1988 Maxum 1700...There's no turning back now!

[SDSeville]

Re: 1988 Maxum 1700...There's no turning back now!

I think one more session I should be done with the demo, clean up and can start on the build woohoo!!

You are making great progress. It is a whole new ballgame when you are done with the demo. The building part is much more satisfying...and less itchy.

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Hey guys,
So I think I'm finished with the bulk grinding. Here's a couple pics.

Finally was able to take the dust tent down and wash her out to see if there's any areas left that I missed. So there is still wood strips in the chines?? I think it's called?? What is this for? Are they structural? Or used for filler in factory? Should I leave these in or can I cover them up... Fill with PB and cover with mat?
Here's some pics

These two area are up the bow and there's more going all the back to the stern starboard but not port. It's not the same on both sides so that's what's makin me think they used this for filler?? But I have no clue.

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Also got the inside of the fuel tank cleaned out and had it pressure tested to 3psi and it held no prob. Concerned though about the pitting in the bottom. What to do? If like to re-use but what's the best way to clean and get it down to bare metal and then are there any recommendations on what to prime and paint it with? Anything that can be used to fill some of the pitting? Here's some pics.

Thanks again in advance for all ur advice. Couldn't think of doin this withou y'all!!

 

[GT1000000]

Re: 1988 Maxum 1700...There's no turning back now!

Clean it the best you can with a solution of vinegar and water, you can also use a stainless steel wire brush to try and get into the recesses...
You can fill and fair the pits with some JB Weld...
Lightly scuff the surface with something like a 3M Scoth Brite pad...
Then you can prime it with a light coat of zinc chromate primer...
Use a top coat compatible primer on top of that, then paint it with your choice of spray bomb or brush and roll paint in a can...

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Ok thanks gt1m... Will do. Any advice on the leftover wood strips in the hull?

 

[Woodonglass]

Re: 1988 Maxum 1700...There's no turning back now!

If the wood is still solid and not waterlogged and rotting, then coat with resin and glass and move on. If it's wet, grind it out and replace.

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Ok got it, most of it looks ok. Thx woody!

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Hey GT, any recommendations on the zinc chromate primer? Where can I find it? Is there a rustoleum product I can use like the self etching?

 

[Woodonglass]

Re: 1988 Maxum 1700...There's no turning back now!

Yep, WalMart carries Rustoleums SE Primer. Do a Good wash down first with some hot 50/50 white vinegar water. Then follow up with Hot soapy water and rinse with good clean water. The acid in the vinegar will prep the metal for the primer.

RustOleum Self-Etching Primer - Walmart.com

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Ok, sounds good but I've been trying to read up on the primers (I'm a complete noob when it comes to paints/primers/top coats, etc etc., actually I'm a complete Noob when it comes to this all!! .... Learning every day) From what I'm reading self etching is not the same as zinc chromate and zinc chromate is difficult to find cause of its toxic properties? I'm seeing the rustoleum SE primer everywhere so if I can get away with that then great. After I use the SE primer, should i apply another primer or just any rustoleum top coat like acrylic enamel in a rattle can?

 

[glnbnz]

Re: 1988 Maxum 1700...There's no turning back now!

Signing on to follow along...looking great so far!!!

 

[jbcurt00]

Re: 1988 Maxum 1700...There's no turning back now!

After I use the SE primer, should i apply another primer

Yep, metal primer since your painting metal.

or just any rustoleum top coat like acrylic enamel in a rattle can?

Nope, primer 1st.

If you want to use rattle cans, look for high performance Rusto. It has been widely used w/ great results. Apparently better propellant & shoots better w/ better coverage.

It's also a larger can then typical spray bomb cans.

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Thanks for the replies on the paint guys.... Much appreciated and I think I'm clear on it.

Hey Glenn, welcome to my craziness, glad you've joined in on the ride...

Had some time after work this evening so laminated the transom - 2 sheets of 3/4" marine grade ply with Titebond III.

 

[jbcurt00]

Re: 1988 Maxum 1700...There's no turning back now!

That looks like you got great coverage before laying them together & then got good squeeze out to 'prove' it. Nice work!

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Yeah, tried using a notched trowel at first but that didn't work too well so I just rolled it on with my 6" roller nice and heavy.

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Had some daylight and nice weather after work today so decided to mix up a batch of resin and take care of my rookie mistakes:/

And the crack in the transom skin...

The hull seems a bit flimsy and I'm a bit concerned it's too thin after the grinding and considering the shoddy original build. Would it be a good idea to layup one layer of 1708 over the entire hull? Can't decide if it's worth and would make much of difference.

 

[GT1000000]

Re: 1988 Maxum 1700...There's no turning back now!

Would it be a good idea to layup one layer of 1708 over the entire hull? Can't decide if it's worth and would make much of difference.

I am very biased in responding, YES!
I did it to mine and the results were amazing...
The big thing to keep in mind is it will eat up a lot of expensive 1708 and resin...
I did it after tabbing in all of my stringers, as a final wrap over everything that had been done up to that point...including repairing a ton of rookie mistakes...:facepalm:
Before the hull had a certain "softness" to it, especially in the spaces between the stringers, kind of flexible...
After adding the layer of 1708, it felt as though it was made of steel...
While that might be a bit of an exaggeration, it really did stiffen up the entire hull...
But like I said, It will drink a lot of resin and consume quite a bit of 1708, which hurts the pocket a bit and will add a good bit of weight, also...
All in all, I am extremely pleased with the result and if I happen to lose a bit of load capacity and maybe a bit of top end speed, The warm fuzzy feeling I get from knowing the hull is almost 50% thicker than factory, more than makes up for any losses...

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

So the temps look to be getting much colder over the next few days and while its been warm the past week or so during the day, I haven't been feeling all that confident in trying to PB in the transom and start on the stringers for fear of running out of warm temps. I know there's always heating the areas with lamps and all but i'm not really into dealing with that. I've decided that I don't want to chance having an issue with the layups and the possibility of not finishing what I've started and leaving the transom or stringers exposed and not totally waterproofed over winter. So, I'm wrapping up the hull for winter and will focus on the upholstery. The build will have to wait till spring...

I am very biased in responding, YES!
I did it to mine and the results were amazing...
The big thing to keep in mind is it will eat up a lot of expensive 1708 and resin...
I did it after tabbing in all of my stringers, as a final wrap over everything that had been done up to that point...including repairing a ton of rookie mistakes...:facepalm:
Before the hull had a certain "softness" to it, especially in the spaces between the stringers, kind of flexible...
After adding the layer of 1708, it felt as though it was made of steel...
While that might be a bit of an exaggeration, it really did stiffen up the entire hull...
But like I said, It will drink a lot of resin and consume quite a bit of 1708, which hurts the pocket a bit and will add a good bit of weight, also...
All in all, I am extremely pleased with the result and if I happen to lose a bit of load capacity and maybe a bit of top end speed, The warm fuzzy feeling I get from knowing the hull is almost 50% thicker than factory, more than makes up for any losses...

Gus, thanks for the biased response That's the way I like it... I think I'm going to do the same with the 1708 for the extra reassurance and rigidity... It just feels way too flimsy now.

I did get to work on the gas tank a bit over the weekend. Got most of the pits filled with JB weld (not the prettiest of jobs but whose gonna see it anyway), cleaned up with vinegar/water, then soap and water, then a good scrubbing and a coat of SE primer.

Before


After


I think its coming out pretty good - still have to throw on a coat of primer and top coat. Will do that this weekend.

As mentioned earlier, I'm gonna focus on the upholstery now. Picking up a sewing machine I'll be borrowing from a friend and hopefully it'll suffice for the vinyl work - we'll see... Planning on laying everything out this weekend to figure out how much vinyl i'm gonna need. Any recommendation on type and where to get thread, staples, etc.?
Thanks all and hope everyone's having a great week!

 

[scottmm73]

Re: 1988 Maxum 1700...There's no turning back now!

It just feels way too flimsy now.

Just remember you've removed all the supporting/stiffening structure from the boat. Just imagine how flimsy an airplane would be without all its bulkheads, stringers, channels, and cabin/cockpit flooring. The deck adds an unbelievable amount of stiffening and strength to the hull. Weigh your options if planning to add an extra layer. Extra weight will lower top speed, increase fuel burn (to the boat and your pulling vehicle). Just throwing that out there.

 

[further]

Re: 1988 Maxum 1700...There's no turning back now!

Hey Scott,
Yeah I hear ya loud n clear!! It's more concerning to me that the total thickness of the hull itself is not impressive and I've taken some of that off in grinding it out so just looking to put it back some and definitely looking at the extra weight issue but feel that my piece of mind with adding thickness as well as sealing it all up is more important at this point than the added weight. Heck it's prolly not gonna add any more than all the wet foam I was cruisin around with for years so performance shouldn't suffer