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Crank Pulley

Discussion in 'Fisher Engineering Discussion' started by t-dawg1982, Nov 20, 2009.

  1. t-dawg1982

    t-dawg1982 Member
    from canada
    Messages: 52

    need help,does anyone know if you have to take the crank pulley off and put the pushing on first then put the crank pulley on,and then the drive pulley on a 92 chev 350 engine,or if you just take the center bolt out of crank and put the bushing right on the outside of crank,fisher underhood hydraulics,thans,it looks like my drive pulley has a bushing already made on the end,any help plz
     
  2. cubicinches

    cubicinches PlowSite.com Addict
    Messages: 1,412

    Remove the center bolt which goes through to the crankshaft, as well as the three bolts which hold the pulley to the balancer. Then the plow pulley goes on top of the OEM pulley with longer bolts in all four positions. No bushings that I'm aware of, the plow pulley has a standoff which pilots in the center of the OEM pulley.
     
  3. sweetk30

    sweetk30 PlowSite.com Addict
    Messages: 1,588

    that is correct. also use some thread sealent on the main center bolt. some motors leak oil from there. mine does. :dizzy:
     
  4. cubicinches

    cubicinches PlowSite.com Addict
    Messages: 1,412

    Oil can make it's way up the keyway in the harmonic balancer. A dab of silicone at the end of the keyway before you install the pulley usually solves that. The threaded hole in the crankshaft snout is blind... no oil coming out of there. :)
     
  5. t-dawg1982

    t-dawg1982 Member
    from canada
    Messages: 52

    does anyone know what size bolts should be used for the center bolt and 3 other bolts,like size and what kind of thread,also do u know if they can be bought at any auto part store?
     
  6. cubicinches

    cubicinches PlowSite.com Addict
    Messages: 1,412

    The center bolt is 7/16-20 fine thread. The other three are 3/8, they can be either coarse (3/8-16) or fine (3/8-24) depending on the harmonic balancer you've got... just have to see what thread the originals are. Not sure what length you need for use with the plow pulley, have to just size them up by measuring the length of the pulley. Should be able to get them at any hardware or auto parts store.
     
  7. t-dawg1982

    t-dawg1982 Member
    from canada
    Messages: 52

    I had a coarse thread but it would,'t work,the 16 and 24 you said does that mean how many threads they have?
     
  8. cubicinches

    cubicinches PlowSite.com Addict
    Messages: 1,412

    That's correct. Threads per inch.