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Rats!! Crank pulley's got a crack..... 140-160 1973

posted by  walrus3 on  Fri Mar 12 09:08 CST 2004
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last visit: Mon Dec 2 14:20 CST 2013
[RELATED]

I cleaned up the crank pulley for the engine for the Yellow Peril and found
out why the front was so slimy, although the felt seal didn't look too bad.
I had put the timing cover on with the seal sleeve on the crank, forgetting
that the dual-groove pulley for AC/PS has its own seal surface. Looking
at the pulley, it has a crack in the seal surface coming up from the keyway.
Anybody got a good crank pulley for a B18 or B20 they would part with for
a reasonable consideration? We aren't running AC or PS so either the single-
groove pulley without the seal sleeve or the double-groove pulley with the
seal sleeve would work.
Thanks for any help you can provide!
--
George Downs, Bartlesville, Oklahoma, Central US








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    Rats!! Crank pulley's got a crack..... 140-160 1973

    posted by  jparker3 on  Sun Mar 14 08:11 CST 2004
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    last visit: Tue Jun 9 18:47 CST 2009
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    Not necesarilly cheap, but we are now stocking aluminum crank pulleys that slightly underdrive the water pump and alternator.

    John
    V-Performance.com








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      Rats!! Crank pulley's got a crack..... 140-160 1973

      posted by  walrus3 on  Sun Mar 14 08:21 CST 2004
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      Thanks, John, but I believe with heavy lifters, etc that is not exactly
      what I need.
      Is your porting plan secret or could I get some hints? In the past I have
      pretty much just lowered the hump that sticks up into the passage, and
      smoothed (but not polished) and matched the manifold joints. Seemed right
      to me but I have not really done much in the way of serious research.
      Thanks,
      --
      George Downs, Bartlesville, Oklahoma, Central US








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    Rats!! Crank pulley's got a crack..... 140-160 1973

    posted by  blackjackmc on  Sun Mar 14 07:02 CST 2004
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    last visit: Mon Jul 27 10:24 CST 2009
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    George, carefully inspect crankshaft snout and keyway for flogging . As pully is cracked it could cause wear and destroy fit for replacement pully. Regards Jack.








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      Rats!! Crank pulley's got a crack..... 140-160 1973

      posted by  walrus3 on  Sun Mar 14 08:24 CST 2004
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      last visit: Mon Dec 2 14:20 CST 2013
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      Neither the one I took it from nor the one I planned to put it on seem
      to be damaged but I'll examine a bit more seriously. I suspect this may
      be the result of an air conditioner compressor lockup or some such.
      The pulley was cast iron and the AC compressor had been removed.
      Since I have a spare crank that has been shot peened, the crank out of
      that engine may or may not be used again.
      Best regards,
      --
      George Downs, Bartlesville, Oklahoma, Central US








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    Rats!! Crank pulley's got a crack..... 140-160 1973

    posted by  Mark-Richardson on  Sat Mar 13 11:55 CST 2004
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    last visit: Sun Jul 12 12:38 CST 2009
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    George-

    My son and I put AC in a 71 142 therefore we replaced the single pully with a double. It seems like what we took off was two piece, the pully itself stamped and a sleave of some kind that was a b--- to get off, but we did it. I keep about everything so it is around somewhere. If it sounds like something that will work for you let me know and I will start the digging process.

    Mark Richardson-Hutchinson,KS







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    Rats!! Crank pulley's got a crack..... 140-160 1973

    uid 14369's pic
    posted by  KLR142 on  Fri Mar 12 11:16 CST 2004
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    last visit: Mon May 9 12:44 CST 2011
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    I've got a big heavy pulley from my 140 that i replaced with a thin one from Shayne. It is off of a 74 b20, and I think it actually has 3 grooves, unless they never came like that. If they never came like that, it is a double groove, i just never really looked at it hard. Email me if you'd like it. Peace
    --
    Kyle - attending Ore. State, while my lil 68 142 (74 b20, broken m40) sleeps... (check out my website, www.cardomain.com/id/kneedsacar







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