1989 Starcraft Leaking Problem

[111torrance111]

I have purchased a used 1989 18' Aluminum Starcraft fishing boat and have several leaks that have been repaired by the previous owner in two ways.

1. "Below Water Sealants" available @ most boat shops.
2. On soft spots he drilled screws into the hull and then used the sealant.

My concerns are in regards to the soft spots, I have little white spot that seem to eat through the aluminum. I can actually scratch a small hole into the hull where these spot are visable.

Is this type of repair (Screw/Sealant) safe for small holes, and how can I truly test the integrity of the hull. I don't want to spend a lot of money fixing something that just isn't safe.

Any help/comments would be appriciated.

Thanks/Jerry

 

[HONKER1]

Re: 1989 Starcraft Leaking Problem

It sounds to me that you have a bad cases of electrolysis. I just finished restoring a 18' Starcraft that was covered with electrolysis holes caused by salt water.
The big holes I had tig welded closed (hard to find someone good enough to do the job, aluminum is very thin). The small holes (1/8" or smaller) I got some aluminum welding rod, torch and sealed them myself. This is harder then it seems, so practice on some scrap aluminum before you tackle the boat.
The areas that I was suspicious of I cleaned and brushed the aluminum and used a trowel to apply epoxy like Marine-Tex gray. Exposed areas you will need to sand to a nice finish. After I was all finished welding, soldering, and epoxying, I repainted the boat.
It's alot of work depending on how many holes you are dealing with, in my case 35+, but after you get done it is very rewarding. I learned a lot about boating.
Also there are many websites that will walk you through working with aluminum. LOL

 

[111torrance111]

Re: 1989 Starcraft Leaking Problem

Thanks Honker

Jerry