Winter project. Rebuild a jet...
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Winter project. Rebuild a jet...

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    Senior Member Delemorte's Avatar
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    Default Winter project. Rebuild a jet...

    Well winter is almost here and the boat is all set up for the cold weather.. Now its time for the winter projects to begin.. Just reached out to Tom for a rebuild kit for my Berk.. I just need some words of wisdom from the experts up in here..


    I have the manual, Berkley has a set of instructional video's, as usual Tom is always very helpful and i have a patient wife...


    Questions?
    What are some pitfalls i should look out for?
    What kind of special tools are going to be needed and what did you use instead (I.E. impeller puller etc).
    I have until march to finish all of my projects but how many man hours am i looking at for the pump?
    Ive rebuilt a SBC, SBF and own a TR6, i think my skill level should be OK but all advice is welcome and needed. Will be my first dissasembley of a jet drive.


    BTW, sorry i have not been around.. Been busy with Honey Do lists during the fall.
    Last edited by Delemorte; 11-28-2008 at 10:13 PM.
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Senior Member gregb's Avatar
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    I invested in the impeller puller, it's pricey but it was definitely worth it. 4-5 hours for the pump, probably take just as much time taking it out of the boat as it will rebuilding it. Getting the old wear ring out can be a PITA, but once it's apart there isn't much to them, they are simple and that's what I like about them. You'll need a 1 13/16 socket for the nut on the impeller, I used to use a pipe wrench but have a deep socket for that also. Probably don't need the video, any questions just post or give Tom a call.

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    Senior Member Delemorte's Avatar
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    Quote Originally Posted by gregb View Post
    I invested in the impeller puller, it's pricey but it was definitely worth it. 4-5 hours for the pump, probably take just as much time taking it out of the boat as it will rebuilding it. Getting the old wear ring out can be a PITA, but once it's apart there isn't much to them, they are simple and that's what I like about them. You'll need a 1 13/16 socket for the nut on the impeller, I used to use a pipe wrench but have a deep socket for that also. Probably don't need the video, any questions just post or give Tom a call.


    Where did you get your puller and what did you pay for it?

    I was reading the berk manual and it suggested just hitting that wear ring with a torch to make it expand out of place.. Now remember this manual aint exactly new so take that as you will.
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    21 Daytona Outlaw's Avatar
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    Quote Originally Posted by Delemorte View Post
    Where did you get your puller and what did you pay for it?

    I was reading the berk manual and it suggested just hitting that wear ring with a torch to make it expand out of place.. Now remember this manual aint exactly new so take that as you will.
    use a propane torch/burner for this and don't get it so hot it starts to melt, just get it hot and it will pull right out.
    American Turbine web site has a PDF manual that is very detailed.

    it a piece of cake if your mechanically inclined at all.
    I guess I have been lucky, so far I havent had to use a puller on one yet
    #55

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    Senior Member GT Jets's Avatar
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    If you've never had one apart they can be challenging to get apart if it has not been apart in a long time, the allen bolts in the front bearing thrust can be stuck (aluminum and steel hate each other) be patient and soak everything down with some good penetrant (not WD40).

    The bowl bolts should be a piece of cheese because of their size and the fact that they are 304 SS, the rope seal (packing) is frustrating, takes a beer or two sometimes...


    The impeller will be stuck, probably stuck hard, again with the penetrant and be patient, as for the wear ring, a piece of flat sheet metal to protect the pump body and the little Wonder Bar, I normally get them out in about five to ten minutes....

    As for pitfalls, if its running god right now it should be OK, check the shaft at the ends and for striaght, look for anything obvious, the bowl bearings are a lot easier than they look too, I don't know your application but may consider having the shaft and impeller balanced together if looking at high HP (400+).

    Follow the clearancing guidlines, this is where most mistakes are made, the rest is just nuts and bolts, when it goes back together use some thread sealer on all bolts, I don't use never seize, I use Loctite blue, but use your judgement...

    Good luck......

    BTW Tommy is the bomb, he will be there for you when things get dicey...

    GT
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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    Senior Member gregb's Avatar
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    I got it from Rex Marine, don't remember the cost it was a couple years back, think it's about $125 these days, sometimes you can just pop the impeller off, mainly if the build is fresh, but when it's on tight that puller is worth every cent. The torch thing works, just go slow, what it's really doing is melting the plastic liner that the wear ring sits in, I actually got mine out that way, melted it until I could see it move then pried it out and it came out pretty easy. Clean everything really well, put the new liner in and stick the wear ring in the freezer for a while and it will go in farily easy, or you could go with an Ultimate wear ring which is all plastic/urethane material and that just pops in. (You'll get a lot of different opinions on that one, I have one in my jet and I like it). If your not replacing the impeller I wouldn't replace the wear ring if all the clearances are good. If the front bearing is worn sometimes it takes a press to get it off, (any competent machine shop could r&r the bearing in under 5 minutes) and if you are replacing the bushings in the bowl you will need the appropriately sized driver.

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    Senior Member Delemorte's Avatar
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    Quote Originally Posted by GT Jets View Post
    As for pitfalls, if its running god right now it should be OK,.... I don't know your application but may consider having


    Its actually running great right now but the Split nyliner bushing are working their way out of the tiller shaft. I dont know when the bowl was last taken down so Tom suggested it might be a good time to go ahead and get it all apart and check for any issues and get all those seals and bearings replaced...

    400+ hp made me giggle.. Its a 350 SBC. I would be thrilled to see 325+ much less 400... but thanks for all the advice.. Ill keep this thread updated with progress so keep throwing those ideas my way... Thanks!!
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Senior Member GT Jets's Avatar
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    I've got a worked SBC going into an I/O that I just got built and it spun the dyno to 335 HP with very little done to it...does it under 5000 rpm too. Gonna put it in a 20.5 Elite Carrera, should be fun. I totally agree on pulling it down and freshen it up, it's easier to do in the winter rather than while everyone's out using theirs....

    GT
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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    Senior Member GAWnCA's Avatar
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    Quote Originally Posted by GT Jets View Post
    I've got a worked SBC going into an I/O that I just got built and it spun the dyno to 335 HP with very little done to it...does it under 5000 rpm too. Gonna put it in a 20.5 Elite Carrera, should be fun. I totally agree on pulling it down and freshen it up, it's easier to do in the winter rather than while everyone's out using theirs....

    GT
    Have you noticed how many people wait until spring and summer to start working on their boats while everyone else is out having fun?
    Wags

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    Senior Member GAWnCA's Avatar
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    Delemorte, where are you located?
    Wags

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    Senior Member GT Jets's Avatar
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    Quote Originally Posted by GAWnCA View Post
    Have you noticed how many people wait until spring and summer to start working on their boats while everyone else is out having fun?
    Yes I have, but normally it's me

    What's up GAWnCA?

    GT
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

  14. #12
    Senior Member GAWnCA's Avatar
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    Quote Originally Posted by GT Jets View Post
    Yes I have, but normally it's me

    What's up GAWnCA?

    GT
    Well, I'm building a 350 SBC over the winter for a 16' jet boat I picked up. Put the Miller away for the winter since what I need to do on it requires warmer weather, glass and paint. I hope to slip this 16 footer together for playing with while the Miller gets the works and then do the 16'. I'm still trying to figure out what hull it is, no HIN that I can find.

    How about you?
    Wags

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    Senior Member Delemorte's Avatar
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    Quote Originally Posted by GAWnCA View Post
    Delemorte, where are you located?

    Charlotte NC. Warp Speed lives by here. I know he did a bunch to his boat ill see if he has a puller already. I dont mind buying one but for the minimal amount ill use it, it just seems pricey.
    Last edited by Delemorte; 11-29-2008 at 09:02 AM.
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

  16. #14
    Senior Member GAWnCA's Avatar
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    Heck, you may not need one. By the time I got the nut off, I guess the impact wrench had hammered anough that the impellor alomst fell off into my hand.
    Wags

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