with.

Anyhow

 
It looks very svelte. I wonder how skinny it could get without the fins and starter? The engine has a built in 2:1 reduction. Only got 1-1/2 HP, honda gx35 kind of power. Might be able to get it to rev higher depending upon the governor, crank balance and valve springs.

It would need a jackshaft to get a useful reduction ratio, so it might make a good shifter bike. 22-25mph max though. Just not much power to work with.

Anyhow

Yeah, she's a nice one! Honestly you might be able to get away with a 10t up front and a 48t rear. This engine is more torque than anything, I believe they ran these at a lower speed as well.

But anyways, sweet forum finds!
 
For the 3 hp predator a 12:1 ratio works well. With a centrifugal clutch, 48:12*2 gets you 8:1, that's going to be anemic.

With a cvt we could get 8:1 in high and 24:1 in low which is more realistic, but unless gordy wants to run at redline, just to move, the cvt has to be fiddled with in a way I have only seen once. Build-break-fix/evilcarebear got one to engage at 1000-1200 rpm. He used cast steel, but lost investment lead casting is much more realistic.

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It wouldn't be hard to get lead into the right shape, but it would need some sort of lathe, a wood turning lathe could do it.

There is also the option of tempering a spring or cutting a weaker one of the same width to the same length. That last option is the most realistic. There's a video on the store showing just how easy it is to swap springs.

 
For the 3 hp predator a 12:1 ratio works well. With a centrifugal clutch, 48:12*2 gets you 8:1, that's going to be anemic.

With a cvt we could get 8:1 in high and 24:1 in low which is more realistic, but unless gordy wants to run at redline, just to move, the cvt has to be fiddled with in a way I have only seen once. Build-break-fix/evilcarebear got one to engage at 1000-1200 rpm. He used cast steel, but lost investment lead casting is much more realistic.

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It wouldn't be hard to get lead into the right shape, but it would need some sort of lathe, a wood turning lathe could do it.

There is also the option of tempering a spring or cutting a weaker one of the same width to the same length. That last option is the most realistic. There's a video on the store showing just how easy it is to swap springs.

I just think it's a cool engine.
 
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