purrfecttremor
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- Dec 22, 2007
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Can't wait to see the progress and hopefully pics! Congratulations Brian your kids are going to love it!
Congrats to you for getting that 25Howard/24'6 Spectra:thumbup:
Give her a bath and take some pictures....I always wanted to see more of the boat.
How clean is the gel and interior?
My 1972 Spectra 24 [ friend owns it ] still has the fiberglass saddle tanks.No issues what so ever.Same goes for my 1976 spectra 20, only the 1978 19 has the saddle tanks.The fiberglass tanks have fire retardant properties,don't know if Howards are different?! If you want to replace them anyway, cutting the top of the tanks,placing aluminum ones as suggest sounds the way to go.
The 5th wire, blue I think, is for trailers with electronic brake lockout when tow vehicle put in reverse.In no expert so in curios. I had to buy a 5 flat adapter and trailer has an extra wire. Is this different?
If you don't want to get after the tanks right away (I'm pretty sure you already know this) Just run AV or racing gas in them. Drain when done.
Yeah, once they're gone they're gone....Hmmm???... Seems to me that Carl knew that the tanks had to be replaced so he may have already discovered the black shit that appears in the carburetor,...coats the intake runners,...sticks to the valve stems...So I don't think I would just throw some avgas at it without consulting with a couple of Carl's immediates...to see what they might know about the situation???...
Shan...doesn't the gas eat the fiberglass and it turns into a gel? The gel is the issue in the engine. Replace the tanks. Not worth the other issues.
Shan...doesn't the gas eat the fiberglass and it turns into a gel? The gel is the issue in the engine. Replace the tanks. Not worth the other issues.
Regarding the tanks, I read that Uncle Carl said they needed to be replaced.
I haven't gotten deep enough to verify that yet, not sure I can really, short of filling them and see if they leak, or contaminate the fuel.
Brian
words of wisdom and food for thought
I've had the pleasure of riding in that boat and it is a sweet time capsule, Congrats!! :thumbsup
LOTS of boats with tanks in the gunwales. That's where mine are and I have a fairly deeper Vee. Specially for only being 18'. I never feel the fuel effect CG or anything like that.One thing I was thinking....carrying 40 gal of fuel up high in the gunnels instead of in the floor....
I know it is a school bus and not a Ferrari, but it seems the boat would be much happier with the weight down low.
What say ye?
Btw she does have a big blower, I don't know how I missed it.....no hoses at all though.
Brian
Gas does not eat fiberglass, the ethanol in modern fuels does.My 24 spectra has high compression LS6 engine and never saw low octane fuel that contains 5,10 or 15% ethanol.Chevron premium is your friend.:thumbup:
ethanol is also bad for aluminum tanks,go stainless if that's what you want.
Brian, my 24 Spectra rode like a train on rails, no handling problems in turns,so keeping the saddle configuration won't be an issue unless you throw 1500HP into the beast.One thing I was thinking....carrying 40 gal of fuel up high in the gunnels instead of in the floor....
I know it is a school bus and not a Ferrari, but it seems the boat would be much happier with the weight down low.
What say ye?
Btw she does have a big blower, I don't know how I missed it.....no hoses at all though.
Brian
Brian, my 24 Spectra rode like a train on rails, no handling problems in turns,so keeping the saddle configuration won't be an issue unless you throw 1500HP into the beast.
Ethanol only attacks certain alloys of aluminum, 5000 series alum is alloyed with magnesium and is highly corrosion resistant, not like 6000, or 7000 series aluminum, which while stronger, are not as corrosion resistant (fittings).
Fuel tanks are made from 5000 series, mainly alloy 5052. Ethanol does not readily attack this alloy. There are literally 10's of thousands of boats running around with IMCO 5052 aluminum tanks, i have never seen one corrode away from the inside due to fuel. The only time i've seen them fail is from something rubbing on the outside, or when the outside of the tank is exposed to lots of moisture but not fully submerged (ie the foam the tank is set in is saturated) and it never dries and electrolysis starts doing it work over the coarse of years. Mainly boats that are sitting in the water for extended times and always have water in the bilge, and it's a keel tank. But this is pretty rare.
5052 Aluminum tanks are perfectly fine for ethanol.
Here is a crappy quick pics from early this morning.
Always wondered what the twin engined 24 Spectra [ black ] that Greg Shoemaker restored do speed wise and if it had belly tank, or saddles? Anyone know the whereabouts or ownership of that boat,now?Not looking to change power. This is a school bus, not a hotrod.
After seeing the one in TN I think, that had 1100 HP that went 80. Cemented any ideas about that.
Brian
I like the other pics better.
I have the original marine grade aluminum belly tank in my 26yr old Mirage,no problems so far, running reg 87 oct with the 6.2 mercs.:thumbup:Some people fabricate their own tanks not bothering with what grade it is.If my tank start corroding,I'll build the new one out of s/s.
get out the vacuum and wash bucket...Have 2forcefull over for the day and he will have that thing buffed to perfection lickity split!!
Not looking to change power. This is a school bus, not a hotrod.
After seeing the one in TN, I think, that had 1100 HP and went a blistering 80. Cemented any ideas about that.
Brian
... I have a call into Fred Thompson who I bought my Spectra 24 from...Fred ran Spectra Marines Burbank Marine store and Fred knows these boats...I'm going to ask him what is the optimum in fuel tank placement...
... I can tell you this about adding horse power to those boats...If you do add big horse power the engine has to be moved forward an exact amount... I realize you are not planning on adding big horse power now but I will find out what that measurement is anyway so you can file it away in your memory bank... You never know???...
Thank you, I appreciate that.
I have done this to a Schiada and it worked slick..just cut the top out of the tanks...clean accordingly and take really good measurements to build the new ones...you can foam them in if you feel the need...but just cut the fills out of the fiberglass top you cut out and place them exactly the same in the new tanks...I then put the fiberglass top back on after grinding about 2" on either side of my cut...laid it back in and glassed the top back on...if you need a hole for the sending unit...just cut it out.
My feeling today is these older boats have too big of tanks in them anyway...it used to be that the fuel could sit in them over the winter or summer and it didn't matter....today we need to keep FRESH fuel in them because it goes bad so fast...so a little less fuel capacity with new tanks is not going to matter much...JMO
... OK here we go about the placement of the fuel tanks... Fred has had numerous Campbell's and numerous Spectra's...his feeling from his experience with the fuel tanks in the floor the boat was more stable...With gunnel tanks the boat had a tendency to rock on top of the water,...side to side and if you were to run out of fuel in one tank,...the boat would tilt...
I feel the same. Fuel in the belly is a better idea.
I can make whatever I need anyway. the shitty part is chopping up the floor to R&R them.
Brian