Check valve in the fuel pick up?

sstaz

Seaman
Joined
Aug 10, 2008
Messages
63
Just wondering why boat manufacturers would put a check ball in the fuel pick up on boats with permanent fuel tanks.
 

dsiekman

Senior Chief Petty Officer
Joined
Jul 7, 2010
Messages
798
Re: Check valve in the fuel pick up?

If you have a mechanical fuel pump it keeps fuel at the ready so you don't have to crank so long. The check valve on my last boat went out and I would have to crank for what seemed like forever to get it to fire if it sat for more than a day.
 

superbenk

Commander
Joined
Oct 27, 2008
Messages
2,033
Re: Check valve in the fuel pick up?

I don't think that's entirely correct. It's an anti-siphon valve that keeps fuel from siphoning into the bilge if the fuel line is broken between the tank & the pump. It's a CG required safety device.
 

sstaz

Seaman
Joined
Aug 10, 2008
Messages
63
Re: Check valve in the fuel pick up?

Thank you for the replies, the anti-siphoning sounds like the logical reason.
 

180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: Check valve in the fuel pick up?

superbenk it it - it is a required safety device - has nothing to do with extended cranking - even though it may help in some situations.
 

dsiekman

Senior Chief Petty Officer
Joined
Jul 7, 2010
Messages
798
Re: Check valve in the fuel pick up?

Thanks for the correction, guys. You learn something new every day.
 
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