A mechanical technical marvel! Its wonderful to see that there are people who have saved a few from the scrap yard so that young people can see them in running condition!
That's a badass engine!! Great to see it at full throttle! We cant appreciate it on a plane! It must be close by on the ground where we can see and hear it in all its glory!
I thought for sure this would be another motor start up but never see it roll video, but we get to see it run once at the end of the video! Nicely done and I'd love to see more of this monster running!
This was same engine that early versions of Boeing B29 bomber had. Later versions of B29 replaced Wright engines with 4 Pratt whitney 4360 CI. These round motors sure make a sweet sound
It is very interesting to see an aeroplane engine in this application! I am more disturbed to see the particular oil sticker brand connected to that beautiful engine ...
Ditto on the oil comment. I had a '66 Pontiac with a 389 that held 6 quarts of oil. I changed it every 3,000 miles and it would be a quart low (mostly a valve cover leak). I tried Havoline once and at 3,000 miles there was NOTHING on the dipstick.
i have heard that they spray in water vapor with the fuel so it makes highpresure steam in airplanes. but i dont think they do that here. these engines warm-up pretty slow, you can tell by looking at the bottom exhaust still smoking. the oil leaks down into the bottom cilinder. on allot of yt vids you can clearly hear that the engine isnt very warm yet, then when the stop pulling it purrs like a kitten! god the sound is just earcandy!
darkevilapie hi, actually you are talking about the water and alcohol injection system (AD I) which is used to prevent detonation when the engine is at full power. It isn't used for cooling directly. Usually radicals are cooled with propeller airflow, so I was wondering how this engine was kept cool.
darkevilapie The bottom cylinder was always the last one to burn clean. The common practice on shutdown was to shut the oil off until the oil pressure gauge dropped to zero to get as much oil out of the engine so it wouldn't fill a bottom cylinder and cause hydraulic lock.
That cylindrical shroud that goes all the way around the engine probably has a prop or fan inside it - a large duct - which is forcing or pulling air across the cylinders. An engine like that CANNOT run very long or produce power without significant cooling air across the cylinders.
Needs the exhaust collector rings in place. Those 18 pipes could be replaced by just two outlets and it would run smoother and quieter....bad practice as it is.
Draxindustries1 the reason for the 18 individual pipes instead of 2 exhaust rings like an aircraft application would have is to help the engine breathe better engine breathes better = MORE POWER , same reason guys put open headers on a big block V8
+wildcoyote34 Collector rings provide back pressure which believe it or not would actually help this engine produce more power than those open pipes and it would run a lot quieter...
Draxindustries1 radial engines don't scavenge correctly with backpressure the exhaust pipe that the collector rings empty into opens into the aircraft slipstream and the way they do actually creates suction which actually does the reverse of what you are saying ,, it actually Reduces back pressure these engines are mechanically supercharged and adding back pressure actually defeats the boost created by the supercharger,, and this is a tractor pulling machine , who cares if it's quieter
Actually the Wright R-3350 had a 3 stage exhaust recovery turbine and a 3 stage compressor turbine linked with the crankshaft (like a turbocharger an some way). In this case i assume they removed the exhaust turbine (but it can be a factory engine).
He's wiping excess fuel/oil from painted surfaces. Judging by how close he gets his hand to the exhaust, I'm guessing they're running alcohol or methanol.
Dokker62 and therefore it is in working order today, it would have been melted and metal reused if it werent for this sport, keeping old beautiful engines going :-)
+916fanatic1 No rotor in front of the engine to provide vast ammount of air = useless fins. It's probably non cooled at all considering it has to run for 20 seconds
+916fanatic1 They generally don't run long enough to get really hot in those tractors. If it's running Alcohol for fuel, it will run cooler than with the aviation fuel.
it's cast iron, they don't really run too long, and they're using some kind of spirit for fuel. all of that gives them enough leeway to not have moving cooling things. A large oil tank helps too. These engines are -fairly- common so if they do need to rebuild, it wont be that hard. And on this tractor this engine is worked waaaay less than it would be on a plane.
2:45 omg How tf much does that man on the left eat?! The world is getting bigger and bigger ... even faster than our lovely motors *as shown in this video* .
I don't think the speed in which that tractor travels, is enough to keep that engine from overheating. I would very surprise if it lasted very long in that application.
The only available mass produced fuel still available for these engines is 100LL. These engines were designed for 115/145 though, which means they won't be able to run at higher manifold boost pressures and consequently will be limited to how much horsepower they can make. There are limited runs of 115/145 still made for things like the Reno air races though, but it's extremely expensive and I doubt a tractor pull team has enough cash to get any. That engine doesn't have a turbosupercharger on it regardless so using better grade fuel is pointless. I hate seeing idiot tractor pulling using rare irreplaceable engines just for a few minutes of fun before blowing them up and just tossing them in the scrap heap like nothing.
There are a few around still. I earned my A&E in 1968 just before Jets. When Jets were added in 1969 to the A&E [Engines], the ticket changed to A&P [Power Plants]. I still have the cylinder base nut wrenches. After the late '80's, I just did Bench Work. This year I have the valve seat cutting equipment for sale...with the very Long stone driver for the Integral head/cylinder Radial Jugs. My son does Automotive, but not Machine work. There are no Grandsons...or Great Grandsons to inherit my Tools and Equipment. These days, when you mention the Old "Radials" most people say "Radicals"??? So funny! HaHa!
@@lifuranph.d.9440 also most ppl refer to them as "round" engines.. while in fact the correct term is "radial" engines.. but i guess in todays clueless world both terms work.. shame though theyre a dying breed of engines.. most aviation piston engines today are made boxer 4's or 6's..
This is a great 2nd life for these obsolete old war horses. I'm glad folks have interest in these old radials and v12 engines in performance applications where grunt is needed.
Why? if it was not here, it would either sit on a trailer, and be startet for people to hear once in a while, or sit in a dusty barn, or get crushed. here it is started for peoples amusement and it has a purpose, unlike the ones mounted on trailers..
bullshit...there is a b29 that could use it as well as one being restored....these engines are needed for a more important use than being wasted on the ground...if it is not airworthy...sure,use it,or run it for display...but if not...fly it. enough said.
well i dont know about wheather there is a shortage of engines, but i would doubt it. but what purpose would a b29 serve today? none other than airshows, for peoples amusement, and thats the same it is doing here :-)
besides, just by searching for 3350 i found 5 different engines mounted on trailers, in my opinion, those engines are far more wasted than this one. and airwothy, you mean if they bought a worn down engine, it would be ok to run on a puller, but then if they spent the money rebuilding it, then all of a sudden it would be a waste, makes no sense :-)
Again, engines are made to run, if this thing has been rotting for years and they resurrected it from it's death it's fine to me (and should be to you as well). At least they keep it running.
+bachforelle11 depends on the model, power ranged from 2200 to 3700 hp. I don't think they made much changes than running it on methanol. Maybe a change to the intake.
AS OF JULY 2ND , TAKE A PEEK ON EBAY AT THIS LYCOMING ENGINE ... JUST COPY AND PASTE : 1930s Lycoming Aviation Engine Model 0-145-A1 Rare Airplane Motor 4 Cylinder LET ME KNOW WHAT YOU THINK .
