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-   -   Questions for spetre owners (http://www.classicseacraft.com/community/showthread.php?t=18620)

riptide 12-31-2007 05:12 PM

Questions for spetre owners
 
Hello all,I just started ripping into my new to me 77 spetre.Looks like I'll have to replace the fuel tank.The hatches are in bad shape too.My question is what have you guys done to make those hatches water tight and still have access to the blidge and batteries?
Also has anyone relocated the batteries to a better area?
I also have this pie plate on the deck behind the helm chair but there is nothing under it except foam.Can't figure out why its there.
Here are a few pics.

http://img.photobucket.com/albums/v6...8/100_0380.jpg

http://img.photobucket.com/albums/v6...8/100_0379.jpg

http://img.photobucket.com/albums/v6...8/100_0381.jpg

Guess I'll be rewiring the whole electrical system too.What a mess. :D

I would also like to change the scuppers so they exit the transom above the water line.Has anyone done this that could give me some pointers?

Thanks for any help in advance. Jerry

joema 12-31-2007 06:58 PM

Re: Questions for spetre owners
 
Iput scuppers out back when doing trannsom glad i did tubes were in bad shape used TH flaper scupper happy with 80scepter 250 suk mounted inboot stripe used pvc flex pool pipe to inside conner on trailer hold alittle water but at mooring ok under way ok

Capt Chuck 12-31-2007 08:14 PM

Re: Questions for spetre owners
 
Makoman

"Hermco" would be the guy to ask for advice. You need to get those batteries above the deck!!
But here is a couple ideas you could do and still maintain your floor configuration.

The original floor scuppers were glassed in. The floor holes were sleeved 90* out thru the transom

http://img.photobucket.com/albums/v1...oordrain-1.jpg

Before I enclosed my transom, I built a gutter system by spliting PVC pipe in half and glassing it around the inside edge of the deck hatch.The water run-off was funneled to the floor scuppers.

http://www.classicseacraft.com/captc...edium/0007.jpg

The only problem here was the floor hatch had to be modified so it fit tight against the splashwell. You will see in the picture the "curve" to the back side. Then the hatch was hinged to the splashwell.
http://img.photobucket.com/albums/v1...ck/newdeck.jpg

abl1111 01-01-2008 01:33 PM

Re: Questions for sceptre
 

Makoman, You raise a great question.

I have a '75 Tsunami w/ an IO. I have a hatch between the helm and passenger seat that needs to be water-proofed as it is the only place that allows rainwater to get into my bilge area. My bilge would be dry as a bone other wise.

I would want to make the deck/hatch seam totally water- proof.

Making the the 'gutter/drain system' the way Capt Chuck did is great if you can let gravity drain to the scuppers. I have the 'ole thru-the-floor scuppers so my drain water would have to be plumbed w/ a pump to get it up and out.

Any ideas ?

riptide 01-01-2008 04:24 PM

Re: Questions for sceptre
 
The only problem I see with the gutter/drain system is it getting cloged easily.I shark fish alot and the deck gets pretty nasty with fish guts and all.
I was thinking about moving the batteries into the the storage compartment between the seats and then sealing up the hatches and cutting in some TH marine sure seal hatches for access.I don't want to rely on bilge pumps to remove rain water or nasty wash down water.Everything should go out the scuppers.
Keep the ideas coming. Thanks

Bushwacker 01-02-2008 12:33 AM

Re: Questions for spetre owners
 
Don't know how much of a gap you have between hatch and deck, but here's an idea based on what I've observed with my gas tank hatch, which was originally caulked/sealed with silicone. I pulled up the hatch to inspect the tank right after I got the boat. Most of the silicone stuck to the hatch and not the deck. What if you put some heavy paste wax on the deck around the hatch, clean the edge of the hatch real good with acetone, and then caulk it with silicone. The silicone should not stick to the wax, but if it sticks well to the sides of the hatch (you could even sand it a bit after cleaning), you'd basically have a "formed in place" gasket that might keep most of the water out. Could also put some thin (~1/16") shims under the hatch before you caulk it, then there would be a little compression on the resulting "gasket" after you remove the shims. Not as elegant a solution as Capt. Chucks, but a whole lot easier!

htillman 01-02-2008 03:13 AM

Re: Questions for spetre owners
 
I have sealed these hatches with silicone with success. They must be clean and silicone applied to the deck ledge. Then install the hatch. I tape the hatch and deck area and then fill the gap with silicone and wipe/push down with my finger, keeping it clean as I go, dipping your finger in water after cleaning and working the silicone makes it easy. You cannot let the silicone skin over. Or you will have a mess. I have learned a good pointer on the website, lie 80 pound mono in the bottom silicone so removal of the hatch at a later date will be simpified.

abl1111 01-02-2008 11:54 AM

Re: Questions for spetre owners
 

Bush - I don't know how durable or effective that would be ? I understand what you're describing, but sand, fish guts etc might make that set-up breakdown quick.

I always thought that a thin, durable, closed-cell, adhesive, rubber gasket or weatherstrip placed on the deck's horizontal lip ( where the hatch closes ) would be the best option to make a water-tight seal. That, along with a strong latch - which I already have installed.

Note: My hatch used to be screwed down, covering a 2nd fuel tank. I removed the tank and made the area for needed storage. I put the hatch on a SS piano hinge and put SS latches for positive closure. Works great, but I really want to keep my bilge dry. I have played with the idea of using the area for a fish locker and adding a macerator to the hatch drain and pumping it all over board - this would keep the bilge from getting water, but then this storage/locker would fill with rain water !?


ET3 - you're describing to silicone the hatch down permanently - or at least till you cut it back out. We're looking for a way to keep the hatch in use and waterproof.

Bushwacker 01-02-2008 04:10 PM

Re: Questions for spetre owners
 
Quote:

Bush - I don't know how durable or effective that would be ? I understand what you're describing, but sand, fish guts etc might make that set-up breakdown quick.

The silicone is still stuck to my tank hatch 36 years after it was installed! Of course I don't open it often, but I left the screws out so I can quickly open it to check for leaks around sending unit gasket after I fill the tank. I used some foam weatherstrip gasket around my cabin hatch and it didn't hold up that well, although it was some cheap stuff from HD. . maybe there is better stuff available now. I think the silicone would be a lot more durable as long as it sticks well. Maybe could create an additional secondary seal by adding a thin bead of Si around bottom lip of hatch after the stuff on the sides cures.

abl1111 01-02-2008 06:31 PM

Re: Questions for spetre owners
 

I always wanted to try something:

Clean the that lip well w/ acetone, sand it nice and flat, clean again, then add a uniform 1/2" high x 1/2" wide bead of very durable silicone, and while still wet, place a flat wood 'jig' over all (4) sides of the lip - almost like a 'long paint stick' ( the bottom of this thin wood jig would have wax paper on it ). Then, press very this lightly to get a uniform flatness - not smooshed flat! - let it dry. Then remove the waxpaper/wood and that would be a built in gasket ?

Does this sound like it would work ?

Bushwacker 01-02-2008 07:22 PM

Re: Questions for spetre owners
 
ab1111 - it'd probably work pretty well - same basic idea as I had, only you're saying to apply the silicone to the deck opening, which would provide more surface area to stick to than the hatch. However instead of your wood sticks, why not just coat the bottom and sides of tank hatch lip with some paraffin-type wax like Strick uses for his molds. Then your silicone "gasket" is literally molded to the tank hatch!

One caution about thickness of the silicone "coating" - something I learned from 35 years in the aerospace business is that bond strength of any coating is inversely proportional the thickness. In other words, the thinner that silicone "gasket" is, the better it will stick and the more durable it'll be!

jongolds 01-03-2008 11:07 AM

Re: Questions for spetre owners
 
This may be silly but has anyone ever thought of using the same type of gaskets you see on refrigerator doors or some other sort of magnetic gasket. I'm not sure how you'd actually do it but it seems like one of the tightest seals you see for a frequently opened door is on your refrigerator so why not. If you figure out the details be sure to let us know how though.

abl1111 01-03-2008 11:23 AM

Re: Questions for spetre owners
 

Might have to try it this Spring. One area that concerns me w/ this application is the hinged side; that edge will not 'come down' onto the dried silicone seal so much as it will 'sweep' into the silicone to close.

As for using a pc of wood as a 'flattener' vs using the hatch itself - there seeme to be pros and cons to each.
- Using the hatch itself, I think there'd be a lot of extra ooze of silicone around the seal ( I can't make out if this would give either a better seal, or be a dirt collector )

I don't think any of the gasket/silicone fixes are perfect because a lot of crud and especially sand would get into the space between the hatch and the deck ( as it does now )and eventually the silicone seal area and over time, as you walk on the hatch, it will slowly but surely dig through the silicone seal...

htillman 01-03-2008 12:55 PM

Re: Questions for spetre owners
 
The refrig seal is a good idea, the major obstacle would be the metal to attact the magnet, most non-corrosive metals are not attracted to magnets. Ones that are usually include rust. I will work on this with my guys that build sound enclosures to see it they have anything.

riptide 01-03-2008 06:55 PM

Re: Questions for spetre owners
 
I would stay away from silicone for sealing hatches.It just doesnt hold up.I have used Life caulk with good results.It can be sanded and painted when it cures and last a long time.

jongolds 01-03-2008 07:59 PM

Re: Questions for spetre owners
 
Another option would be to use some other sort of gasket or waterproof weather stripping and then secure the hatch with hardware that provides some degree of compression to ensure a good seal. I'm picturing something like the quick release cam locks on a bicycle's wheels. Seems like the fiberglass work to recess something like that would suck though and it would still be a place for dirt to collect.


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