What is this on my Moomba mojo

[hammj1]

Hello everyone,

I am wondering what this Allen head part is on my boat next to the fuel cap. Is it a vent or something I should open while fueling?

Thank you!

Jon

[larry_arizona]

That is the vent to your gas tank. Without it, you wouldn't be able to fill it.


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[BigOrange]

Right, don’t have to do anything with it when fueling.

[Holdmybeer]

If you over full your tank fuel will leak out. Never did this on my mojo but used to happen all the time on my old i/o.

[hammj1]

Thank you all for the answers, I kinda thought that was what it was for. When fueling up my mojo I always struggle to get a full tank because the pump always auto shuts off. Kinda frustrating to say the least.

[HFarr]

I see you're an engineer, so to make it clear to you, that is the upper mount for the fuel systems storage tank atmospheric equalization control conduit. [emoji3]

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[HFarr]

....and I asked that same question on here a couple of years ago. LOL!

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[hammj1]

Haha good to hear I wasn’t the only one. Kinda felt stupid to ask lol. And thanks for speaking my language!

[HFarr]

Haha good to hear I wasn’t the only one. Kinda felt stupid to ask lol. And thanks for speaking my language!I felt the same way. I knew it was a vent, but it also looks overkill. The hex key fitting makes it look like you're supposed to open and close it. Like it has a seal or something. But it doesn't.

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