SoCal Jet Boats

Tech Talk => Jet Pumps => Topic started by: Tomanyprojectz on February 18, 2013, 07:48:50 PM

Title: Sealing pump to transom
Post by: Tomanyprojectz on February 18, 2013, 07:48:50 PM
It's time to fix this. Here's what I want to do. I want to reseal  the pump to transom without moving my pump.  I figured i can chip away and sand the remaining silicone. remove 1 bolt at a time and silicone the head portion of the bolt and reinstall bolt into pump and torque the bolt. What silicone or sealant should I use that's not to crazy where I can remove the pump in the future without damaging hull? Should my pump be flush against the transom? Or is that gap normal?  After siliconing the bolt heads how do I apply the silicone to make a nice thick bead thAt doesn't look like a hack job on the pump?  I will silicone the intake portion of pump underneath as well. Any tips to do this will be greatly appreciated . Thanks
Title: Re: Sealing pump to transom
Post by: BIG JOHNSON on February 18, 2013, 07:55:03 PM
Masking tape and GE silicone II are your friends. I use a caulking gun to make a living..

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Title: Re: Sealing pump to transom
Post by: Tomanyprojectz on February 18, 2013, 10:03:02 PM
Thanks big Johnson.
Title: Re: Sealing pump to transom
Post by: lbhsbz on February 18, 2013, 11:04:44 PM
DO NOT USE 3M marine adhesive/sealer....the transom adapter will become one with your transom, and you'll have to use a proper jackhammer to get shot apart should the need ever arise. 

Use bathtub caulking....excessive amounts if need be...anything but the 3M stuff
Title: Re: Sealing pump to transom
Post by: Tomanyprojectz on February 19, 2013, 07:30:07 AM
Whooooa im glad i posted about this because i was goin to use the 3m stuff originally. Im goin to use the.stuff big mentioned.thanks
Title: Re: Sealing pump to transom
Post by: BIG JOHNSON on February 19, 2013, 08:37:17 AM
Whooooa im glad i posted about this because i was goin to use the 3m stuff originally. Im goin to use the.stuff big mentioned.thanks

You'll like it. Once it's cured it doesn't change. Its shiny and doesn't pick up dust. Take your time cleaning with alcohol or other solvent and mask wherever you don't want to smear it.

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Title: Re: Sealing pump to transom
Post by: SoCalPSD on February 19, 2013, 08:55:11 AM
The ge stuff is good just like bj said. When you go to buy it check the bottom of the tube, sometimes Hd and Lowes will get a old batch and the bottom plug will start pushing out and its no good. It will never cure.
Title: Re: Sealing pump to transom
Post by: Tomanyprojectz on February 19, 2013, 03:36:21 PM
Very good info.  :thumbup: thanks guys.
Title: Re: Sealing pump to transom
Post by: BIG JOHNSON on February 19, 2013, 07:37:06 PM
There's always a batch date. Last case I bought had 12/13
Title: Re: Sealing pump to transom
Post by: Tomanyprojectz on February 24, 2013, 06:47:40 PM
I just silicone over the old stuff.... The old stuff is insanely hard to remove and a pain. Just sanded up, cleaned, and applied thick noob beads of silicone. It will do for now.
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