Not Mopar powered

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Yote

Yote

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Saw this at a recent car show. Thought it was interesting enough to share with FABO members. I would surely like to see it run down the strip !!!
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That definitely qualifies as different! What is that, a Rolls Royce radial aircraft engine?
Love the little 757 cu. in on the hood.
 
I worked on Jacobs 7 cylinder radials when i was in aircraft maintenance mechanic school back in 1990. Neat engines. Top cylinder is always the last removed on disassembly, and first installed on reassembly. Its the one with the "master rod" its cool to actually see one working instead of as a school teaching tool. Had one on a run stand, and always have to run the props through by hand mags off checking for liquid lock before firing it up. If that happened, had to remove the spark plugs on the lower 2 cylinders to drain the oil out before trying to start, otherwise you would blow the lower cylinder heads right off the damned thing. Its a dry sump system, theres supposed to be a check valve on the way to the oil tank. Sometimes it leaks back. We also had a jacobs engine in powerplant 1 class that was a cutaway engine with 1/4 of the cylinder cut away and the rocker boxes removed so the teacher could show the otto cycle in real time by rotating the crank with a turning bar. Cool stuff. Like most old skool mechanical stuff out there i like it, i like it a lot.
 
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Thanks! Cool way to start my day. The engine is very cool and learning about it as well is really awesome. Never know about the oil drain back - guess the lawn tractor won't be getting one too soon. The last plug will hit the mower deck- LOL!
 
Syleng1 said:
Thanks! Cool way to start my day. The engine is very cool and learning about it as well is really awesome. Never know about the oil drain back - guess the lawn tractor won't be getting one too soon. The last plug will hit the mower deck- LOL!
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Heres some more radial engine information. The cam is pretty interesting as well. Its geared in time to the crankshaft but its a flat plate type of arrangement in front ofvthe crankshaft with 2 tracks with cam lobes on them. Called a cam drum, one track is intake, one track is exhaust. The lifters are roller type keyed into the crsnkcase so they dont turn sideways in their bores. They ride on the tracks and run up and down on the lobes on the tracks

The master rod is timed #1 and is slightly longer in stroke than the other 6 articulating rods that run off of it. When you time the mags, the lobes for the points have 1 dot on them, this dot has to correspond to #1, because that lobe on the magneto timer is slightly different to go with the slightly longer stroke.
 
Yep, the R4360. We had one at school for display, it was a beast, gotta love it. Pressure carbs, crank driven supercharger, pistons the size of large coffee cans, oil dripping everywhere when you park it. Some of these engines also had multiple power recovery turbines. I think 3 per engine. Basically the exhaust end of a turbo, and the turbine shaft was geared into the back of the crank to give the crankshaft a little more oomph.
 
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moparmat2000 said:
Heres some more radial engine information. The cam is pretty interesting as well. Its geared in time to the crankshaft but its a flat plate type of arrangement in front ofvthe crankshaft with 2 tracks with cam lobes on them. Called a cam drum, one track is intake, one track is exhaust. The lifters are roller type keyed into the crsnkcase so they dont turn sideways in their bores. They ride on the tracks and run up and down on the lobes on the tracks

The master rod is timed #1 and is slightly longer in stroke than the other 6 articulating rods that run off of it. When you time the mags, the lobes for the points have 1 dot on them, this dot has to correspond to #1, because that lobe on the magneto timer is slightly different to go with the slightly longer stroke.
Click to expand...
Man I tried to follow your explanation, but you lost me somewhere around the Bakery!
 
I don't know I think it was right after " Heres some more Radial information" But I'm that way I have to see it with my eyes to get a handle on how things work. Obviously you have spent some time with these things.
 
Here is a cartoon/animation of a R4360. Actually pretty easy to follow. The guys that invented/designed these things had to be pure geniuses!
 
BTW: It was junkyard built...the owner owns a junkyard,built it with a "rodders buddies building night"....
 
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