Weeding the Pumpkin patch |
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91nautique ![]() Senior Member ![]() Joined: May-26-2005 Status: Offline Points: 104 |
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Greg,
I cant remember what was supporting mine back when we went through the refloor in 2000,but I remember the original drop in piece there was a mess. It was replaced with 3/4'' marine ply, the access hole for the gland was cut and the floor was glassed heavily with chopped strand mat. Its very heavy... There is no support like you have in your pic, and the boat has no rear seat, so the entire section has seen heavy use in 8 yrs and 800 hours. It still looks the same as when it was done back in 2000. But your's looks to be wider? mine is 26 3/4 inches wide. Did the same for the drop in floor at the front, (same width) it takes the weight of the observers seat and 2-3 people but it was made from a composite vacum formed piece that I got as an offcut from a pro boat builder. It weighs virtually nothing. No issues with that either. Stunning progress your making, I hear that big block starting to rumble from here... |
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Thanks and good to hear from you 91. Know that some of my success has your name on it!
![]() Yes, my rear deck is a little wider...36" |
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91nautique ![]() Senior Member ![]() Joined: May-26-2005 Status: Offline Points: 104 |
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Greg, Out of curiosity- is the 36'' measurment the entire area? What is the measurment between the two inner stringers? |
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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The deck is 36 1/2W X 42L. It's 21"(width of the alum. support) between the inner stringers if I understand your question. |
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8122pbrainard ![]() Grand Poobah ![]() ![]() Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Greg, The horizontal lags bothered me too and it's why I asked. Short lags that wouldn't go through the 1&1/2" stringer aren't the greatest! I'd bet that CC had some longer lags in it originaly which compromised the integrity of the sealing of the stringer (plus no attempt to sealing the bolt holes). It was little things like this that really hurt the life of the wood stringers!
If you go with the original aluminum channel, here's what I would do. Short pieces of aluminum angle welded (or bolted) to the sides of the vertical channel will allow you to bolt down into the top of the stringers instead of into the sides. They would also place all the loading of someone jumping into the boat on the top of the stringers where it should be. You would still have plenty of room for the exhaust. Don't forget the CPES down the bolts holes! Sometimes minor changes are needed from the original to overcome engineering problems!!! This remindes me of when I restored my Atom and finding one of the major problems (and leak) with the hull. When they installed the engine, (mine has the rarer CC/Chris engine instead of the Gray Marine) they ran into a clearance problem with the frame that ran under the trans. The engine wouldn't sit low enough in the bilge. The installer had used a chisel to cut out almost all (only a 1/2" left) of the frame including slicing off the now too long wood screws holding the inner keel to this frame. Double sistering and epoxy bonding the lower section of the frame cured the problem! |
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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I like that solution, it's clean and simple...and keeps the original part in! The best part is I can pick that little bit up a little later.
I'd like to think I would've thought of it, but knowing me...?!!? LOL Thanks again Pete! |
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79nautique ![]() Grand Poobah ![]() ![]() Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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well I can't see the picture while at work but it sounds like you guys are looking at a later model engine cradle that they started using around 81 and it actually was part of the pylon support as well. It was mounted on the 81 I had with through bolts perpendicular to the stringers and not lag bolts. All of the 79's I've seen didn't have the aluminum cradle for the engine mounts and pylon.
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Chris, I have the engine cradle and it is lagged; horizontally and vertically. That doesn't bother me so much because I won't need to take it out so often(I hope). I'll seal them in good.
The piece we're talking about is further back and supports the center of the removable floor. It's a separate piece and is an upside down C shape bolted to the inside of the stringers. Nice to see you stop by! |
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8122pbrainard ![]() Grand Poobah ![]() ![]() Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Chris, When you get to a spot where you can look at the picture, take a look. It's the add on center support for the aft removable floor board we're talking about.
BTW, When Greg's done with it, he's going to get you down there to jump around on it for the big testing!! If your testing works, it will take anything. Greg, just incase you haven't seen a picture of Chris or met him, Chris is a person with a large stature! |
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79nautique ![]() Grand Poobah ![]() ![]() Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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I've got a little beer belly just like all ya'll and that's the only flabby part about me. ![]() I understand, sounds like the rear brace is gone the 1x6 piece across the top of the stringer was replaced with the c-channel should work but Hey IT's NOT ORGINAL so you might want to re-think those point deductions ![]() |
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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LOL...no deductions on this one. This piece is original! I do think my '79 was like you say with a cross board glassed in. |
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Hollywood ![]() Moderator Group ![]() ![]() Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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It is original, unlike the SN where the 1x6 goes stringer to stringer. If they did that on the BFN it would probably fail due to the wider span. Also, remember the stringers are not floor height, there wouldn't be adequate support for the 1x6 from the plywood.
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JoeinNY ![]() Grand Poobah ![]() ![]() Joined: October-19-2005 Location: United States Status: Offline Points: 5697 |
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Its just a difference between that era BFN and the SN, the SN has higher stringers in that location so they can use them and just glass in a board across. The support on the BFN is higher than the stringers its lagged to.
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87BFN owner ![]() Grand Poobah ![]() ![]() Joined: August-25-2006 Location: Ypsilanti, MI Status: Offline Points: 2194 |
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Greg,
That support is in my boat as well. SO I would say it original. Gives you a great place to bolt your MSD ignition box to as well. ![]() |
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79nautique ![]() Grand Poobah ![]() ![]() Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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yea if you don't want to use it very long. you mount it down that low it's going to get wet. |
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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This is sanded to 600 as per Minicraft to accept the gel. FWIW they are slammed with private customers as a sign of the times. It seems many are fixing their own boats rather than paying someone else.
I used regular fiberglass resin with mil fiber as the filler and just a bit of talc...the talc makes it much more workable. ![]() This is my wrapping paper episode that I referred to on Joe's thread...a computer should have 'memory' like this paper had?!!? LOL ![]() I don't know what to say about this...except that west is going to get their pound of flesh. If I started the foam again now I'd have plenty. The learning curve got me again?!!? LOL The lighter side of this fiasco is that she is solid! ![]() ![]() |
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8122pbrainard ![]() Grand Poobah ![]() ![]() Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Greg, What's up with west and the foam? Did I miss something?
What form of gel did you order from Minnicraft? The quart or the spray can? I've had very good results with their spray cans for small jobs. In fact, I had to do the exact keel job on my Tique. Mine however was farther aft due to beaching in rocks or gravel so I didn't go to the extent you did with prep/fairing. Inside is looking great! Getting closer to the big drop test!! |
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Good morning Pete! I ran out of foam JUST before finishing the floor, so I picked up the expensive kit from west.
I used the 888 super gloss in a quart can. They mixed it so I could use the preval sprayer.
Why does that sound like the chain broke when putting the engine in?!!? LOL Do you have the crane lined up? ![]() |
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8122pbrainard ![]() Grand Poobah ![]() ![]() Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Greg, I got the best price quote from Inco services (Alphaetta) problably because they are closer to you and it will be less travel time. Lewis Crane (Marietta) and All Crane of Georgia (Austell) were almost twice the price. All were quoting 10 tons cranes with lifts heights of about 100 feet and a reach or 50 feet. Inco wants 48 hours notice so keep the pictures coming so I can keep a eye on your progress. I figure when you get the floor done. We'll leave the engine out of the boat.
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87BFN owner ![]() Grand Poobah ![]() ![]() Joined: August-25-2006 Location: Ypsilanti, MI Status: Offline Points: 2194 |
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Had no problems with the MSD box being mounted there. It's a marine box as well so it should handle the little bit of water it might possibly see. I have a had a regular MSB box in my 79 250 for over ten years and it sees water on a regualr basis at the sand dunes. But thanks for the tip Chris, I will keep an eye it.
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Pete, I know you have a crane bigger than that in your back yard...hook it to the diesel.
![]() The crane is gonna bounce, so I'll need some help fixing the driveway?!!? |
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Edit, I just realized we need 2, so I'll look for another here... |
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skicat ![]() Platinum Member ![]() ![]() Joined: May-18-2006 Location: Duluth, GA Status: Offline Points: 1129 |
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I know I am slow, but what the heck are you doing with a crane like that? Too much wood in that floor? ![]() |
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8122pbrainard ![]() Grand Poobah ![]() ![]() Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Greg, It was earlier in this thread that Greg and I started talking about how strong his hull was going to turn out. Somehow we got joking about testing it by dropping it from a crane!!! |
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Hollywood ![]() Moderator Group ![]() ![]() Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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So why the 2 cranes? One crane to lift the boat, and then the ther crane lifts that crane?
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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I thought we were going to drop a crane in it...thus # 2?!!? LOL |
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skicat ![]() Platinum Member ![]() ![]() Joined: May-18-2006 Location: Duluth, GA Status: Offline Points: 1129 |
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I thought maybe you were going to try & put it in the water & with everything so low, no ramps are open!
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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For anyone who had glassed over foam for their floor...
How many layers of glass and what type of cloth were you using? I'm asking because I don't want to shoot a squirrel with a bazooka, just enough for the job. Weight is my concern, but I don't want it to break next week either! |
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BuffaloBFN ![]() Grand Poobah ![]() ![]() Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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OK then...I may end up vaporizing the squirrel. I think I'll try the BFH test this morning.
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8122pbrainard ![]() Grand Poobah ![]() ![]() Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Greg, How thick was the original that you cut out? It may give you a idea. Start putting the first layer in and by the time you're done maybe some one will know. Then go with one extra layer.
I've never done a glass over foam. I've alway though of it as weak engineering. |
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