VW based 7 cylinder radial | FerrariChat

VW based 7 cylinder radial

Discussion in 'Aviation Chat' started by Protouring442, Jan 11, 2016.

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  1. Protouring442

    Protouring442 F1 Veteran

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    One Stupid SOB
    Pretty cool...

    [ame]www.youtube.com/watch?v=SyRJeZ6s8uM[/ame]
     
    Protouring442, Jan 11, 2016
    #1
  2. Tcar

    Tcar F1 Rookie

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    Tcar, Jan 11, 2016
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  3. ArtS

    ArtS F1 World Champ Owner Silver Subscribed

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    ArtS, Jan 11, 2016
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  4. vincent355

    vincent355 F1 Veteran Rossa Subscribed

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    I've seen that one in person. He also has a bigger radial on a stand, never checked it out though.
     
    vincent355, Jan 11, 2016
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  5. Protouring442

    Protouring442 F1 Veteran

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    I'm thinking Castor oil and an oil can, like in WWI engines...

    Same engine, same guy... or did the link not work for you?
     
    Protouring442, Jan 11, 2016
    #5
  6. Tcar

    Tcar F1 Rookie

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    Got "Page Not Found"...

    Did a search.
     
    Tcar, Jan 11, 2016
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  7. Tcar

    Tcar F1 Rookie

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    Tcar, Jan 11, 2016
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  8. Bob Parks

    Bob Parks F1 Veteran Consultant

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    I remember in 1944 working on the line and prepping airplanes for the daily mission. The lower cylinders were trapping oil that had drained out of the crankcase. The procedure was to slowly and carefully turn the props to clear the cylinders and work the oil out of the lower cylinders. There was a 1/8th inch dia. hole in the bottom of the exhaust collector ring and the oil poured out of that as we cranked the props. For us there was no definite number of blades to push. We kept the blades going around until the amount of draining oil was diminished to a minimum. There was always a pool of oil at lest a foot in diameter. If one looks between the two bottom cylinders you will see the sump. Oil collected therein was pumped into the tank by a scavenge pump. It was then pumped back into the engine via passages in the rotating parts. There was a steady loss of oil during the operation of the engine due to the required clearances in an air cooled radial and the disparity of expansion rates in the steel and aluminum parts. The B-29 had a 55 gallon tank behind each engine and sometimes they were empty at the end of a mission. Their engines, the R3350, leaked great quantities of oil and a crew chief once mentioned the it was the only externally oiled engine in the Air Force.
     
    Bob Parks, Jan 12, 2016
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