Fiberglass scoop question

[Herr_Poopschitz]

I have an RO23 scoop I got a LONG time ago...I think it must be originally intended to be glassed directly into a hood. I would like to convert/make it bolt on.

Can I simply make some little angle brackets and use a strong adhesive to bond them to the scoop? Dad wants me to glass some in, but seems like a bit of work that may not be necessary.

Anyone have any pics of the bottom of a bolt on? Maybe some details of the flange that bolts to the hood and how they're secured to the scoop?

Not sure if this is best posted here or the bodywork area...figure most guys frequent most of the sub-forums anyway...

Once again, thanks for any help.

 

[snakeoil24]

Your going to need a flange, that has a trim piece that will bolt to the hood. I would lay a rubber or foam strip on the flange and bolt to hood without any adhesive. You can reinforce the Fiberglass with a trim edge if your willing to grind down the painted Gel coat and apply additional layers. I would make the flange from Stainless with enough holes punch for the glass to grab. Limit the hole size in the hood to 1/4 the hood scoop size and try to avoid at all cost cutting the reinforcement ribbing.

 

[Herr_Poopschitz]

Your going to need a flange, that has a trim piece that will bolt to the hood. I would lay a rubber or foam strip on the flange and bolt to hood without any adhesive. You can reinforce the Fiberglass with a trim edge if your willing to grind down the painted Gel coat and apply additional layers. I would make the flange from Stainless with enough holes punch for the glass to grab. Limit the hole size in the hood to 1/4 the hood scoop size and try to avoid at all cost cutting the reinforcement ribbing.

Hole is cut, reinforced the ribbing...


Just brainstorming a way to attach these two (hood is in epoxy now):


Yes, there is no return flange on the scoop to put fasteners into, that's what I'm trying to figure out how to do. Not sure what you mean by a 'trim edge'?

I'm also interested in how guys have the little reinforcement 'pillar' (for lack of a better term) at the front center of the scoops?

Needless to say, I know jack about 'glass...

 

[snakeoil24]

Fiber galls is easy to work with. Get three L brackets made. one for back to for sides. With Stainless Rivets attach the 3 l brackets to the inside of the scoop. with bottom of L facing down and in side. Then get a j Channel from Stainless and at the Middle of the opening of the scoop cut a notch so the j can be bent to match curve of Opening front of scoop. Then a 3 inch piece of stainless 1/4 Pipe with threads cut off on both ends. Have the top tig welded tot he underside of J channel which will look like bird wings now. Tig the pipe to bottom of the j.` Then a 2 inch fish plate on top of j. Punch holes in fish plate and along j channel and fit to under side of opening inside scoop. Now you have to grind the gell coat till ruff with 2 inch rolac. Now apply three coats of fiberglass with Fiber glass resin.. You will need to drill hole in top of fish plate before you install in hood and tig a 1/8 nut into plate so you can thread a bolt into center support from under hood.. Want to know more buzz me ill help

 

[Meep-Meep]

I put new stringers in my boat and learned a little about glass work. You would want some surface area to grab onto for one, so get some 16 grit on a disc sander and tear up the surface you want to bond to. Obviously don't destroy it, but you do want exposed fibers to grab on to. You can use metal reinforcement or even wood. There is no strength in resin so use the glass matting to build up and cloth as the rebar for strength. Alternating layers of cloth and matting is OK too. Have all your glass pieces pre cut and ready to go all laid out in order because when the resin is catalyzed you don't have a lot of time before it jells up. Squeeze out excess resin as best you can. Worst case you can grind out the area and start again.