My First StarCraft; 1975 18' SuperSport

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

top 3 life changers of a smart phone: maps, restaurant phone numbers, and looking at starcrafts all day

Yeah, there's an app for that.

When I hear "Apps", I will always think of Pruit Vince's character...the Bartender in Beautiful Girls (1996) saying, "but guys, we have Apps!" :lol:

not him saying it but still a great scene:

 

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

Anyways guys, lovin' having some tin-time. I've been on a tear getting as much ready for when my buddy gets here.

Today I focused on the bow-area corrosion; 2 holes that are completely through (you may recall the PO attempting to fix using black flex seal):

The smaller hole is straightforward; getting drilled-up to a 3/16 and riveted:


The bottom hole is larger and in a tricky position; right against the the outer bow plate.


Here's the plan of attack (rivets already removed):


continued...

 

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

How it looked before today:


Clean-up / Plug-up the hole with JB (temp backed w/ masking tape)) & remove rivets:


What it should look like with the patches in place:


Prior to riveting, I'll clean this area using West Systems aluminum cleaner & etch (similar process as Alodine). Both patches will be buttered with 5200.

 

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

Lastly, You may also recall the PO drilling a few "extra" holes in the hull skin when installing the deck. Most of the errant holes are benign...but one is under a rib...right-up against the outer chine. :facepalm: Really tough spot for riveting so I filled it with JB...and it will be covered with a patch (covering the rib-end cracks) buttered with 5200:


EDIT: Almost forgot...the forward-most lateral Rib was raised off of the hull skin...guessing from years of powerloading. The bucktails were pulled-off. I drilled-out those rivets and we'll be upsizing to 3/16".


Thanks for stoppin' by! :yo:

 

[dozerII]

Re: My First StarCraft; 1975 18' SuperSport

Wow BF, you definitely get the award for not giving up. I'm pretty sure there have been guys scrap hulls in better shape. Kudos for your tenacity and clever repair ideas.

 

[GA_Boater]

Re: My First StarCraft; 1975 18' SuperSport

Once you and your Bud get a rhythm going, those holes and plates will go 1-2-3. You do have earplugs and plenty of the craft beer, don't you.

 

[Grandad]

Re: My First StarCraft; 1975 18' SuperSport

I'm with Glen; that's a scary amount of corrosion. I hope your inner plate(s) will cover all of that thinned area and then some. Since you've become accustomed to riveting, I'd recommend pulling the rivets in any rib close to the corrosion and slip a new patch under the rib to ensure there's no hidden thin spots. JB Weld will fill holes but won't reinforce the hull. Peace of mind. - Grandad

 

[astor]

Re: My First StarCraft; 1975 18' SuperSport

Yep. Definitely is the most difficult resto thread this year. Awesome work. Be sure to look at putting sacrificial anodes on that hull.

 

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

Wow BF, you definitely get the award for not giving up. I'm pretty sure there have been guys scrap hulls in better shape. Kudos for your tenacity and clever repair ideas.

Thanks Glen! I have to admit that I am a little jealous of the other restorations :lol: I just take it 1-step at a time, learning a bunch through the process and hopefully giving others some insight into what to do (and/or what not to do) when they come across some these issues

Once you and your Bud get a rhythm going, those holes and plates will go 1-2-3. You do have earplugs and plenty of the craft beer, don't you.

Earplugs: Check
Pennsylvania Craft Beer: Check
Pennsylvania Boilo: Check

my buddy made sure to send me these pictures in advance (give my liver some warning):

I'm with Glen; that's a scary amount of corrosion. I hope your inner plate(s) will cover all of that thinned area and then some. Since you've become accustomed to riveting, I'd recommend pulling the rivets in any rib close to the corrosion and slip a new patch under the rib to ensure there's no hidden thin spots. JB Weld will fill holes but won't reinforce the hull. Peace of mind. - Grandad

That's a good idea Grandad. The good news is that this corrosion only occurred under the Epoxy...trapped water and may have contained copper if it was intended for Antifouling. They're fairly short ribs & wouldn't take much to remove.

 

[GA_Boater]

Re: My First StarCraft; 1975 18' SuperSport

Boilio is a new one on me. I grew up around Pittsburgh, but not close enough to the coal miners, I guess.

I think you better hide the drill bits and other hole makers. And driving and operating heavy equipment is out of the picture, too. Not too sure where rivet guns fall, I know you don't drive them, but the rivets are driven. :joyous:

 

[Watermann]

Re: My First StarCraft; 1975 18' SuperSport

Yeah I'm there with ya on the corrosion issues, I have been and will be fighting them through my whole resto as well. I like your idea of back buttering the patches although personally after using both products for such repairs, I think I would use marine tex epoxy rather than 5200. My transom is in serious need of attention and will have to be skinned with marine tex.

 

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

Yep. Definitely is the most difficult resto thread this year. Awesome work. Be sure to look at putting sacrificial anodes on that hull.

thanks astor! when i get to the finishing stages,ill be paying close attention to grounding & bonding!

 

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

Boilio is a new one on me. I grew up around Pittsburgh, but not close enough to the coal miners, I guess.

I think you better hide the drill bits and other hole makers. And driving and operating heavy equipment is out of the picture, too. Not too sure where rivet guns fall, I know you don't drive them, but the rivets are driven. :joyous:

i think boilio is an eastern pa thing...more specifically...Lithuanian.

i talk big when it comes to the "wobbly pop"...im more of a sipper...and that case needs to hold me over for a month or 2 :lol:

 

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

Yeah I'm there with ya on the corrosion issues, I have been and will be fighting them through my whole resto as well. I like your idea of back buttering the patches although personally after using both products for such repairs, I think I would use marine tex epoxy rather than 5200. My transom is in serious need of attention and will have to be skinned with marine tex.

So I'm in good company :lol:

I think the rule-of-thumb with these patches is that you want something with great adhesion & remains pliable. If you lose adhesion &/or the epoxy cracks, you'll have water intrusion & probably end-up trapping water against the aluminum.

In pitting outside of the patches, all we're doing is filling them in so that water cannot collect there in the future. I'm still undecided what I'm going to do there. Whatever it is, we need to maximize the quality of the aluminum surface through cleaning (get rid of corrosive elements, remove aluminum oxide) & treatment. If you read the early stages of this resto, I'm not a big fan of epoxy-on-aluminum :facepalm: :lol:

 

[InMotion]

Re: My First StarCraft; 1975 18' SuperSport

Hey BF --- man you're really rockin' ---- a lottttt of corrosion --- but glad to see you are putting a lot into getting those areas beefed up or patched up!!

Keep at it!!!

Take care,

Jim

 

[Watermann]

Re: My First StarCraft; 1975 18' SuperSport

Yeah Bluefin I can understand your dislike for epoxy, I saw your corrosion problem started with as poorly done application of some epoxy. I was just giving another thought on the repair by using both, fill in the pitting with a layer of MT then back butter the splints with 5200. With your repair I really doubt there will be any flex in that area that would be enough to compromise MT which does flex actually. My line of thought is it would add strength to the area that's compromised by the pitting so the hull wouldn't possibly end up with a crack that runs out from the repaired area.

 

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

brief update...more of a test for this new-fangled android :lol:
securing the tabs




attaching to the shelf



continued...(notepad in my android hit its limit :lol

 

[classiccat]

Re: My First StarCraft; 1975 18' SuperSport

port and starboard vertical risers secured to shelves


securing these to the hull sides will be great practice before getting to the sub-h2o stuff!

happy new years guys!!!

thank you so much for the advice and encouragement you provided me throughout 2013!!!

 

[dozerII]

Re: My First StarCraft; 1975 18' SuperSport

Looks real good BF, should add a ton of strength to the hull.

Happy New Year to you as well.

 

[jbcurt00]

Re: My First StarCraft; 1975 18' SuperSport

Looks great BF!