Damage boat project |
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3734 |
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I think it is worth the trouble to fix it right.
I would finish the structure of the rudder support inside now that you have the location glassed and solid and then you could cut or grind the rudder mount box outside back to original shape so it mounts joust like the factory made it. |
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Mike9812121298
Senior Member Joined: March-24-2017 Location: Seattle Status: Offline Points: 139 |
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I driveshaft strut recess is still there. That mount only had one small crack. I'm just to add one or two layers on the underside strut recess. So the driveshaft angle won't be changed.
The rudder might have to be bolted to the bottom and stick out I would seal it to help with the drag. But unless I was to cut into the bottom side of the fiber glass I just laid to make a recess it might not be worth the trouble. |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Chris,
Yes on the drag but the bigger problem would be the change in shaft/engine angle if the strut was flush mounted. |
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Pete - what would be the downside of surface mounting? Extra drag? Just wondering.
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Did you fill in the recesses? |
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Mike9812121298
Senior Member Joined: March-24-2017 Location: Seattle Status: Offline Points: 139 |
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When I laid down the fiber I made a template of the hole. I cut the fiber so it was 1/2 inch wider than the hole to grab the edges of the hole. I made 2 peices the same then went 1/2 inch wider and did the same again. Before I laid any fiberglass down I coated around the hole and any cracks or delatmated parts with the resin. I checked it in the morning and it was hard as a rock.
I'm using this resin. I got 10 yards of woven roven for 10 bucks. http://m.fiberglasssupply.com/product.cgi?group=6113&product=6177 I once im done with glass I'm need some way to figure out where to put the hole for the rudder. The strut mount I'm just going to drill from the under side. |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Mike,
The concern is resin in itself isn't the strength of fiberglass. It's simply an adhesive and the glass is the real strength. Another question is did you make spacers to form the recesses for the strut base and rudder port. before laying in the glass in the bilge? |
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tryathlete
Platinum Member Joined: April-19-2013 Location: Lake Villa, IL Status: Offline Points: 1797 |
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Very important question and answer about layered cloth/ resin versus resin. That hole is the center of stress for that rudder assembly. I can't tell either from the pics.
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peter1234
Grand Poobah Joined: February-03-2008 Location: United States Status: Offline Points: 2756 |
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Mike did you stack that woven cloth of fill the hole with resin?
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former skylark owner now a formula but I cant let this place go
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tryathlete
Platinum Member Joined: April-19-2013 Location: Lake Villa, IL Status: Offline Points: 1797 |
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Super! Way to go Mike! So glad you're letting us see the project, step by step.
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Mike9812121298
Senior Member Joined: March-24-2017 Location: Seattle Status: Offline Points: 139 |
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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Looks great, you already have the hang of it.
I would also wrap it up the transom some, just for good luck. |
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Mike,
The thickness of your repair should be the same as the original. IE, if the hull was 3/8" over the rudder port and strut, then your final thickness should be 3/8" or slightly thicker. |
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Mike9812121298
Senior Member Joined: March-24-2017 Location: Seattle Status: Offline Points: 139 |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Poly plastic sheathing (visqueen) will not stick |
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tryathlete
Platinum Member Joined: April-19-2013 Location: Lake Villa, IL Status: Offline Points: 1797 |
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Quinn, you and Trump need bigger hands.
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quinner
Grand Poobah Joined: October-12-2005 Location: Unknown Status: Offline Points: 5828 |
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Size can also be an issue with cups, found the DD cups to be a bit to work with, D's are nice but C's are generally the easiest to handle and manipulate. |
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Morfoot
Grand Poobah Joined: February-06-2004 Location: South Lanier Status: Offline Points: 5320 |
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BAZINGA! (technically though Pete, the layers of fiberglass are delaminating from each other ) I'm spoiled as I have the proper materials to do a project like this so my suggestion to use wax paper is something that those that don't have access to the proper plastics to place down over a repair or the means to vacuum bag it. You can try plastic wrap but not sure if it would stick to the repair or not. If a roller isn't available then you can always use a plastic squeegee ( like the ones you'd use to spread Bondo) to squeeze the air bubbles out. Like Garys suggestion above, if anyone or yourself eats yogurt then those containers work great for mixing epoxy. Go buy yourself a cheap digital kitchen scale and weigh out your resin. The mixing directions should include both volume and weight measurements to add. We have lead shot bags laying around and 5lb lead blocks to weigh down repairs instead of bagging everything. The avg Joe mechanic probably doesn't have lead shot around so sandbagging it works just as good. Could always add water to the sand to increase the weight without adding bulk. |
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"Morfoot; He can ski. He can wakeboard.He can cook chicken.He can create his own self-named beverage, & can also apparently fly. A man of many talents."72 Mustang "Kermit",88 SN Miss Scarlett, 99 SN "Sherman"
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Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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I have not done any big projects that need a lot of cups so for what I do I save stuff like this -
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MechGaT
Senior Member Joined: March-09-2015 Location: Chattanooga Status: Offline Points: 271 |
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I found some bowls without wax at Wally World and Aldi to use for that reason. |
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'92 Sport Nautique
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tryathlete
Platinum Member Joined: April-19-2013 Location: Lake Villa, IL Status: Offline Points: 1797 |
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This is one of my favorite threads. True proof of why I came here to begin with, and a major factor in my decision to buy a CC. Mike, we are all living a bit vicariously through your generous willingness to give and take from CCF. What a cool story you'll have to tell about this incredible boat when it's all finished.
I hope to see it in person when I get out to Seattle sometime. |
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Mike9812121298
Senior Member Joined: March-24-2017 Location: Seattle Status: Offline Points: 139 |
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Thanks for all the info guys. I have a feeling if I would have went into this project blind, there's a good chance the boat would be right back in repair a few weeks later. The lady at the store was saying do 3-4 layers than let it sit for 24 hours. She also said the epoxy resin was over kill but I got it anyways. I'm going to need to find something to keep it compressed.
I also ordered the double taper drive shaft and strut bushings this morning. I still need the prop, and some small things I've seen a 2000 master craft in VA I believe they were asking 6-7k for the same issue. |
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john b
Grand Poobah Joined: July-06-2011 Location: lake Sweeny Status: Offline Points: 3241 |
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I found the pumps from uscomposits to be neat and convenient. I oz/stroke.
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1970 Mustang "Theseus' paradox"
If everyone else is doing it, you're too late! |
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SNobsessed
Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102 |
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I cut the tops off of beer cans & use them - have plenty of stock to use!
Somewhere I got the info that the wax in paper cups was bad for the mix. Maybe just bad garage lore . . . |
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3734 |
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I appreciate the tips, I have only done small jobs with Fiberglass so far and keeping my mixing pots and tools useable was a chore.
For small area repairs I was told to mix the hardener and epoxy in paper cups so any excess just gets thrown away. That has made the process a little easier. Thanks |
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Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Mark I got my metal roller from US Composites it comes apart just like a paint roller.I just throw it in some acetone and use a cheap throwaway brush to get the majority of the resin off. Then I take it apart and wipe it down with some more.. While it's apart I smear mold release wax inside of it since I have some,it seems to keep the threads and the inside of the roller clear.
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Mark,
Tim's recommendation to use the sandbag is to try to compress the layers of disbonding back together. Ideally you could set up a vacuum bag to do the same but that would be difficult in Mike's project. Roller covers go in the trash but a metal laminating roller can be cleaned with a strong solvent like acetone. |
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MrMcD
Grand Poobah Joined: January-28-2014 Location: Folsom, CA Status: Offline Points: 3734 |
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Can I ask you guys what should be used to clean the tools, I saw the post showing rollers.
They look expensive to trash after application. Is this where the Sandbag idea over a plastic layer helps or eliminates the need to roll the epoxy/fiberglass mat to remove air bubbles? The advice for Mike has been outstanding. He is going to have a great boat for a little money and some elbow grease. I have a large fiberglass project ahead of me so I am trying to pay attention. Mike, I have seen several Dyno tests on the same engine, tested with a Carburetor and then with Fuel Injection. At wide open throttle and max RPM the Horsepower is identical for both. The fuel injection shines from idle all the way to wide open throttle offering a little more torque at all the mid RPM ranges making the engine feel a little more powerful even though they both make the same max horsepower. The FI system your boat came with was a known trouble source so it is very good that someone helped you out and went back to a Carb. Don't sweat it. Mark |
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Mike9812121298
Senior Member Joined: March-24-2017 Location: Seattle Status: Offline Points: 139 |
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Ok that's what I thought just double checking!
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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EPOXY!! EPOXY!! EPOXY!! |
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