Jacuzzi rebuild
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Jacuzzi rebuild

  1. #1
    What the Hell is That? 72Hondo's Avatar
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    Default Jacuzzi rebuild

    Instead of thread jacking I'm just going to make my own. Boat is a 72 Hondo, Pump is a Jacuzzi WJ. Dad owned it before me. Internals of the pump have not been even looked at since the 80's. It does have a Place diverter on it though.

    My questions are; How complicated is it to tear it all down and rebuild it? Not with an Energizer kit just a plan ol rebuild kit. Looking at the Exploded view of the WJ, it does look a lil overwhelming but most people here say "Super simple Pump." I have been in contact with Tom at JBP. While I was poking around in another forum I read its a very bad idea to run the boat with the pump dry, like on the Ramp, tuning, etc. My dad used to do it constantly, in the garage to work on the motor on the ramp to clean out the headers etc. I think the pump is screaming for a rebuild!

    Are any special tools required? Gear puller etc? I'm not looking to go 100, or any time soon and not with my inexperience. 60-70 is fine for the time being.

    From what I am told the whole pump has to come off the boat? Transom cover and all?

    I'm looking to take the boat out twice in AUG.

    TOM, depending on what I hear from this thread, I will call you on Monday either about a wear ring or a whole rebuild kit.

    Just a rear end pic for kicks!


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  3. #2
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    It's been like 12 years since I had one apart, but I remember it was very simple. You're only removing the part that sticks out the back of the boat. As I recall, You remove the steering nozzle, then the transom adapter. Then the bowl bolts come out from inside the boat. After you pull the bowl, you can remove the nut and pull off the impeller. The wear ring is held in by 4 little screws. Remove them and the wear ring can be taken out. To put it back together, reverse the procedure. No special tools. The explode view does look overwhelming, but you're not takling every last part apart. It's not good to run the pump dry because it burns on the wear ring and it loses some of it's seal. Which means less thrust. If you back the boat into the water so the pump is under water you can run it for tuning or what ever.

    Whats that got in it for an engine?

    Tim

  4. #3
    What the Hell is That? 72Hondo's Avatar
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    The Transom adapter was what I was afraid of, god knows the amount of silicone behind there. I saw the bolts you were talking about and man are they back in there.

    Pics of the pump and how far back it is,








    How do you guys get Trq wrenches up inside there? Or is it just as tight as you can go?

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  6. #4
    Senior Member H20MOFO's Avatar
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    Tom is the man IMHO no matter what route you decide to go. Is it just me or does that diverter/nozzle look adjusted wayyyy down, what's it look like all the way up?
    Another Hot Boat refugee

  7. #5
    What the Hell is That? 72Hondo's Avatar
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    I thought it was pointing a lil more downward than most boats.

    Full down


    Full up


  8. #6
    Senior Member jetboatperformance's Avatar
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    No specials tools or trick wrenches involved ! Step one : remove cables,remove all transom plate to boat screws, carefully "slit" all surrounding silicone (bowl an T/A) and gently pry the transom plate off the boat (not always fun or pretty) , set it aside , then unbolt the suction housing from the intake ,unless some "Nimrod" glued the pump down the jet will practically fall out on your feet (about 70 lbs), please feel free to call if you need help the rest is "cake" Tom

    Thanks Kreg!

  9. #7
    blown mopar moparjet's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    No specials tools or trick wrenches involved ! Step one : remove cables,remove all transom plate to boat screws, carefully "slit" all surrounding silicone (bowl an T/A) and gently pry the transom plate off the boat (not always fun or pretty) , set it aside , then unbolt the suction housing from the intake ,unless some "Nimrod" glued the pump down the jet will practically fall out on your feet (about 70 lbs), please feel free to call if you need help the rest is "cake" Tom

    Thanks Kreg!
    like tom says.... take the whole pump out and it will be easier... the only thing i ran in to was getting the impeller off the shaft. i used a press and it popped right off... and the wear ring screws are very small and didnt want to come out.. but with a little tlc i got them out.. i think even if you broke them of you could drill 4 more holes and rotate the ring... the better part is no set up for impeller to wear ring.. assemble and go
    throw it in reverse

  10. #8
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    Yup, looks like mine. Just stand at the back of the boat and bend over on your head. Mine getting the transom plate was a job because some one put it on BEFORE the silicon set. The bowl is o-ringed so no sealer needed.

    That diverter seems to have a lot of travel. Ought to throw one heck of a rooster.

    Tim

  11. #9
    Senior Member jetboatperformance's Avatar
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    Lots of cool internal and external mods available to these jets to if your get to that point !


  12. #10
    What the Hell is That? 72Hondo's Avatar
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    Yea 1200 for an Energizer kit, I'm sure it's worth it but thats a big dent in the wallet.

    Ill gve ya a call tomorrow to order the re-build kit, I figure as long as I have the pump off lets do the whole thing. and who knows I may end up needing an Impeller too.

  13. #11
    Just Me snoc653's Avatar
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    Not to thread jack, but if one had an alluminum A impeller for a Jacuzzi WJ and wanted it race prepped and the bowl and intake flowed for it, what all would need to be shipped? Or is this something that would need to be on the boat to make it work right?

  14. #12
    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Btnhtillidie View Post
    Yea 1200 for an Energizer kit, I'm sure it's worth it but thats a big dent in the wallet.

    Ill gve ya a call tomorrow to order the re-build kit, I figure as long as I have the pump off lets do the whole thing. and who knows I may end up needing an Impeller too.

    That Miller runs hard (no energizer kit) snoc653, check your pms



  15. #13

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    I seen this posted back in 2003 on HB a little cheaper way to go on rebuilding a 12WJ prices may have changed a little since then, but still reasonable. Motion industries I think has locations all over the US, so google them if needed. List below includes prices at the time (2003), part numbers and quanity needed for the rebuild.

    posted May 20, 2003 12:50 AM
    --------------------------------------------------------------------------------
    I did a complete rebuild on a Jacuzzi 12WJ pump for around $80.00 including the bearing. I went to Motion Industries in Garland, Texas (972) 278-0220. Here is what to ask for and what I paid for them.

    271 Buna o-pack (1 pack) (00192 S 21803) $1.75
    232 Buna o-pack (5 pack) (00192 S 21764) $1.75
    258 Buna o-pack (1 pack) (00192 S 21790) $1.75
    256 Buna o-pack (1 pack) (00192 S 21788) $1.75
    032 Buna o-pack (1 pack) (00192 S 20631) $1.50
    450 Buna o-pack (1 pack) (00192 S 21908) $3.13
    9080 Lup seal 0137 oil seal (00480 X 16110) (1) $7.47
    5307 K Bearing, Double Row Ball Bearing (00300 B 03203) (1) $38.24
    10054 Lup Seal 0168 Oil Seal (00480 X 23480) (2) $16.78

    You will have some packing’s left over; they only sell some of them in a 5 pack (what’s a few extra cents anyways). I did this rebuild last summer so the prices may have changed a little since then. Good luck and see you on the water.
    --------------------------------------------------------------------------------
    Posts: 1 | Registered: May 2003 | IP: Logged |
    Last edited by dgie; 12-08-2008 at 08:16 PM.

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