to vent..or not to vent?

M

MonkeyBoy

Seaman Apprentice
Joined
May 21, 2002
Messages
30
Am I supposed to have the vent open on the gas can of for my outboard while operating it? If I do not have a cap with a vent in it, would loosening the cap work?
 
12Footer

12Footer

Fleet Admiral
Joined
Mar 25, 2001
Messages
8,217
Re: to vent..or not to vent?

yes, the tank must get air to replace the fuel you burn.<br />If you don't have a vent screw on the cap,and there is none on the tank, you must be talking about a built-in tank, which has a vent tube all it's own.
 
A

alcan

Commander
Joined
Dec 14, 2001
Messages
2,505
Re: to vent..or not to vent?

Lucky<br />Since I don't know which motor your running, I will have to guess. If you have a fuel pump, Then yes the tank must be vented. Some tanks vent by turning the cap half way off. It works like a raidiator cap. Seal, vent, remove.
 
S

smalloutboardsarecool

Petty Officer 2nd Class
Joined
May 11, 2002
Messages
171
Re: to vent..or not to vent?

what puxxles me is it ok to leave it closed, when it is sunny and warm outside. will this coase something bad to happen?
 
JB

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: to vent..or not to vent?

Tank vents should be opened before attempting to start an engine. <br /><br />Some feel that they should be closed to prevent condensation otherwise. <br /><br />I keep mine open all the time unless there is risk of fuel spillage. . . then I close them.
 
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