RickK's 170 rebuild

[slvrlng]

Understood Bob, my point was that if it cures in the cup it will eventually cure in the lam. That time can be very extended.

[bondobill]

Rick
   
I can only imagine the amount of work involved in doing a complete rebuild in the driveway at home.  

Bill

[RickK]

Not much to report on - I ground out the hull in the affected areas yesterday morning and I must say that epoxy seems to grind much easier than poly, for me anyway. Didn't take very long to smooth out any areas I was going to overlap.  Nice.
I had everything trimmed and ready to be lam'd by 1030A.
I started laying in the thick fillets along the chine and filling in the strake and then let it sit for a while.  That "while" was where the sun came up and started cooking.
Not trying in the least to rub it in on anyone but boy was it hot out, especially in the hull.  Almost passed out.  Had to take some breaks and drown myself in water inside and out - the heat coming out of the hull was crazy. Didn't have the tarp up to shield the sun. Won't do that again.
Anyway, got the port side done Saturday and then Sunday morning I scruffed a little (the glass was still not 100% cured) and then layed in the fill piece that will help divert any water from the deep part of the hull.  Layed in a big fillet of putty to fill in the imperfections of the angles I had to cut along the piece and pressed the piece into the putty.  Then I lam'd a piece of 1708 over the filler.
Weird thing was that I thought I had most of the "drop of the hull" filled in with the filler piece (the hull on these boats drops down in the keel area as the hull goes forward, thus allowing pooling of water even when on the trailer - see Hefner topic) but as it started to cure some of the resin started pooling up in the 1ft area aft of the filler.  Sorry it is hard to see in the pic - look at the keel forward. This is happening with the trailer jacked up for normal drainage, so anyone thinking of filling this area in, like Eugene did on Hefners, might want to put a couple pieces in at different angles to run that water farther to the aft.
I will have to make sure I design to allow water that might get into the area, to drain out.

Looks like I have a couple areas that are a little dry in the lam, just a couple and overall the hull will still be fantastically stronger than it was without this layer of epoxy on it.  I have 3 layers of 1708 in the chines and 4 in the keel - ought to be strong.

Next weekend I can start laying lines again, marking the stringers and scribing them in - going to have the tarp back up for sure. My neck might stop glowing from the sunburn by then  

[gman 82 aquasport]

Looks good Rick, are you going to add a piece up front to build it up a little more or leave it as is?
I know you must have been heating up in the hull working that epoxy, amazing how it builds up a little heat :!: I was lucky enough when doing mine that one of my neighbors was selling a temp shelter that had walls and ends and I did mine under that..Just had to wear a respirator when working the epoxy
With 3 layers all over and 4 on the keel, you will have a strong hull..

[jahoward1]

Wow!  No wonder you guys have boats thatlook showroom beautiful.  Can't wait to see her finished.

[dirtwheelsfl]

Relief thats done huh?!   Wadja make the bow eye backer out of?

[RickK]

Relief thats done huh?!   Wadja make the bow eye backer out of?

Hi Chris,
I used the old balsa (some kind of light weight wood) that came out of it.  Trimmed it down to remove all the old rot. It'll work with an aluminum backer. Coated it with epoxy.

Oh and yes, I'm glad that is done.  Have a good subsurface to start with now - I think it was worth the extra $350.  New tarp will go up this weekend.  
Hey, how long does it take for the buckets to harden enough to be cracked and cleaned - seems to take a week or so.  Maybe with epoxy you need to use the paper ones?

[dirtwheelsfl]

Oh and yes, I'm glad that is done.  Have a good subsurface to start with now - I think it was worth the extra $350.  New tarp will go up this weekend.  
Hey, how long does it take for the buckets to harden enough to be cracked and cleaned - seems to take a week or so.  Maybe with epoxy you need to use the paper ones?

In the sun, a day or two. Really have to make sure to scrape the sides when mixing or youll have some tacky residue stuck in the pot. Never used a paper one, they only have marks on the outside...

[RickK]

are you going to add a piece up front to build it up a little more or leave it as is?

I am not sure.  I think I will have to lower the front of the hull (or maybe not), and add some water to the hull and see where it pools up.  I'm sure I'll have to add the same thing Eugene added to the FB.

With 3 layers all over and 4 on the keel, you will have a strong hull..

One layer in the hull, 3 in the chine and 4 in the keel.  A good substrate to build upon.  

[RickK]

I came home the other day and there was about 150 gallons of rain in the boat - no leaks   Have to cut the drain hole one of these days.  
Also, as I was bailing the boat out I learned how the water pooled aft of the filler I put in the front of the boat - it doesn't     I will still put in a drain mechanism to the aft though.
This weekend was another huge milestone for me - I've been dinking around on this boat, building this and that and lam'ing this and that and it still looked (and felt) like I was not making any forward progress.  Today I got these cut in


Of course it was quite a job and took two days (boy is my neck red again, Winds were blowing about 30 mph gusts so we couldn't put up the tarp - I had a hat on but of course no sunscreen and I was looking down all the time - thank god for aloe).


The scribing was good and they are within an 1/8" of the height I planned. These stringers are sitting in the hull without any tacking - a beautiful thing for a 12 degree hull (more slope up front).


For the builders that want to know what thickness x layers of glass is:  Here is the tops of my stringers, 3 layers of 1708, 1 of 1808 and then a layer of some 1/16" mat (no clue what weight, had it laying around) on the very inside.


Here are the sides of the stringers - 3 layers of 1708 and 1 of 1808 - shy of a 1/4".


Should be pretty stout - will be lam'd into the hull with 3 layers of 1708 - 4, 6 & 8" - things will be a 1/2" thick at the bottom.  

Now I need to build a cradle to lock these things in and then start working the fuel tank notch, support and install.  Another weekend....

[gman 82 aquasport]

The stringers look great Rick , at 1/4 inch thick they are thicker than mine where from the factory..STOUT will be an under-statement 8)

[RickK]

Thanks Gman - boat may be ready for a James Bond movie when done  

Just glad to be making visible progress - gotta keep the sense of accomplishment going....
My arms are sore from pushing that jigsaw through that much glass, especially the first stringer - cut everything too long intentionally on the first one and then trimmed it in slowly. 13 ft stringers - each time you trim it down 1/4" through 1/4" stock it takes a while and a lot of force.  Glad to be done.

[dirtwheelsfl]

It seems like no matter how much work you do, nobody notices until theres paint on it!

[gran398]

It seems like no matter how much work you do, nobody notices until theres paint on it!

I'd rather look at the guts than the finish...that little girl is gonna be a brick house in a chop.

[Blue Agave]

Looking Good!