Fuel tank compartment

[eggsuckindog]

I washed it some as it had crud all over it and the water went down around the foam somewhere. This is a newer tank and the foam is probably fine, they may have put some in when the tank went in but hard to figure how to check it. I'll maybe slide an 1/8 tube down there to check, good idea.

[Tashmoo2]

My 1985 18 ft has a 1" hole in each aft corner of the tank coffin. My tank was enclosed in foam inside the coffin

[Callipygian]

Were the original tanks foamed in over the top as well?

[CaptMick]

My foam was on the sides only. It was also foamed around the fill hose from 4 inches below the cap to the front of the forward wall of the compartment. What a pain to get the hose out. But the tank itself was very easy.

[Callipygian]

What is the best way to determine if you have an original tank from the 70's?

[eggsuckindog]

they all have a sticker on top somewhere under the crud LOL - size - date of manu

[adamcannon]

My coffin box didnt have any drain in it at all when I took it out. I am going to drill a bunch of holes in the botom of mine before it goes back in the boat. I also put a layer of glass on my tank to create a bonded barrier between the foam and aluminum. I hope this will prolong the life of my tank.