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Thread: turning a giant crankshaft

  1. #1
    Jon
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    turning a giant crankshaft

    GIF of a giant crankshaft turning, possibly for a shipping vessel diesel engine. Or, maybe someone on our forum is building a hot rod.

    https://s3-us-west-1.amazonaws.com/h...crankshaft.gif


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    blkadder (07-09-2019), dubbby (04-20-2020), Hemi (04-04-2017), Toolmaker51 (08-11-2018)

  3. #2
    Supporting Member Hemi's Avatar
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    Hemi's Tools
    Thats just AWESOME!!!! A Marine use Crank I bet!

  4. #3
    Jon
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    Lowering a crankshaft into position at the Southwick Engine Works in Sunderland, England. April, 1955.


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  6. #4
    Supporting Member hemmjo's Avatar
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    hemmjo's Tools
    Seems like the throw on the crank in post #1 is very short for a crank that large. Especially when compared to the throw on the one in post #3.

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    It might just be the lighting in the shop at different angles. How much throw do you think #1 has Hemmjo?

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    Supporting Member hemmjo's Avatar
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    hemmjo's Tools
    Quote Originally Posted by greyhoundollie View Post
    It might just be the lighting in the shop at different angles. How much throw do you think #1 has Hemmjo?
    If I had to guess I would say the crank in post one has about 5' or 150cm. The crank pin is clearly offset outside the main bearing journals by a significant amount.

    turning a giant crankshaft-crankthrow1.png

    In image 3, the crank pin off set is clearly inside the main bearing journals. I wonder if this one for something other than an engine, perhaps a pump of compressor of some sort. The short throw would surely limit the amount of torque one would expect from an engine that large.

    turning a giant crankshaft-crankthrow3.png

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    Jon (03-03-2020)

  11. #7
    Supporting Member madokie's Avatar
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    nah no more Hot Rods,,biden will win and pass cash f clunkers 2 and 3, banning modified vehicles ,destroying nonworking black tagged vehicles,and v8's and anything over 200 HP for us ordinary folks..

  12. #8
    Supporting Member marksbug's Avatar
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    no telling what #1 is for, might not be an engine at all...or possiably a humongous mazda rotery engine!!!


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