King bearings
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King bearings

  1. #1
    Senior Member Racer J's Avatar
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    Default King bearings

    Anyone having trouble with king bearings? Mocking up a new engine and found this. I don't think I'll try another set!! Looks like I'm going back to Clevite.
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    Senior Member wagspe208's Avatar
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    Not to be stupid... but I assume the shell back and cap were totally clean?
    New bearing?
    Odd.
    Wags

    I am a big clevite h series fan... or/ and coated.
    Wags

  4. #3
    Senior Member Racer J's Avatar
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    New bearing.

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  6. #4
    gn7
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    Senior Member gn7's Avatar
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    Seen the same thing before with the old Moraine bearings. Either some contamination between the layers when it was maunfactured, or stored were moisture could penetrate the layers. Not unlike peeling chrome. sometimes it will just look like a blister on the bearing, but if you run it, it becomes seperated like that. Your just lucky you saw it before you ran it.

    Bet you look a bearing a little differently when you remove them from the box now
    Everything needs to be inspected and nothing can be taken for granded.

    Curious, is that a KING HP bi metal bearing or their XP tri metal bearing? The tri metal are not as suseptible to the seperation as the bi metal. It has something to do with the silicon in the aluminum alloy they use.The bi metal uses a high silicon aluminum alloy similar to a hyper piston, for the bearing material on a steel backing. Wears like iron, but the bi metal is not up to high sustained loads. Its decent drag race bearing but its not the best marine/endurance bearing. The bi metal is also not recommended for use on forged cranks either.
    Their tri metal is nothing more than a Clevite/Speedpro/TRW "H" bearing.

    I have had excellent luck with ACL bearings made on the Clevite "H" blueprint. By far the most consistent bearing out of the box I have ever used. I was turned on to the by Calico Coatings. It is their bearing of choice to staock as pre coated bearings. Its also the bearing Callies sells as their coated bearing.



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    Last edited by gn7; 12-29-2012 at 11:13 PM.

  7. #5
    Senior Member Racer J's Avatar
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    They are the HP bearings. The XP have a dark coating. I've used the HP for years in the drag car with no issues, I'll look into the ACL. Thanks

  8. #6
    Senior Member wizbang's Avatar
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    We had the same thing with the XP Kings in two different ( but both brothers ) engines. They fell apart on the dyno.

    Took them apart, cleaned them up, went back to Clevite, no problems after two years!

    These had Brad Penn oil in them, maybe King doesn't like Brad

  9. #7
    Distinguished Member David 519's Avatar
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    Quote Originally Posted by gn7 View Post
    ....Bet you look a bearing a little differently when you remove them from the box now
    Everything needs to be inspected and nothing can be taken for granded......
    This right here... take nothing for granted.... A custom set of GRP rods had to go back to them TWICE to get them to match the order sheet and so it goes. As far as bearings, pretty tough to beat the Clevite for most performance applications. At least in my experience, never seen a problem that was the bearing's fault.
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

  10. #8
    Senior Member tigertooth's Avatar
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    Quote Originally Posted by gn7 View Post
    Seen the same thing before with the old Moraine bearings. Either some contamination between the layers when it was maunfactured, or stored were moisture could penetrate the layers. Not unlike peeling chrome. sometimes it will just look like a blister on the bearing, but if you run it, it becomes seperated like that. Your just lucky you saw it before you ran it.

    Bet you look a bearing a little differently when you remove them from the box now
    Everything needs to be inspected and nothing can be taken for granded.

    Curious, is that a KING HP bi metal bearing or their XP tri metal bearing? The tri metal are not as suseptible to the seperation as the bi metal. It has something to do with the silicon in the aluminum alloy they use.The bi metal uses a high silicon aluminum alloy similar to a hyper piston, for the bearing material on a steel backing. Wears like iron, but the bi metal is not up to high sustained loads. Its decent drag race bearing but its not the best marine/endurance bearing. The bi metal is also not recommended for use on forged cranks either.
    Their tri metal is nothing more than a Clevite/Speedpro/TRW "H" bearing.

    I have had excellent luck with ACL bearings made on the Clevite "H" blueprint. By far the most consistent bearing out of the box I have ever used. I was turned on to the by Calico Coatings. It is their bearing of choice to staock as pre coated bearings. Its also the bearing Callies sells as their coated bearing.
    Got a set of King bearings in a motor purchase a few years ago. The main clearence with them seemed a little large so bought a set of A C Ls and clearence problem was solved. They seem very consistent in their thickness. I sometimes have to mix and match Clevites but have not had that problem with the ACLs. The Kings went in the trash Saturday.

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