adverse trimming affects??
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adverse trimming affects??

  1. #1
    Senior Member $uperJoe's Avatar
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    Default adverse trimming affects??

    threw my transom adapter on my 12jc and must have not use quite enough sealant. i know it should only need a gasket but the back of the transom is between better days as some of the paint has been chipped off and some of the gel showing is in need of repair. i had small leaks at the corners of the plate, but with speed the pressure must have compounded and it filled the boat with water in quite a hurry. stop and pump it out and all is fine, until going again. issue i am wondering about is since the square bottom of the adapter over hangs the bottom of the boats deep V about 3/16s inch on both sides about 7/8s inch long. could i trim a bit off without harming the piece? its far from the screws. i figure that since it hangs out the bottom it must be dragging and pressuring the water that was coming inside. i will properly seal the boat next time, and hope to be doing a setback this winter so i wont need it then.

    thanks
    Joe

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  3. #2
    Senior Member bp298's Avatar
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    yes.
    and if you want to see if/where the t/a is leaking, jack up the nose of the boat, put the plug in and add water to the bilge with a hose. do it when the outside of the boat is dry, and you can see any spots where you missed with the silicone...

  4. #3
    Senior Member $uperJoe's Avatar
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    thats a great idea. sometimes its the simple things i dont think of. the whole day i was mad that i made a foolish error as such, but also mad i was thinking i would have to drag it back to the lake test it. thanks bp

    joe

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    Default Hanging low

    The transom adapter should NOT hang below the hull. Under perfectly wrong conditions you may rip it totally off the hull and sink the boat... Something is very wrong....
    Ray
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  7. #5
    Senior Member $uperJoe's Avatar
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    thats kinda what i was thinking. thats why i wanted to cut it off

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    Senior Member jetboatperformance's Avatar
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    The , "water in the bilge" to check method is good however you want to keep the water level below the jet and crank seals ,you can also work around the sealed area with a compressed air blower (very low pressure) and soapy water spray outside (windex works too) like a tire check the leak will show as bubbles

  9. #7
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    Default Pressure...

    Quote Originally Posted by jetboatperformance View Post
    The , "water in the bilge" to check method is good however you want to keep the water level below the jet and crank seals ,you can also work around the sealed area with a compressed air blower (very low pressure) and soapy water spray outside (windex works too) like a tire check the leak will show as bubbles
    Tom don't you think maybe that adapter hanging below the bottom of the boat could create enough "pull" to separate it from the gasket and pour a stream into the bilge?.... And, as I said, if enough things were perfectly wrong, rip it off, or pull a section of transom out with it...I'm wondering if the keel is very sharp and the square corners of the bottom of the adapter are hanging over it? Either way it needs to be clear of the water flow under the boat. Either raise it up which would entail raising the bowl, or trim it off above flush.... DO NOT operate the boat until that is fixed unless everyone aboard are great swimmers....
    Ray
    LOUD BOATS SAVE LIVES

  10. #8
    Senior Member $uperJoe's Avatar
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    i will trim the plate before i adventure out to the lake again. since it is low would that mean that the bowl is low, thus the suction low and ultimately the intake is set wrong? what angle is the intake supposed to be in relation to the bottom of the boat? and where do you measure the base line of the intake to set it. i can measure these things and report back

    this really needs to be sorted out since it does pose the unsafe potential you mention

  11. #9
    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Moneypit View Post
    Tom don't you think maybe that adapter hanging below the bottom of the boat could create enough "pull" to separate it from the gasket and pour a stream into the bilge?.... And, as I said, if enough things were perfectly wrong, rip it off, or pull a section of transom out with it...I'm wondering if the keel is very sharp and the square corners of the bottom of the adapter are hanging over it? Either way it needs to be clear of the water flow under the boat. Either raise it up which would entail raising the bowl, or trim it off above flush.... DO NOT operate the boat until that is fixed unless everyone aboard are great swimmers....
    Ray
    Without regard Ray your are correct ,on some hulls and "intake sets" (Millers for one) the lower outer corners of the Transom adaptor end up that way and definatley need to be trimmed, ground ,shaped and blended to the bottom of the transom , yes that condition could just be the cause of water being forced in to the hull while under way definately not good ..

  12. #10
    " Live Laterally " Dominator's Avatar
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    Quote Originally Posted by bp298 View Post
    yes.
    and if you want to see if/where the t/a is leaking, jack up the nose of the boat, put the plug in and add water to the bilge with a hose. do it when the outside of the boat is dry, and you can see any spots where you missed with the silicone...
    Wow! What an amazing idea! lol
    " NO MOTOR NO BOATER "

    " I'd rather be riding in my boat thinking about God, than in church thinking about my boat ".


  13. #11
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    $uper Joe, listen to the KING aka bp298 or else you will completely fail in life! He has been on the rope more time then ANYONE! He has been to more venues then ANYONE, he has won more Championships then ANYONE! He is the KING! Listen to him! He is the baddest jet boat driver EVER!!!!!!!!
    " NO MOTOR NO BOATER "

    " I'd rather be riding in my boat thinking about God, than in church thinking about my boat ".


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