14' Aluminum boat question.

[RickFortin]

Hi, first time posting here.

I tried to do a search, but I couldn't find any answers.

I am finishing a 1970 14' Crestliner Aluminum row boat. The boat's information tag is gone.

The exact measurements are length 13' 8" Widest point is 58" transom is 16" deep, front is 26" deep

I am trying to find out what size gas motor I can put on it, and what the max weight capacity is for the boat.

I am also spraying the entire inside with rhino liner, and I have already bought self etching primer for the outside, can anyone suggest a good, middle of the road expense wise paint for the bottom/sides?

Thanks in advance for taking time to help me.

 

[m casey stock]

Re: 14' Aluminum boat question.

Welcome to iBoats,

There is a formula for getting that information you seek. I'll find the link and post it for you if one of the other guys doesn't post first, there are a lot of great guys here to help, so you've come to the correct place. Sounds like you are starting off right with the self etching primer, as far as the finish paint, there are so many good brands out there, you'll just have to decide what price range you are looking at and pick one in your range. If you used any type of stripper on the boat be sure that you have neutralized any residue or the paint wont stick. I'll get back to you as soon as I can

 

[m casey stock]

Re: 14' Aluminum boat question.

Here is one link, I'll see if I can find a more simple formula LOL

http://www.gpo.gov/fdsys/pkg/CFR-2004-title33-vol2/pdf/CFR-2004-title33-vol2-sec183-53.pdf

I'm not sure this link is any more simple, but it is a full of good info.

http://www.uscgboating.org/regulations/boatbuilder_s_handbook/safe_subc_parta.aspx

 

[m casey stock]

Re: 14' Aluminum boat question.

Okay, this is a little better.

Hopefully this guide will help you calculate the maximum amount of H.P. your boat can be insured for.
- This is to only be used as a guide.
- You can round your final HP number to the closest multiple of 5. (31 HP would round to 30 HP. 33 HP would round to 35 HP)


Step One - Compute your Factor

A. Length of Boat x Transom Width (measure in feet: 14, 15.5,16, etc).



Step Two - Compare your factor to H.P. rating

A. 0-35 = 3 hp
B. 36-39 = 5 hp
C. 40-42 = 7.5 hp
D. 43-45 = 10 hp
E. 46-52 = 15 hp



Step Three - If your factor is over 52 (Choose only A or B)

A. With Remote Steering (steering wheel) and at least 20" transom height

Maximum HP = (Your factor x 2) - 90

Example: 19' 6" long , 7 feet wide = (19.5 x 7 x 2) - 90 = 183 (Round up in multiples of 5. This boat's max is 185 hp).


B. With Tiller Steering (hand or extension) or less than 20" transom height (Choose only 1 or 2)

1. Flat bottom, or hard chined boats (hull has hard angles)

Max HP = (Your factor x 0.5) - 15

2. Soft chine, rounded hulls

Max HP = (Your factor x 0.8) - 25


Conclusion

I hope this has helped you all who are looking for max hp ratings. If your boat is insured, make sure to check with your insurance company for any restrictions.

This guide was found at NewBoatBuilders, which was ultimately used from "Title 33-Code of Federal Regulations-Subpart 183.53".

 

[kfa4303]

Re: 14' Aluminum boat question.

Most 14' aluminum boats are going to max out at around 40 hp 2-stroke weight capacity at most. 4-stroke motors are generally quite a bit heavier, so you may only be able to go up to about 30 hp. I can get about +/- 20 mph on my 14' with a vintage 20 hp Johnson which only weighs about 80 lbs, but a good 10 hp is often enough to get most 14' tinnys on plane. A lot of it will have to do with weight distribution and hull type as well.

 

[Bob_VT]

Re: 14' Aluminum boat question.

Welcome to iboats.

All of the boat formulas for HP are also based on steering.

If your boat is an open fishing boat for a tiller motor then the rating will be at about 20 hp max. You will find any modern 9.9 or 15 will work just fine.

A cheap paint for the exterior would be a rustoleum enamel over a high quality primer such as zinc chromate.

I STRONGLY ADVISE AGAINST any bed liner in an older aluminum boat. It will NOT adhere properly to the aluminum and will be a potential future nightmare for any repairs. It will not prevent leaks and only lighten your wallet. For leak repairs and prevention use Gluvit.

Take a look in the restoration section of the forum for aluminum boat repairs, painting and tips.

 

[RickFortin]

Re: 14' Aluminum boat question.

Excellent.

The boat is 13'8"
the widest part of the transom is 4'
I rounded the length to 14' which gave me
14x4=56. which on the scale = 15HP.

Thank you!
Now I have to figure out what the max weight capacity is.

As far as paint. someone told me to use acrylic. But I have no idea what type to use.

 

[Solittle]

Re: 14' Aluminum boat question.

Read Bob's post on paint -

 

[m casey stock]

Re: 14' Aluminum boat question.

I have a 14ft Duracraft (early 50's) and the PO said he came across something on the boat that stated max rating 25 hp. Don't know why, but he said he took it off and has since misplaced (lost) it. Anyway, I was talking to Kim Ward the other day (Son of one of the founders of Duracraft) And he laughed and said back then they had no rating and that whatever the PO found wasn't original to the boat. I think the early 70's is when they made that a requirement. Anyway He also said because there were no regulations back then you pretty much did what you wanted and that those 14ft aluminum runabouts did pretty well with a 40hp on them. I just Chuckled and said "I bet they did" Anyway, my son has a late 50's early 60's aluminum runabout with a 25hp on it and it runs great, planes out nice and tops out in the mid 20's mph. I'm still working on mine, but I plan on putting a 25hp on mine as well.

 

[RickFortin]

Re: 14' Aluminum boat question.

Thank you Bob. I will order some of the Gluvit. It seems all my ideas turn into bad ones.

 

[RickFortin]

Re: 14' Aluminum boat question.

Read Bob's post on paint -

I searched for the thread. I couldn't find it.

 

[Bob_VT]

Re: 14' Aluminum boat question.

Well, I will move this over to the restoration section for you

I also have a 14' tiller semi V Starcraft in my fleet and it is rated for a 20 hp. It flys with an 18 but I also have a 9.5 hp I use on it.

Read the tips and how to's in the sticky at the top of the restoration section. http://forums.iboats.com/showthread.php?t=288451

 

[s freud]

Re: 14' Aluminum boat question.

I searched for the thread. I couldn't find it.

He meant post #6 in this thread. It seems many of the guys use Rustoleum paint as a good economical paint. It is also what I used for my self etching primer. I was happy with how it went on (I just did my transom and used spray paint).

 

[RickFortin]

Re: 14' Aluminum boat question.

He meant post #6 in this thread. It seems many of the guys use Rustoleum paint as a good economical paint. It is also what I used for my self etching primer. I was happy with how it went on (I just did my transom and used spray paint).

I have rust oleum self etching primer. I am not sure what to use for paint though. I am going to order the Gluvit. No idea what to paint over that. Do I need acrylic? oil based? or just a rust oleum marine paint?

 

[kfa4303]

Re: 14' Aluminum boat question.

Basic rule of thumb is to clean the surface by sanding any old paint away and then wiping down with acetone. Next, apply a light coat of Zinc Chromate self-etching primer and let dry. Then apply top coat(s). It's best to use the same brand of paint and primer to avoid any unintended reactions. Lots of folks have had great success with Rustoleum Professional Oil Based enamel for both their hull and wooden components, but there are many different brands available.

 

[RickFortin]

Re: 14' Aluminum boat question.

Thank you to everyone who has helped me. You guys are awesome.

 

[s freud]

Re: 14' Aluminum boat question.

What KFA said above. It is available at Walmart, HDepot, Lowes, Ace, etc.

 

[Woodonglass]

Re: 14' Aluminum boat question.

The last link in my signature below has some good info on painting your boat "On the Cheap" It talks about using Majic Paint products sold at Tractor Supply stores but you can also use Rustoleum Oil Based Enamel, Valspar or any other quality Oil based Alkyd based enamel paint with the added Hardener. The mix formula, application technique etc.. is all the same.

 

[m casey stock]

Re: 14' Aluminum boat question.

Excellent.

The boat is 13'8"
the widest part of the transom is 4'
I rounded the length to 14' which gave me
14x4=56. which on the scale = 15HP... Thank you!

You are most welcome, 15 hp should do just fine.

 

[RickFortin]

How much Gluvit

How much Gluvit

I am planing on doing the same thing with my 14 boat. Should I just put the gluvit around the rivets and the ribs on the inside of the boat? Or should I do a full cover of the inside? Also, should I do the entire transom, or just the seems?

Thanks.