1968 SPORT 13 Circular cover in bow locker

Repair or modification of Boston Whaler boats, their engines, trailers, and gear
Johnfinn99
Posts: 6
Joined: Wed Jul 03, 2019 10:14 am

1968 SPORT 13 Circular cover in bow locker

Postby Johnfinn99 » Fri Jul 05, 2019 4:01 pm

Good afternoon. I am restoring a 1968 Sport 13. This is my thisrd restoration of a classic Whaler. As I'm sanding the interior and dealing with the much loved "spider cracks" i am wondering:

Q1: what is the purpose of the circular cover in the bow, just ahead of the anchor locker? It is about 6-inches in diameter and sealed.

It purpose is bugging me to know. I'm sure someone here must know. Thanks

jimh
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Location: Michigan, Lower Peninsula
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Re: 1968 SPORT 13 Circular cover in bow locker

Postby jimh » Fri Jul 05, 2019 4:34 pm

The feature of the 1968 SPORT 13 you describe is probably the SPRUE or a circular cover over the sprue. The sprue is the hole via which the liquid which expands into foam was introduced to the interior of the hull; as the liquid expands to become foam, and and expanding foam is expelled via the sprue.

SPRUE, noun: (https://www.merriam-webster.com/dictionary/sprue)
--the waste piece on a casting (as of metal or plastic) left by the hole through which the mold was filled;

--the hole in which a sprue forms

Johnfinn99
Posts: 6
Joined: Wed Jul 03, 2019 10:14 am

Re: 1968 SPORT 13 Circular cover in bow locker

Postby Johnfinn99 » Fri Jul 05, 2019 5:34 pm

I figured it must be something like that...thanks, now I know.