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Thread: Crank bearings?

  1. #1
    Join Date
    25th April 2007 - 23:40
    Bike
    the mighty fzr and gsxr
    Location
    central otago
    Posts
    1,337

    Crank bearings?

    Ok just got a fz750 motor to do up.
    Now im confused. The manual says to subtract the number fron the end of the crankshaft from the coresponding number on the rear of the motor housing. The numbers from the housing are 64446
    minus the coresponding number on the crank 32122
    should give the numbers of 32324
    these numbers should give the new bearing number and colour for each bearing reading from left to right.
    now the bearings that are in it all seam to be number 5's can anyone shed some light on this.
    this crank was a lower milage than the one in my bike and was going to put it in the other motor when i do it up but am worried about the numbers
    winding up stucky since ages ago

  2. #2
    Join Date
    10th June 2003 - 12:00
    Bike
    Kawasaki ZX750-H1~2 (Pre 89 F1)
    Location
    Auckland
    Posts
    401
    Quote Originally Posted by kiwi cowboy View Post
    Ok just got a fz750 motor to do up.
    Now im confused. The manual says to subtract the number fron the end of the crankshaft from the coresponding number on the rear of the motor housing. The numbers from the housing are 64446
    minus the coresponding number on the crank 32122
    should give the numbers of 32324
    these numbers should give the new bearing number and colour for each bearing reading from left to right.
    now the bearings that are in it all seam to be number 5's can anyone shed some light on this.
    this crank was a lower milage than the one in my bike and was going to put it in the other motor when i do it up but am worried about the numbers
    Gidday,
    Why not just mic the crank up & choose the appropriate shell thickness from there... ?

    Cheers
    To finish first - first you must finish... Oh b.t.w, which way doe's Turn 1 go & whats the lap record...

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