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Old 06-04-2013, 09:23 PM
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Join Date: Apr 2013
Boat: 1998 Mastercraft Maristar with a Corvette LT1
Location: Northeast
Posts: 150
Quote:
Originally Posted by SP Maristar View Post
My cap sits up a bit since the o-ring makes contact before the cap does. I will let you know about the size when i get one. I am not sure about the sealed system. I believe prostars have a vent. Perhaps someone else can weigh in.
Quote:
Originally Posted by FrankSchwab View Post
Mine sits up a bit (if it went all the way down, it would hit the heads of the screws that hold it into the boat; they stick just slightly above the flat plastic surface of the filler tube).

Remember that the cap is also the vent for the tank, so blowing through it you may be hearing the air going through the vent...
I see the cap has a vent in it, it seems to let air in easier than out. I'm not sure if it was originally a one way check valve or not.

So I guess I'm going to have to assume the o-ring is sealing.

Thanks, Steve
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