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View Full Version : Replacing stringers and floor, any advice?


79_SnS_atl
04-03-2010, 09:18 PM
The MasterCraft Project (http://www.facebook.com/group.php?gid=102832819752389) - I am replacing the stringers and the floors in this 79 MC 190 Skier and wanted to know if anyone else has had to do the same for their restoration project? I have some good advice on how to start but wanted to hear from any pros that can lend some advice on the type of resins to use with the fiberglass matting?

Is it best to use mat or strand? And which resin is better for structural? General Purpose Polyester Resin? or Isophthalic Polyester Resin?

Cloaked
04-03-2010, 09:35 PM
The MasterCraft Project (http://www.facebook.com/group.php?gid=102832819752389) - I am replacing the stringers and the floors in this 79 MC 190 Skier and wanted to know if anyone else has had to do the same for their restoration project? I have some good advice on how to start but wanted to hear from any pros that can lend some advice on the type of resins to use with the fiberglass matting?

Is it best to use mat or strand? And which resin is better for structural? General Purpose Polyester Resin? or Isophthalic Polyester Resin?Jeremy79 is the man.

TMCNo1
04-04-2010, 06:41 AM
The MasterCraft Project (http://www.facebook.com/group.php?gid=102832819752389) - I am replacing the stringers and the floors in this 79 MC 190 Skier and wanted to know if anyone else has had to do the same for their restoration project? I have some good advice on how to start but wanted to hear from any pros that can lend some advice on the type of resins to use with the fiberglass matting?

Is it best to use mat or strand? And which resin is better for structural? General Purpose Polyester Resin? or Isophthalic Polyester Resin?

Check out this thread, http://www.mastercraft.com/teamtalk/showthread.php?t=23492&highlight=making+progress

79_SnS_atl
04-12-2010, 11:02 AM
Here is the most recent pics of the engine coming out and the rotten stringers as well.

http://www.facebook.com/group.php?gid=102832819752389

Sidewinder
04-12-2010, 11:36 AM
79 SnS, I too have a '79 that is a work in progress... I'm about to start work on the fiberglass swim platform and stop the leaks that caused me grief last year.

Do you have any pics of the transom / gas tank area when you removed the gas tank? I checked your facebook page, but didn't notice any photos that show the entire area. I'm really curious to see what that area looks like.

Thanks!

Sidewinder
04-12-2010, 11:37 AM
My thread on the swim platform issues is here if you're interested...
http://www.mastercraft.com/teamtalk/showthread.php?p=671633#post671633

Skipper
04-21-2010, 07:34 PM
Might find a lot of answers to your questions at this website. My rebuild project.

http://www.freewebs.com/billsboatworks/

Sidewinder
05-08-2010, 01:50 PM
Skipper, Thanks for the info.

When I took the tank out it looks exactly like Bellinghamster's boat from the inside (see link in post #6 above and go to last pic in post #8). All 9 "bolts" were lag screws with 7 out of 9 just barely poking through the transom and two of them sort of going into the inboard set of stringers.

Bellinghamster
05-09-2010, 10:45 AM
Wow, what a walk down memory lane. As much "fun" as I had doing the stringers in my '78, it was sure nice this spring to just put the plugs in and go for a ski!

Kudos for doing it right. You're breathing another 30+ years of life into those beautiful craft!

Laurel_Lake_Skier
05-09-2010, 12:07 PM
The MasterCraft Project (http://www.facebook.com/group.php?gid=102832819752389) - I am replacing the stringers and the floors in this 79 MC 190 Skier and wanted to know if anyone else has had to do the same for their restoration project? I have some good advice on how to start but wanted to hear from any pros that can lend some advice on the type of resins to use with the fiberglass matting?

Is it best to use mat or strand? And which resin is better for structural? General Purpose Polyester Resin? or Isophthalic Polyester Resin?
There's a lot of good info On This Site (http://www.correctcraftfan.com/forum/forum_posts.asp?TID=16014&title=another-bfn-rebuild). Once on the site, in addition to that thread, you can search for stringer replacement or something similar and you'll get lots of great tips.

79_SnS_atl
05-26-2010, 09:38 AM
Here is some of the pics or my stringer rebuild. Had about 30 hours or so in total rebuild. Boat is solid as a rock now and the goal is to make it better than new. Hope to use it for a few weekends this summer. Join the group and follow my progress on FaceBook. Link below.


http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs262.snc3/27745_1386388151845_1596297808_30945708_563826_n.j pg


http://hphotos-snc3.fbcdn.net/hs603.snc3/31745_1376407222328_1596297808_30925423_5903706_n. jpg


http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs541.snc3/29645_1372610727418_1596297808_30918286_3139006_n. jpg

http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs109.snc3/15698_1339328775390_1596297808_30847267_7243265_n. jpg

oxberger
05-26-2010, 01:26 PM
Awesome Job! Love the old S+S. They just get better with age and what you did will make it last a good long while.

strad
05-26-2010, 07:49 PM
Did you take any special steps to support the hull from more points than the bunks while doing the stringers? I'd like to be able to do a project like this safely someday. . . you do very nice work btw.

glassmaster
05-26-2010, 10:38 PM
Looks great, I know its a little late but I hope you blocked up the hull or used stands to make sure the hull wasn't twisted. It doesn't have to be off much to make the boat handle weird.
I haven't re-built a MasterCraft before but when I did my 23' Sea Ray I used a set of 6 stands and a 15-20 foot clear hose filled with water to make sure it was level side to side front to back and cross hatched to make absolutely positive it wasn't twisted before I glassed the stringers.
Anyway it looks like you did an excellent job and hope everything comes out perfect and you get a lot of use out of it.

79_SnS_atl
05-31-2010, 09:14 AM
One of the bigger hurdles was that I had to get the 30 year old seized motor mounts unseized. I had a buddy that owns a auto service center take a torch to the the mounts where they are threaded to finally break them loose. He did a great job but he really had to muscle them to break them free. This needed to be done because there more than likely will be differences in the old stringers and the new, you will definitely need the adjustments when the motor goes back in.