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  1. #1

    Join Date
    Aug 2008
    Location
    nverness, FL
    Posts
    95

    Anyone know about Impellers and pumps??

    I have a 650 sx 87 old school stand up. when on the trailer i hear a rattle so i looked at impeller and it seems to fine when running but when i shut it off it. shake's around quite a bit and rattles i pulled it all part and took the nose cone off and there is some water in there.. thinkinh thats not to good considering there is a o ring to seal it. anyway need to take impeller off and replace bearings.

    Question are the bearings pressed in????????

    And do i really need the tool to remove the impeller??


  2. #2
    inchadeboca's Avatar
    Join Date
    Oct 2007
    Location
    miami
    Posts
    555
    +1
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    yes they are pressed in there, but not by much. u can actually take the old ones off and install the new ones yourself. put the new bearings in the pump get a 2x4 (or small wood) to displace the pounding u are gonna do with a hammer or mallet. replace the o-ring with a new one. make sure there a no casting imperfactions around the cone/pump area were it seals onto the pump. apply some di-electric grease around the o-ring. YES u need an impeller tool, which is really only a splined bolt that goes into the front hub of the impeller. put the pump on a bench vice, by holding the rear of the shaft onto the vice so it does not spin when u un bolt it. for reinstallation screw in the impeller by hand clockwise rotation and use some anti seaze or BLUE loctite (NO RED LOCTITE !!!) on threads of the impeller/shaft and then torque to 85-90 ft lbs.

    if u need more help let me kow.

    the first pump i ever did took me like 2 hours, i took my time its not brain surgery. that was many pumps ago. Now i can swap pumps and/or impeller in about 30 mins ...no joke. u will be fine, just get a case of beer and take your time.

  3. #3

    Join Date
    Aug 2008
    Location
    nverness, FL
    Posts
    95
    Quote Originally Posted by inchadeboca View Post
    yes they are pressed in there, but not by much. u can actually take the old ones off and install the new ones yourself. put the new bearings in the pump get a 2x4 (or small wood) to displace the pounding u are gonna do with a hammer or mallet. replace the o-ring with a new one. make sure there a no casting imperfactions around the cone/pump area were it seals onto the pump. apply some di-electric grease around the o-ring. YES u need an impeller tool, which is really only a splined bolt that goes into the front hub of the impeller. put the pump on a bench vice, by holding the rear of the shaft onto the vice so it does not spin when u un bolt it. for reinstallation screw in the impeller by hand clockwise rotation and use some anti seaze or BLUE loctite (NO RED LOCTITE !!!) on threads of the impeller/shaft and then torque to 85-90 ft lbs.

    if u need more help let me kow.

    the first pump i ever did took me like 2 hours, i took my time its not brain surgery. that was many pumps ago. Now i can swap pumps and/or impeller in about 30 mins ...no joke. u will be fine, just get a case of beer and take your time.
    thanks for all your advice i will give it a try a friend has the tool and in waiting on the bearings and seals.. ill let you know how it goes

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