Hand Hole Cover
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Hand Hole Cover

  1. #1
    Member clements_40's Avatar
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    Default Hand Hole Cover

    look at this cover on my boat, this is hand made by previous owner, it appears to be just a flat plate, well i was browsing berkleys website, its not supposed to be just a cover, if it were it would trap air and cavitate right? well i dont have cavatation issues,


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    TRG
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    looks that way, in the past some hand hole covers were breaking at the mounting ears, and some people were doing this to help prevent it happening, I milled the top of my existing cover flat, and added a plate to the unit, does it help??? ya sure! lol who knows, all I know is, i dont worry about it like I did in the past when it wasn't there!

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    Member clements_40's Avatar
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    what i was talking about was the insert that goes in the hand hole cover its contoured the same as the inside of the pump right? ive never been inside this pump, any pump for that matter, i was looking at the schematics on berkleys site and it looked like id see another plate inbetween the plate on top and the pump, if you look close, all thats there is the gasket, if thats the case theres an air pocket in top,

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    Senior Member Fonz69's Avatar
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    Right but what the other guy is saying is you take your stock cover that goes down inside the suction and mill the top flat to put a plate over it.

    Pull your cover or look from under the boat and see it thats what has been done or someone just lost it and made a flat plate cover

    If it is just a cover you will need a new one that goes all the way down inside the suction so there is no disturbance of the water in the suction.

    HI Tech Performance sells one by PPP that will take care of that problem and will be better then the stock one

    417-858-8616

    http://www.hi-techperformance.com/

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    Member clements_40's Avatar
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    i just crawled under it, it didnt have one, so now tell me why im not haveing any cavitation problems? and im running 4000rpm and 60mph gps speed, im pretty pumped now, i talked to hi-tech he talked like it would be a big improvment, so maybe i can get 70mph out of it!! it just baffles me that it doesnt cavitate or show any signs of having air trapped, ?????

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    Senior Member Boat 405's Avatar
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    Once it fills with water it's not too bad, but I would find a hand hole cover to replace it. Alot is going on inside the suction housing so it probably isn't going to trap air for very long. unlikely you'll pick up 10mph. Maybe a couple. Just depends on the type of boat, how much hp, condition of pump.......

    Put it this way, it won't hurt to get the right part in there.

    I'm assuming it's not a big hp boat shooting for the moon, so just replace the hand hole cover with the stock berkeley piece and you'll be fine.
    Last edited by Boat 405; 05-13-2010 at 11:59 AM.
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  9. #7
    Member clements_40's Avatar
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    when you say high HP boat, it really depends on who your talking to, LOL this is my step up from a 75hp johnson, but i figured for 30 extra bucks ima get the good one,, and while im doing it im getting a loader grate, just for s*its and giggles, and maybe some day ill have me one of those hot rods, but for now im just trying to get all i can with the setup i have, u know what i mean

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    Senior Member Boat 405's Avatar
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    Quote Originally Posted by clements_40 View Post
    when you say high HP boat, it really depends on who your talking to, LOL this is my step up from a 75hp johnson, but i figured for 30 extra bucks ima get the good one,, and while im doing it im getting a loader grate, just for s*its and giggles, and maybe some day ill have me one of those hot rods, but for now im just trying to get all i can with the setup i have, u know what i mean
    330hp would be considered stock. High hp like I'm talking about would be 600 and up.

    Don't worry too much, being able to get out and enjoy the water is the biggest deal. Have fun be safe.
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    Senior Member Boat 405's Avatar
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    Lots of pump work would be the first place to start in my opinion, good clean impeller, loader grate, droop snoot, place diverter. Shoe and ride plate if you are set up for it. Inducer further down the line. I would get all those items in order before you add any HP. You'd be surprised how much you can gain out of an efficient pump setup.
    Boat 405.

  12. #10
    Member clements_40's Avatar
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    already have brand new pump, 12jc, place diverter, shoe and ride plate, only has one season on the pump, looks like grate is next

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    Member clements_40's Avatar
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    Quote Originally Posted by widowmaker View Post
    330hp would be considered stock. High hp like I'm talking about would be 600 and up.

    Don't worry too much, being able to get out and enjoy the water is the biggest deal. Have fun be safe.
    oh i understand i was makin a joke, im prolly in the 400 to 450hp range, if i was to guess,

  14. #12
    Glendale Arizona Squirtcha?'s Avatar
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    Quote Originally Posted by clements_40 View Post
    oh i understand i was makin a joke, im prolly in the 400 to 450hp range, if i was to guess,

    From your other post.

    Quote Originally Posted by clements_40 View Post
    my boat ran 60mph at like 4000rpm, berore the rideplate, i gained about 100rpm
    I think with those numbers you're closer to 300 hp.

  15. #13
    "Mad" Member Jet Mad's Avatar
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    Quote Originally Posted by clements_40 View Post
    oh i understand i was makin a joke, im prolly in the 400 to 450hp range, if i was to guess,
    What type of engine are you running?

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    Senior Member Uminchu's Avatar
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    Quote Originally Posted by widowmaker View Post
    Lots of pump work would be the first place to start in my opinion, good clean impeller, loader grate, droop snoot, place diverter. Shoe and ride plate if you are set up for it. Inducer further down the line. I would get all those items in order before you add any HP. You'd be surprised how much you can gain out of an efficient pump setup.
    Great point. Had I started with the pump, I could have had it out, new shoe, impeller, etc while the engine was getting rebuilt.

    Now I have a 600 HP motor in front a stock pump that I need to pull again to make me happy with the pump.

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