Reply
 
Thread Tools Search this Thread
 
Old 23 April 2011, 08:26   #1
Member
 
Country: USA
Town: Western Mass
Boat name: Typhoon
Make: Avon
Length: 4m +
Engine: 25 hp Yamaha
Join Date: Nov 2010
Posts: 16
Dumb question of the day!

Seems like I should know this, but I do not. How do I properly use the vent on my fuel tank?
I have a 6 gallon Moeller plastic tank. Do I open the vent before I start the engine and leave it open for the duration of the trip? Or do I start the engine and open the vent later, or do I not open the vent at all?
Thanks
__________________

__________________
kingbiscuitboy is offline   Reply With Quote
Old 23 April 2011, 08:29   #2
RIBnet supporter
 
gotchiguy's Avatar
 
Country: UK - England
Town: Dinard, Brittany
Boat name: Into the Red
Make: Osprey Vipermax
Length: 7m +
Engine: Evinrude E-tec 250HO
MMSI: 235 076 114
Join Date: Apr 2009
Posts: 1,948
RIBase
Quote:
Originally Posted by kingbiscuitboy View Post
Seems like I should know this, but I do not. How do I properly use the vent on my fuel tank?
I have a 6 gallon Moeller plastic tank. Do I open the vent before I start the engine and leave it open for the duration of the trip? Or do I start the engine and open the vent later, or do I not open the vent at all?
Thanks
Vent stays open the whole time that the engine is in use. Both starting and running. Close it when not using it to prevent foreign objects getting in or the petrol evaporating


How else does the air get in to replace the used fuel!
__________________
gotchiguy is offline   Reply With Quote
Old 23 April 2011, 08:54   #3
Member
 
TonyC's Avatar
 
Country: UK - Wales
Make: XS // Delta
Length: 6m +
Engine: 60hp // 2x90hp
Join Date: Feb 2007
Posts: 213
Quote:
Originally Posted by gotchiguy View Post
Close it when not using it to prevent foreign objects getting in or the petrol evaporating
unless it's a very hot day, when you must leave it open slightly, otherwise the tank will 'expand' in the sun
__________________
TonyC is offline   Reply With Quote
Old 23 April 2011, 09:40   #4
Member
 
Country: USA
Town: Western Mass
Boat name: Typhoon
Make: Avon
Length: 4m +
Engine: 25 hp Yamaha
Join Date: Nov 2010
Posts: 16
Thanks

Thanks for the help Gents.
__________________
kingbiscuitboy is offline   Reply With Quote
Old 25 April 2011, 11:33   #5
Member
 
Peter_C's Avatar
 
Country: USA
Boat name: Uh...a kayak?
Length: 4m +
Join Date: Dec 2009
Posts: 1,485
I store mine closed but barely. I spin the vent until it makes firm contact, then back off and reset again to the point when I feel contact and stop. This way it can vent at a low pressure since we have varying temperatures in sunny...no rainy (Today) California. My fuel tank has a gas gauge and the nipple on it, which then requires a gasket around the unit, which is held down with screws. If the tank is sealed too much the gasket will be the first thing to fail.

One of the keys is any vessel/vehicle stored for extended time periods needs to be store with a FULL FUEL TANK! This leaves a small air space in the tank, so less expansion and contraction that can force the fuel vapors out, and moisture in, which is really bad.
__________________
Peter_C is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 04:18.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.