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  1. #1
    Water4fire's Avatar
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    Oversized bearings for crank?

    Guys If I have the crank polished were would I get the oversized bearings for it?

    Thanks


  2. #2
    David 1 FAST VE's Avatar
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    You can have it polished without getting out of spec as long as you are not close to being out already.

    I have done 2 that worked perfectly.

  3. #3
    Water4fire's Avatar
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    Good to here! I am gonna take it in and see what they will charge.
    The crank looks good and is not bad, but I just want it perfect and don't want to take any chances.

    This motor didn't do fine with just a hone as it was not low hours as stated when I bought it.

    .

  4. #4
    David 1 FAST VE's Avatar
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    Jawz suggested me doing the polish so I had it done.
    The place here (Lunati) reaffirmed what Jeff said that the stock crank looks terrible when magnified, he showed me a before and after through some sort of hand held magnifier and you could definitely tell a difference.
    He said when polished the oil does not have to fill the "holes" in the crank that it slides between the bearing and journal easier giving better oiling protection.

  5. #5
    SeaGoat's Avatar
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    Quote Originally Posted by 1 FAST VE View Post
    Jawz suggested me doing the polish so I had it done.
    The place here (Lunati) reaffirmed what Jeff said that the stock crank looks terrible when magnified, he showed me a before and after through some sort of hand held magnifier and you could definitely tell a difference.
    He said when polished the oil does not have to fill the "holes" in the crank that it slides between the bearing and journal easier giving better oiling protection.
    Is this the Lunati of Lunati Cams? I would think they know they're chit. Polishing the crank and cam just makes sense when rebuilding any engine.

  6. #6
    King_Of_Fun's Avatar
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    I used to use crocus cloth on my '66 Mustang crank, but that was back in '68... Ron

  7. #7
    David 1 FAST VE's Avatar
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    Quote Originally Posted by SeaGoat View Post
    Is this the Lunati of Lunati Cams? I would think they know they're chit. Polishing the crank and cam just makes sense when rebuilding any engine.
    Yes it is them.
    They went through some sort of business restructuring so I don't know if they are still truly Lunati but it is all the same guys and they are still in the same building.

    They showed me the stock run out before they repaired it and it was really close but not perfect. Once they finished if defiantly ran truer than it had.

    I had never seen so many cranks in my life.

  8. #8
    Kiwi spanner handler
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    back to original question I have a crank with damaged big end and also wondered if there are oversized bearings available as they are'nt through seadoo

  9. #9

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    Quote Originally Posted by 1 FAST VE View Post
    Jawz suggested me doing the polish so I had it done.
    The place here (Lunati) reaffirmed what Jeff said that the stock crank looks terrible when magnified, he showed me a before and after through some sort of hand held magnifier and you could definitely tell a difference.
    He said when polished the oil does not have to fill the "holes" in the crank that it slides between the bearing and journal easier giving better oiling protection.

    Micro-polishing! It's worth the $

  10. #10

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    Quote Originally Posted by jasonze View Post
    back to original question I have a crank with damaged big end and also wondered if there are oversized bearings available as they are'nt through seadoo
    If they do offer undersized bearings, you could have the crank offset ground for a little more stroke. You also have to deck the piston tops if the P/H clearance gets too small. Hmmm...

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