Placement of fuel breather
 

Hi,
Recently got a new boat (Hereschoff 28) and in poking around found
that there is no breather off the fuel tank, just a 10mm hole in top of
tank! Any suggestions on best position to put breather.

Cheers

Is this a gasoline tank or a diesel tank ???????????

For diesel just a vent to the side deck and as high as possible (such
as through the side of the deck house ... covered with a small vent
cowl..
For gasoline it should be definitely -outboard of the hull- so that the
vapors 'drain' to the water instead of back into the boat, .... usually
at the stern AND the opening should be covered with a finemesh
stainless steel screen to prevent flame propagation down through the
vent line into the tank .... and covered with a small cowl. A gasoline
tank vent without a 'flame arrestor' in the vent line is a BOOOOOM
waiting to happen.


In article .com, MC
wrote:

Hi,
Recently got a new boat (Hereschoff 28) and in poking around found
that there is no breather off the fuel tank, just a 10mm hole in top of
tank! Any suggestions on best position to put breather.

Cheers

Diesel, sorry forgot to mention that.

Thanks

OK - for diesel also consider to add a desiccant air filter on the vent
line to adsorb water vapor when the tank 'breathes' ... will prevent
water condensation and premature aging of the fuel. You can get these
cannisters from an air compressor supplier. They contain silica gel
with a bit of colored silica gel that turns from blue to pink when
saturated with water and need to be regenerated .... and then simply
put the gel in an oven at 350 deg. for 6 hours to regenerate. Then
you dont have to keep a full tank of diesel fuel. Diesel only has a
shelf life of about 6 months at 30 deg. C ... so the less you store the
less will go 'bad' and the less problems youll have with particles,
fungus growth, blocked filters, etc. etc. etc. etc.


In article .com, MC
wrote:

Diesel, sorry forgot to mention that.

Thanks

Rich Hampel wrote in
:

Diesel only has a
shelf life of about 6 months at 30 deg. C

Yikes! I've been running on much older diesel than that for years!

--
Larry

In article , Larry
wrote:
The following URL ought to be of benefit for shelf life of diesel
...... and should also convince you to change out those copper fuel
lines for stainless.with flared connectors.
http://www.bp.com.au/fuelnews/ADF1402.pdf


Rich Hampel wrote in
:

Diesel only has a
shelf life of about 6 months at 30 deg. C

Yikes! I've been running on much older diesel than that for years!

Rich Hampel wrote in
:

http://www.bp.com.au/fuelnews/ADF1402.pdf


Thanks.

--
Larry