1986 Brougham Bridger Yukon Delta Fishing boat renovation

[Jeff Fro]

We checked the Alpha One that I have and it fits just fine. Seems that the upper left corner may be trimmed a bit short, but we'll see how the transom goes in. May have to add a little fill in for support.

Whew, what a weekend. I started grinding on the transom and finished on the aft center floor support. Did both side floor supports and removed the hairy mess that was between the fuel tanks and the hull. What a mess. power washed the hull twice and the driveway twice. Got the transom built, trimmed, located, and started building the clamps. Looks like I'll be copying Nurseman's transom method and a mix of WOG's and Friscoboater's clamps.

Question...when the time comes to PB the transom in, should I open all of the small holes to like 1/8 or 3/16 diameter so the squeeze out will fill the holes?

 

[mickyryan]

Jeff you moving right along man!

 

[Jeff Fro]

Yes sir! I'm going to try to have it splashed by the end of summer to early fall. If that doesn't happen, it'll be an early spring splash.

I measured the only piece of good wood left from the transom and it measured out at 2" thick. Which would make the wood and fiberglass both sides about 2 9/16" thick for an Alpha One. Currently the new transom is two pieces of 3/4" plywood. The back of the hull is about 7/16" thick. Depending on the layup of new glass on the transom as to how thick it will end up being.

 

[Jeff Fro]

Here is a pic of the clean hull. The water in it is from the rain that we got last night right after I finished power washing the driveway.

 

[zool]

Nice project Jeff.....heres the deal on the alpha cutout:

You want 2" to 2 1/4".....

You need Paralellism around the whole cutout....no more than 1/8 flatness deviation on the inner shield, 1/16 for the outer skin.

You want a 13 to 16 degree transom angle.

2 9/16 is too thick...

With the 1 1/2 ply you're using, plus the 7/16 outer skin, you should come out fine if u control the inner skin thickness.

If its not parallel in the end, sand or grind it....its important for mercs....

 

[Jeff Fro]

Nice project Jeff.....heres the deal on the alpha cutout:

You want 2" to 2 1/4".....About 2 1/16" if my calculations are close

You need Paralellism around the whole cutout....no more than 1/8 flatness deviation on the inner shield, 1/16 for the outer skin. Outside is pretty much flat, I'll strive to match the outside for the inside.

You want a 13 to 16 degree transom angle. The angle of the transom is what it is. I'll measure it this evening when I get back home.

2 9/16 is too thick... 1 1/2" plywood stack up with about 7/16 boat hull and 2-3 layers of 1708 should be close to what I need

With the 1 1/2 ply you're using, plus the 7/16 outer skin, you should come out fine if u control the inner skin thickness.

If its not parallel in the end, sand or grind it....its important for mercs....

Thanks for the info.

 

[sheboyganjohn]

You are making great progress. I remember weeks of cutting and grinding on the Sea Ray. Keep up the good work!

 

[Jeff Fro]

I absolutely hate grinding. I wanted to getit all done asap. All of Friday was spent grinding. Saturday was spent grinding, building and test fitting the transom in the boat. Sunday was another final day of grinding.

 

[Jeff Fro]

How thick is the ss tubing for thru hull exhaust?

 

[mickyryan]

no clue but you will get tired of it quickly

 

[Jeff Fro]

I hear ya. I'm looking at the selectable exhaust, thru the hull or out the prop.

Cleaned up the holes going through the transom/hull so the new resin/glass will plug them up. Drilled some 1/2" holes through the new transom for the "resin rivets". Cut up some 2.5 ft x 50" 1.5oz CSM to make some PB. Looks like a lot, probably need quite a bit more.

Mixed up some resin today at 0.4% to allow it to soak into the plywood. After 2 1/2 hours its almost dry. Its 93 degrees, heat index of 106, and 55% humidity.

 

[mickyryan]

good god man 55% humidity , lol i was at 99% and it wasn't raining

 

[Woodonglass]

Nice work on the transom fab.

 

[Jeff Fro]

Thanks WOG. I checked the new transom and found it to be tacky yet. Meaning I could put my hand down on it and it would stick to it. However, after removing my hand, my hand was clean.

Plane for today is to finish making the clamps, formulate game plan, chop up some more CSM, and coat the bolts with some form of mold release.

 

[Jeff Fro]

Ok, transom is in. It took the third time of mixing the PB before I got it to last more than 20 minutes before starting to set up. I used clamps, bolts, 2x4s, all-thread, and a few screws.

 

[Jeff Fro]

If it wasn't for work getting in the way, the transom would have been completely done by now. There are a couple bubbles to grind out due to not moving fast enough. Oh well. It's way better than it was before. I still have a couple of tabs to do in the corners. The 'glass over the top of the transom will get trimmed off and glassed with some CSM to tie it into the top of the hull.

 

[Jeff Fro]

Yep, back at it.

Work, life, kids, other projects, and 'Rona have done their best to put the boat off. Now I can get back at it.

Did some drilling on the inside of the upper half and after 2 years of being inside the garage, there was still water encased in between the layers of 'glass. Not good. So all of the plywood in the upper half has to be replaced.

So, question for ya'll glassin gurus...what is the best way to adhere the plywood to the under side of the upper half? epoxy glue of some type? Chopped glass with resin? Liquid nails (lol)?

Thanks in advance.

 

[kcassells]

Inside upper half of what? Upside down work?

 

[Jeff Fro]

As you can see in post # 76, we had to split the boat into two halves. The plywood that is bonded inside the top half of the boat is still dripping little water. So now we get to replace all of the "under decking plywood", if that makes sense. And yes, all of it will be upside down work.

I did happen to find some MDO board in 3/4 x 4 x 10 sheets, which I believe are almost as good as marine plywood because they have a layer of glass bonded to one side of it already (I think that is what I read on here).

Later today I'll take a pic of the underside so it's fully understood what I need to do.

Thanks.

 

[Jeff Fro]

[No message]