Super Jet So i didnt want to pay so i made..need advice bilge bracket

[Goober]

So i didnt want to spend 50+ on my bilge bracket so i made one. Now the way it sits now i have it at just under 1/2 inch off the bottom, i can probably get it a little closer. Just wondering how far off the hull should i have it sitting?

 

[Kny21]

just glue the er to you're pretty carbon with 5200 and save the effort.

 

[Goober]

lol meh i already made the bracket. might as well use it haha

 

[Mark44]

Yep I glue them down also, been stuck in there for 8 years now.

Mark44

 

[Goober]

i know most people glue them down lol. I was seeing if i "should" get them lower. anyways i just bent it more, got it to where its only about 1/8 an inch or so from the hull to the top of the plate. "should" be good.

 

[Mark44]

That should work fine, as low as possible.

Mark44

 

[Tyler Zane]

even when glued to the bottom it cant get all the water out. there is always an inch or so when i get home. your just going to have that much more with the space under the bracket and thickness of the bracket. high five for making your own bracket but just epoxy them down...

 

[JetManiac]

x2, As low as possible

 

[Berky]

That aluminum is going to sizzle against the carbon with a little salt water.

 

[Tyler Zane]

That aluminum is going to sizzle against the carbon with a little salt water.

please explain, just curious.

 

[Goober]

That aluminum is going to sizzle against the carbon with a little salt water.

Stainless not aluminum and atm i only ride flatwater,

 

[Goober]

The thickness of the bracket is about one tenth of an inch thick so yeah, got it fairly low, i would estimate less then 1/5 inch total to the top of the plate

 

[Tyler Zane]

Stainless not aluminum and atm i only ride flatwater,

something isnt adding up. tons of people use aluminum, stainless and carbon... wtf happen if they get together?

 

[Goober]

i dont have a clue, maybe he is thinking it will corrode it? but i only know of different metals causing corrosion.

 

[aussiemat]

this should clear it up for you


"Q: On your web site you have indicated that aluminum and carbon fibre react so as to cause cathodic corrosion. Is this also the case with steel or cromoly steel and carbon fibre?

A: Yes, it is a problem with steels as well as with aluminum alloys. The easy solution is to prevent contact. One way to do this is to include a single light ply of fiberglass in the layup as an electrical insulator between the metal and carbon. Trek did this with their bonded aluminum lug carbon tube bikes. Specialized did too, and Kestrel uses small patches of fiberglass in the fork and frame where metal parts attach. Aerospace structures do the same. See NASA's document TM-584C, CORROSION CONTROL AND TREATMENT MANUAL."

 

[Goober]

this should clear it up for you


"Q: On your web site you have indicated that aluminum and carbon fibre react so as to cause cathodic corrosion. Is this also the case with steel or cromoly steel and carbon fibre?

A: Yes, it is a problem with steels as well as with aluminum alloys. The easy solution is to prevent contact. One way to do this is to include a single light ply of fiberglass in the layup as an electrical insulator between the metal and carbon. Trek did this with their bonded aluminum lug carbon tube bikes. Specialized did too, and Kestrel uses small patches of fiberglass in the fork and frame where metal parts attach. Aerospace structures do the same. See NASA's document TM-584C, CORROSION CONTROL AND TREATMENT MANUAL."

cool where is this off of?

 

[Berky]

Stainless isn't a problem but aluminum is not high on the nobility chart and will give up electrons ( corrosion ) .

 

[Goober]

At least i went with stainless

 

[Tyler Zane]

interesting, i never knew that about carbon fiber.

 

[teddy]

this should clear it up for you


"Q: On your web site you have indicated that aluminum and carbon fibre react so as to cause cathodic corrosion. Is this also the case with steel or cromoly steel and carbon fibre?

A: Yes, it is a problem with steels as well as with aluminum alloys. The easy solution is to prevent contact. One way to do this is to include a single light ply of fiberglass in the layup as an electrical insulator between the metal and carbon. Trek did this with their bonded aluminum lug carbon tube bikes. Specialized did too, and Kestrel uses small patches of fiberglass in the fork and frame where metal parts attach. Aerospace structures do the same. See NASA's document TM-584C, CORROSION CONTROL AND TREATMENT MANUAL."

he's dead on. lets say if you took a carbon nut or washer and left it on a peice of stainless and it got wet the stainless would rust. even if you scratch the stainless with carbon it will rust. carbon and stainless dont mix well toghter.

i would just glue the pumps down.

edit:but then again i dont see how the carbonfiber would make it rust because the carbonfiber is laminated