1994 Hydrodyne stringer job |
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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![]() ![]() ![]() So i took the oil pan off this weekend and everything under it looks fine including the pickup. I dont think anything was touched. Im gonna try to bang it out this week and get it back into shape and maybe jb weld or have the welder where i work fill any holes but i dont think there are any. unless that seems like a bad idea to you guys... Im going with 2 layers of glass on the floor with 2 extra layers of strips around the edges. today, cut some holes for the ski locker and wires to go thru carpet latter this week and put her all back together on Saturday and hopefully a test drive on Monday!! |
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8122pbrainard ![]() Grand Poobah ![]() ![]() Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Cameron,
Look'n good! ![]() |
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67 ski nat ![]() Platinum Member ![]() Joined: July-19-2018 Location: Santa rosa Status: Offline Points: 1199 |
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Very nice job. I’m gonna copy your work someday
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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![]() Got the stringers all glassed, bilge painted. and holes for blower pipe and engine cradle drilled. im very happy with how it turned out. engine cradle fits perfectly tight between the stringers. im making floor support for the open bow area out of extruded aluminum that will be through bolted and adding a ski locker. Moving on to the floors this weekend, looks like the best way to do this is just peanut butter the floor to the stringers and use no screws? How many layers of glass over the floor is typically done? |
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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thanks guys. those are gonna kinda suck to get cut off...
you can see them in this pic circled. its what the cargo net screws into. |
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GottaSki ![]() Grand Poobah ![]() Joined: April-21-2005 Location: NE CT Status: Offline Points: 3365 |
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I concur, those radius need fillets else the layup will be full of air and voids. Best get it out of the way and put the non-structural stuff back later.
I find a pnuematic cutoff wheel with a makeshift water steam affixed to it aimed at the disk makes a nice cut., controls airborne fibers in the garage or yard,, into a slurry you hose down, can collect and dispose of. of course full ppe, faceshield, tyvek, and particle respirator |
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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MechGaT ![]() Senior Member ![]() ![]() Joined: March-09-2015 Location: Chattanooga Status: Offline Points: 271 |
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In order to properly glass in the floor, the strip of wood needs to come out. Anything other than very light glass won’t get into the space between the floor and the wood strip. I am assuming you will have some mat on the floor surface.
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'92 Sport Nautique
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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I got the stringers cut this weekend im pretty happy with how they turned out.
Next thing i need to do is cut the rest of the little bit of floor i left around the edges. what is the best way to do that? A bit of a challenge is going to be to cut around the strip of wood just at floor level. I think it was probably glassed on after the floor was in place... I could try to very carefully cut if off with a grinder but id hate to go through the hull... Do you guys think ill have a problem getting the glass to lay around and over top of the strips like the curvy line in the pic? or am i going to have to cut that strip out? ![]() |
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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So i think im going to go with the cheaper poly resin.
I called jamestown and they said poly resin will stick to cpes just fine if i wipe it down with acetone and give it a light sanding before hand. So im going to have the cpes keep it waterproof and let the doug fir give me the strength. the fiberglass just needs to be strong enough to keep the stringers to the hull. I can tell you anything will be better than how it is now and how ive been running it the past few years... Im also going to be doing such a better job of sealing the stringers than hydrodyne did. i cant believe how much exposed wood there was on the stringers. they stopped fiberglass about 4 inches from the transom and just left it exposed. they put so many screws in the very bottom of the stringers to hold a gas line in place so it didn't take much water in the bilge to soak the stringers. I guess ill let you guys know in ten years if im doing it again or if you guys all fell for a marketing trick. ![]() |
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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93/70 ccpb ![]() Senior Member ![]() ![]() Joined: March-05-2006 Location: United States Status: Offline Points: 448 |
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can you send me name and phone number of source of douglas fir lumber thanks dan
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what you dont want to hear from jbear and bill.you cant get in the boat till you get your minute,and they throw you back in water!
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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what kind of fiberglass have you guys done over the floor?
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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Is this what you guys suggest for layup scheduled or could i get away with just doing a couple layers of 1708 on the primary's and one layer on the secondary? if i choose to go that way. |
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SNobsessed ![]() Grand Poobah ![]() Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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If you don;'t care if it lasts more than 10 years, poly will be OK. Do some research to see if poly sticks to CPES though.
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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So should I not be listening to my friend and got with 1708 biax and epoxy instead?
This is starting to get expensive |
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SNobsessed ![]() Grand Poobah ![]() Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Another big advantage to epoxy is that it has a much longer working time, so you can get more done per mix cycle.
I may be wrong, but I remember reading that epoxy sticks to cured poly, but not the other way around. I think you have to have a conversion coat to put poly over epoxy. |
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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Nautiquehunter ![]() Platinum Member ![]() ![]() Joined: December-31-2008 Location: Lake Lanier GA Status: Offline Points: 1010 |
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Yes CPES will stick to poly or epoxy . US Composites is a good source of information and material.
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MechGaT ![]() Senior Member ![]() ![]() Joined: March-09-2015 Location: Chattanooga Status: Offline Points: 271 |
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Like your friend said, you will have no problem doing it with poly, but epoxy has several advantages over poly. The poly will pass water through it where as the epoxy won’t. Boat builders use and have used poly for many years. I looked at the options and thought about vinylester because it is better than polyester resin, but ultimately decided to use epoxy. All will work and will last several years, but I wanted to do my best to prevent rot from happening again. A lot depends on how moist everything gets and stays. Storing in a garage between uses may make it last a long time and never give you trouble. You have to decide what is right for your situation.
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'92 Sport Nautique
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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I have been reading other threads but i get lost in all the fiberglass variations (epoxy, poly, vinyl, cpes, pb, different kinds of mat, different kinds of epoxy) ive never done any fiberglass at all.
My family friend who does fiberglass and sold me the chop strand glass is confident that i will have no problems using poly. do you guys think i should be doing something different? can i use poly resin over cpes? |
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Gary S ![]() Grand Poobah ![]() ![]() Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Here is a quote form Tim-
Anything chopped will not be as strong as something woven. Have you looked at other stringer replacement threads? |
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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So I found Doug fir locally for 38 bucks a board.
I also bought 5ftx 40ft of 1.5 oz chop strand glass from my fiberglass guy. He said I can't use epoxy resin with this stuff but I don't need epoxy? Reading on here that epoxy resin is better? He said to do about 4-6 layers of the 1.5 oz glass for the stringers. How much resin should I expect? Start with a gallon? I was hoping to make my cpes with the resin and xylol. Does this still work with poly resin? |
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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looking for Douglas Fir this week. 2x10 about 15 ft long around 8% moisture. hopefully clean it all up this weekend start grinding and replacing each stringer one at a time.
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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got the floor cut up last weekend. this pic shows just how bad the stringers are... hydrodyne made it easy with no foam under the floor!!
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MechGaT ![]() Senior Member ![]() ![]() Joined: March-09-2015 Location: Chattanooga Status: Offline Points: 271 |
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I recommend a sawzall and leave about an inch or a little less on the edge.The circular saw creates a lot of dust. Pay attention to the contours of the hull, but even so the blade should bend and won’t cut through the hull. I am not sure how that floor is constructed, but you might start by cutting along the inside of the primary to get a feel for how it will go. That will help on the outside edge as you can tell if something is giving resistance and is not the way cutting wood under the fiberglass felt.
I didn’t split my boat, so I can’t say how much it will flex and go back. |
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'92 Sport Nautique
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fanofccfan ![]() Platinum Member ![]() ![]() Joined: December-13-2009 Location: North Bend NE Status: Offline Points: 1797 |
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Somebody with the knowledge help the guy out! Tomorrow is not very far away. I wish I could but have no experience in this department.
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2004 196 LE Ski 1969 Marauder 19 1978 Ski
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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Anyone have any advise on this before i cut into the floor tomorrow?
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camron18 ![]() Senior Member ![]() Joined: March-05-2015 Location: Michigan Status: Offline Points: 164 |
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this weekend i split the boat in two... pretty crazy. it was about ten degrees out and snowing like crazy as i worked outside for about 4 hours. but i got both halves in the garage at the end of the day.
![]() ![]() ![]() After moving the gas tank i relized just how bad the stringers are and i am glad i decided to do them now instead of waiting another year. should there be any fear of the top half deforming over the next few months or will it fit right back on the way it came off? is there any benifit to trying to level the boat on the trailer or is it just as easy to run a string across? Next step is to start tearing into the floor and stringers. curcluar saw with the blade depth as shallow as possible? leave an inch or so of floor around the edges? |
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KENO ![]() Grand Poobah ![]() Joined: June-06-2004 Location: United States Status: Offline Points: 11195 |
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And the rest of the picture story is in the link link |
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Donald80SN ![]() Grand Poobah ![]() Joined: January-12-2009 Location: Denver, NC Status: Offline Points: 3900 |
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Wisconsin Lawn Art.
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1980 Ski Nautique SOLD Back to Cypress Gardens
2002 Sport Nautique, GT-40, FCT2, Cover Sports, Tower Bimini, Inc., Wet Sounds Audio System, Star Gazer Wake Edition S. 1968 Ski Nautique, Holman Moody |
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8122pbrainard ![]() Grand Poobah ![]() ![]() Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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And always follow how sling angles affect lifting capacities.
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