Which loader to use
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Which loader to use

  1. #1
    Seriously off center slowride's Avatar
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    Default Which loader to use

    If there's a silver lining to my current pump ordeal, it's that the new pump came with a loader (rusted one), so I need to decide which one will go back in when I install the new pump (with the equivalent to a Berk AA). The old one (with white paint) appears to be a modified rock grate with ramps. Problem is, the leading edge of the ramps are over 1/2" below the keel and at the front of the intake. The new loader's ramps are about 1/4" below the keel and further back in the intake. I'm leaning toward the new one, but what do you all think? Oh, application is 21' Commander open bow, mild 460 BBF, Jacuzzi WJ






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  3. #2
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    I wouldn't consider either one unless I had them Mag'd and knew who built them. See thread below " Folks check your loaders".
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    Senior Member pilot940's Avatar
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    I haven't seen the rusted style one for a WJ before. Does anyone know which one he should use after he gets them "mag'd"? I would be interested in which as well.
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    Senior Member bp298's Avatar
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    the white/rust colored one is what was referred to as a "speed grate" 30-40 years ago. i still have a couple lying around somewhere just for grins. i think rex still sells them. except, every other one i've seen has a mounting pad with 4 mounting holes.
    the total rust colored loader is also something out of the dark ages, especially with that 2 hole mounting pad. nice for show n tell, not so good in a boat that might go somewhere. it might be interesting to bead blast the loader, have info mp check the thing just to see if it's really held up over the years. still wouldn't use it though, especially with that mounting pad.
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    Senior Member Brendellajet's Avatar
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    Jacuzzi pumps only had two bolts. When I had Jack work on my WJ, he made a nice stainless loader for it and added a 3rd bolt hole.
    "He is a lover, not a fighter. But he's also a fighter, so dont get any ideas."
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    Senior Member jetboatperformance's Avatar
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    Mike pretty much everyone has stopped selling them over the past mainly due to how they mount and anchor (two bolts side by side) also the majority I've seen had very little of the length ways runners actually atached to the mounting plate to begin with ,the original Jacuzzi OEM grate has a "plug" cast in the the rear of the tines which nest's into the "shoe" area of the WJ intake and helps hold and secure the OE intake grate , this plug also makes up the "shoe" for the OE WJ intake and makes for a clean entry into the rear of the intake casting , when these aftermarket loaders are used the don't have that shoe feature and not having it ends up makeing the intake significantly larger as well as eliminating the shoe effect or at least changing the dynamincs of same I'll post a couple pics later Tom
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  9. #7
    Seriously off center slowride's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    Mike pretty much everyone has stopped selling them over the past mainly due to how they mount and anchor (two bolts side by side) also the majority I've seen had very little of the length ways runners actually atached to the mounting plate to begin with ,the original Jacuzzi OEM grate has a "plug" cast in the the rear of the tines which nest's into the "shoe" area of the WJ intake and helps hold and secure the OE intake grate , this plug also makes up the "shoe" for the OE WJ intake and makes for a clean entry into the rear of the intake casting , when these aftermarket loaders are used the don't have that shoe feature and not having it ends up makeing the intake significantly larger as well as eliminating the shoe effect or at least changing the dynamincs of same I'll post a couple pics later Tom
    Do you have one those animals around? Check your emails... I sent specs and a pic of the yoke.





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    Senior Member jetboatperformance's Avatar
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    Note the curved "puck" at the rear of the WJ OEM loader and intake , non existant in the aftermarket devices


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  11. #9
    Seriously off center slowride's Avatar
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    Quote Originally Posted by jetboatperformance View Post
    Note the curved "puck" at the rear of the WJ OEM loader and intake , non existant in the aftermarket devices


    I may be misunderstanding what that loader actually does, but it doesn't look like it does much more than a rock grate. The "puck" would sit on the bottom of the intake and direct some flow up, but without any ramps to redirect flow, doesn't actually load the impeller the way a Berk loader would. How far into the intake does that puck sit? Does the Jacuzzi not need the impeller loaded the way a Berk does, or will the Jacuzzi A stay loaded better at high speed?





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  12. #10
    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by slowride View Post
    I may be misunderstanding what that loader actually does, but it doesn't look like it does much more than a rock grate. The "puck" would sit on the bottom of the intake and direct some flow up, but without any ramps to redirect flow, doesn't actually load the impeller the way a Berk loader would. How far into the intake does that puck sit? Does the Jacuzzi not need the impeller loaded the way a Berk does, or will the Jacuzzi A stay loaded better at high speed?
    Mike that is an OEM "rock grate" and the picture is only offered to exhibit the way the original grate attached versus the way the aftermarket steel loaders do. The WJ could definitely benefit from a ramp type loader if someone was to produce one that worked and was safe. Its that there's little to nothing offered for them currently nor is there an apparent great demand and what is available still doesn't address that missing semicircle piece that comprised the original mounting system as well as completing the original intake opening and dimensions. Tom
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  13. #11
    Seriously off center slowride's Avatar
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    When I pulled the loader, I thought it odd there were only 2 mounting bolts, so I looked at it carefully before removing it. The rear of the loader sits quite nicely on the housing. I bolted the rusty loader up and it was supported by the housing at 2 points. The white one was supported at 3 points. I would think that at speed, the water pressure would push down on the ramps making a firm support for the rear of the loader (though not mechanically secured).





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