reparing impeller shaft
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reparing impeller shaft

  1. #1
    Senior Member glastornjet73's Avatar
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    Default reparing impeller shaft

    I know they make sleeves to repare the bushing side on the inpeller shafts but my machine shop can get bronze bushings and machine the inside daimeter to whatever i need. Would turning down the impeller shaft untill the wear is gone and polishing it with a crankshaft polisher work and then hone a bearing to fit be a proper fix Rather than installing a repare sleeve? If so how much clearance does it need? Also i am using a agressor bowl that is grease lube i was thinking about cutting a small grove in the bushing to alow grease to pass into the bushing more easily would that affect anything? Thanks in advance dj

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by glastornjet73 View Post
    I know they make sleeves to repare the bushing side on the inpeller shafts but my machine shop can get bronze bushings and machine the inside daimeter to whatever i need. Would turning down the impeller shaft untill the wear is gone and polishing it with a crankshaft polisher work and then hone a bearing to fit be a proper fix Rather than installing a repare sleeve? If so how much clearance does it need? Also i am using a agressor bowl that is grease lube i was thinking about cutting a small grove in the bushing to alow grease to pass into the bushing more easily would that affect anything? Thanks in advance dj
    DJ you can make/machine/shrink a repair sleeve on the shaft to repair which would be a better alternative than reducing the shaft and rebushing the bowl but you may find time and materials wize that when you do all that you could replace that shaft with a good used on or even new Tom

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    Senior Member Recycle Performance's Avatar
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    Re-hard chrome the tail stock on the shaft and bring it back to stock spec. That's the best way to do it. I've machined the shafts, made billet 316L stainless stock ends, pressed and welded them on, then final machine, but at the end of the day, it's still not as nice as a re-chromed shaft.
    Last edited by Recycle Performance; 02-17-2014 at 07:37 AM.
    Hi Performance Rigging, Pre-owned and New Parts, Jet Drive Specialists, Powerdcoating, Wire Looms, Gauges, you name it, we can do it.
    Located in Anaheim CA. 714-630-3905. Contact: Bob Jeanblanc, email: [email protected], Website: www.marineiw.com.


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    Senior Member glastornjet73's Avatar
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    Re-hard chrome? I thought the shafts were stainless.... Chrome rusts.... There is not much wear on my shaft at all thats the only reason i am considering this option about .002 wear its its just that wear no lack of lube galling or anything like that... I was just goin to make it a uniform size and cut a bushing to fit and basicly all it will cost me is the bushing... My machine shop guy rarely charges me for small stuff as we are pretty good friends

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    Default Hard chrome is forever...

    I'd lean towards the re chroming.... A simple OD grind a couple thou undersize on the last couple of inches, and then the chroming and a quick OD grind back to original size... Hard chroming lasts a long, long time. AND, when it comes to some sort of bushing repair method, remember the sandy environment it has to live in....
    Ray
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  8. #6
    Senior Member glastornjet73's Avatar
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    Ok well i guess my decision is made new bowl bushing and leaving the shaft alone untill i break the shaft then ill buy a new hardened shaft and stainless impeller and build a new pump mine is on borrowed time anyway with 600hp lol

  9. #7
    Senior Member Recycle Performance's Avatar
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    Yes, pump shafts are made from SS, generally 304, but 17-4 on the high strength versions. But all tail stocks are hard chromed and ground. Without the hard chrome, the shafts would wear to quickly. This is standard procedure with all the pump parts manufacturers.
    Hi Performance Rigging, Pre-owned and New Parts, Jet Drive Specialists, Powerdcoating, Wire Looms, Gauges, you name it, we can do it.
    Located in Anaheim CA. 714-630-3905. Contact: Bob Jeanblanc, email: [email protected], Website: www.marineiw.com.


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    Just my .02. The bushing is meant to be the part seeing the most wear. If you bring the shaft back to standard dimension, it means the part most likely to need replacing in the future is the bushing. If you keep it standard, it becomes pretty simple to buy one the next time you need to replace it.

  11. #9
    Senior Member tiki's Avatar
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    grind, chrome, grind, polish. easy deal.

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    Any recommendations on shops to send a shaft for re-chroming? As in: Somebody that does this pump shaft repair work all of the time.

    Thanks

  13. #11
    Senior Member Recycle Performance's Avatar
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    We do it all the time. $180.00
    Hi Performance Rigging, Pre-owned and New Parts, Jet Drive Specialists, Powerdcoating, Wire Looms, Gauges, you name it, we can do it.
    Located in Anaheim CA. 714-630-3905. Contact: Bob Jeanblanc, email: [email protected], Website: www.marineiw.com.


  14. #12
    Senior Member TNYoungblood's Avatar
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    Quote Originally Posted by mpkardell View Post
    Any recommendations on shops to send a shaft for re-chroming? As in: Somebody that does this pump shaft repair work all of the time.

    Thanks
    Johnny @ Big A Performance has fixed mine a few times. Does great work. 423-745-9667
    WFLC The REAL #321 Kentucky Drag Boat Association 2016 NJBA 10.0 High Points Champ

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    Excellent. I'll file this away for the next time I pull my pump apart.

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