'77 Howard GN 20'

[Eliminator21vdrive]

Nice as always.

Do you weld the bridges/spacers to the external tube as well?

 

[cj222]

Nice as always.

Do you weld the bridges/spacers to the external tube as well?

Thank you! Yes they are welded to the inner pipe in several sections to dam up the water and spill over on the top side to keep the entire pipe surrounded by water. I leave a small gap on the bottom to allow a little bit of the water to pass by.

 

[cj222]

Nice as always.

Do you weld the bridges/spacers to the external tube as well?

Only the inner

 

[Eliminator21vdrive]

Thank you! Yes they are welded to the inner pipe in several sections to dam up the water and spill over on the top side to keep the entire pipe surrounded by water. I leave a small gap on the bottom to allow a little bit of the water to pass by.

You are referring to the rings right?

 

[cj222]

You are referring to the rings right?

Yes. I cut them to size and in half, then weld them to the inner pipe leaving a small opening on the bottom so hot water doesn't get trapped at the bottom.

 

[HAP]

Yes. I cut them to size and in half, then weld them to the inner pipe leaving a small opening on the bottom so hot water doesn't get trapped at the bottom.

So, you went "dry tails"? Were you concerned about possible reversion issues? They look great!

R,
HAP

 

[cj222]

So, you went "dry tails"? Were you concerned about possible reversion issues? They look great!

R,
HAP

Thank you!
Yes I went dry exhaust to the transom not for concern of reversion as much as just to keep the exhaust flow as dry as possible without actually doing full dry pipe thru hull tails.

 

[cj222]

Had the tailpipes and transom tips polished. Got the transom tips installed and sealed up. Also finished mocking up my drive shaft tube.

 

[cj222]

Mounting the v-drive support brackets

 

[MOUZER]

how bad azzzz is this boat............love it...............

 

[cj222]

how bad azzzz is this boat............love it...............

Thank you!

 

[wzuber]

Awesome work Nick....per usual. Your creativity and talent shine bright here.

 

[cj222]

Awesome work Nick....per usual. Your creativity and talent shine bright here.

Thank you bud

 

[cj222]

Started building my fuel tanks. Started with a 60" x 144" x .125 sheet of 5052 aluminum. Had my friends in the shop next to me help me bend them up on their press brake after I did my layout and used their sheer to cut the flat pattern out. These should be approximately 28 to 30 gal each.

 

[wzuber]

Started building my fuel tanks. Started with a 60" x 144" x .125 sheet of 5052 aluminum. Had my friends in the shop next to me help me bend them up on their press brake after I did my layout and used their sheer to cut the flat pattern out. These should be approximately 28 to 30 gal each. View attachment 1434888 View attachment 1434889 View attachment 1434890 View attachment 1434891 View attachment 1434892 View attachment 1434893

Nice, seems you went a little heavier Guage then most? I think most of the other mfg.'s use .090". What did you use for slosh control?

 

[cj222]

Nice, seems you went a little heavier Guage then most? I think most of the other mfg.'s use .090". What did you use for slosh control?

Thank you! I went with this thickness for durability. I used 3/16" material for the end caps which will be used to secure the tanks to my gunnel supports. I have noticed after doing welding on a lot of IMCO tanks, adding extra fitting and building new tanks to replace old belly tanks, that most of them are built using .125 thick material for larger capacity. The walls don't flex as much and you can get a really nice weld. I chose not to run a baffle in these tanks.

 

[cj222]

Tanks are ready to bolt in.