thrust bearing face wear

Discussion in 'Rotating Assemblies' started by Grumpy, Dec 5, 2018.

  1. Grumpy

    Grumpy The Grumpy Grease Monkey mechanical engineer. Staff Member



    if you have a decent , local knowledgeable local machine shop, your dealing with,
    its a very common repair, if you don,t
    "have a decent , local knowledgeable local machine shop, your dealing with,"
    Id suggest you find one to deal with.

    they simply weld a bit of metal as required and grind the surface back to spec..
    .including the bearing radias edge area,
    certainly far cheaper than buying a new 4340 forged crank,

    it sounds like your rear main cap is not seared correctly in the block or the rear main caps improperly machined
    , if the crank was bent or improperly machined the whole thrust bearing,
    not 1/2 would be damaged,
    ID suggest the block be checked carefully by an experienced engine shop machinist

    https://www.thomasnet.com/products/crankshaft-repair-services-20921979-1.html

    http://garage.grumpysperformance.co...haft-thrust-bearing-trashed-in-1-2-hour.5141/

    http://garage.grumpysperformance.co...gine-block-main-cap-movement.6162/#post-19172

    http://garage.grumpysperformance.com/index.php?threads/scat-cranks-related-info.10930/#post-74729

    http://garage.grumpysperformance.co...ain-seal-in-a-gen-i-chevy-v8.1718/#post-38702

    http://garage.grumpysperformance.com/index.php?threads/finding-a-machine-shop.321/#post-55314

    http://garage.grumpysperformance.co...uring-crank-bearing-journals.5478/#post-16429

    http://garage.grumpysperformance.com/index.php?threads/thrust-bearing-wear.619/

    http://garage.grumpysperformance.com/index.php?threads/rotating-assembly-bearings.9527/

    http://garage.grumpysperformance.com/index.php?threads/bearing-crush.10213/

    http://garage.grumpysperformance.com/index.php?threads/bearing-clearances.2726/

    http://garage.grumpysperformance.co...tion-of-crank-durring-short-blk-assembly.852/

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    Last edited: Dec 5, 2018

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