Thrust Bearing
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Thrust Bearing

  1. #1
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    Default Thrust Bearing

    Anyone have trouble getting a thrust bearing out of a Berk housing? I tried soaking it pump and bearing in diesel for a few days and it still don't seem to want to budge. I don't want to take a chance of bending the shaft. What should I do beat the bearing apart and once the shaft is out try and pull the bearing or carefully cut it out. Or heat the housing? If I use a press what are the chances of bending the shaft? Manuel say hit it with a hammer. I have smacked it pretty hard and its not budging . Btw the shaft still spins.

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    Senior Member GA Jet's Avatar
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    they have to be pressed on and off. We bought a hydrolic press from habor freight for about $100. Jet Boat Performance website has great PDFs on how to rebuild a berk. If you dont have a press you can go to anyone who does axleshaft bearing can press it out for you. I recomend buyinh a press though, youll pay for it with two bearings

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    Senior Member HBInHeat's Avatar
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    i used a dead blow on the shaft to get mine out but i had to use a press to get the impeller off it was so frozen. Id stick it in a press and use a torch on the housing a bit to expand it a little. just don't press it to hard all at once and you'll be fine, use a block of wood between the shaft and press.

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    A deadblow to the ass end of the shaft......MAKE SURE THAT YOU HAVE TAKEN THE PACKING GLANDS OFF OF THE PUMP.....first.

    Good luck

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  8. #6
    Senior Member GA Jet's Avatar
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    I've always heard not to use a hammer but hey if it works the go for it. A BFH will always get something stuck unstuck, just not always in the best shape lol

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    Default Hard chrome!!!!

    The ends of the shaft are HARD CHROMED, DO NOT CHIP the hard chrome... The shaft MUST remain harder than the rear bushing or it WILL wear the shaft down beyond a usable size. The shaft can be re chromed back to size, but it aint cheap.....
    A SOFT faced dead blow hammer if you don't have access to a press...
    Ray
    LOUD BOATS SAVE LIVES

  10. #8
    Senior Member Fonz69's Avatar
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    Deadblow hammer or a BFH and a block of wood

    once the shaft and bearing are out of the pump use a press to remove the bearing

  11. #9
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    Guess I will get a bigger hammer. I took off the piece and two bolts the hold the packing’s in. do I need to dig out the packing’s? I have access to a press so if the BFH fails, i will see with it can do. I know that heating some of this stuff is a no no so I wanted to get an opinion if I am going to hurt anything. I will trying everything else first use heat as a last resort.

  12. #10
    TRG
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    I forget where I saw this, but a guy pulled the pump off the shelf layed a 3/4" plywood on the floor and pretty much slammed the pump to the floor to the floor, releasing the T bearing from the pump suction housing, I dont know if this was a typical way of doing it, but it released the bearing! lol
    I figure the plywood was to protect the end of the shaft..."HAHA, I said Shaft!"

  13. #11
    Senior Member sdpm's Avatar
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    Heat up the area with a torch and it will slide right out. It shouldn't be in there that tight to begin with. Are you trying to take it out the correct way (direction)?

  14. #12
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    do not like the hammer method, very easy to swell the end of the , much better to press the shaft out of the suction housing, heat the housing will help to release the bearing. if you feel compelled to use the bfh method mic the shaft end before insertion will be better on the tail bushings, polish it to size if needed. .02

  15. #13
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    piece of Oak and a 3lb hammer was all it needed. Thanks for the help.

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