Fuel tank vent/breather extension

[Gold Stalker]

Hi, I was fitting a rear diff breather extension and noticed the fuel tank breather. On other forums it seems that this should also be extended to a high and dry point but I have not found mention of this on this forum.
I have not yet examined it but I was thinking I could reuse the existing end cap on an extension.
Any advice?

[Gold Stalker]

Hmm.... hope we are not all running around sucking water into our fuel tanks.

[Unluckyalf]

I am no expert but I wold guess that a fuel tank breather would be to allow for expansion of the fuel more than anything else and to prevent over pressurisation of the tank. I don't think that contraction is really catered for, hence the vacuum effect when you open the fuel filler. Doubt you would be getting water ingress through the breather

[amitch888]

Can't say it's anything I've ever looked at or thought about it. Would have to be reasonably deep water. Guess it hasn't been a problem since your generally moving forward through water creating the bow wave. Certainly wouldn't be a bad thing extending if you feel the need to?

[Gold Stalker]

Yeah, you probably get a bubble there when moving. I guess its a question of how much protection you want. I think I'll extend mine because it looks pretty easy to do.

[Bushbound]

When I fitted my Outback Acessories LR tank, they recommended to just place the breather hose up into the chassis which I thought was a bit ordinary, so I fabricated a bracket with BSP socket and fitted hose tail on the top and sintered bronze breather on the bottom and attached it midway up the head board of my ute, then ran the hose up and looped onto the tail sp water cant get in. Perfect.
Geoff

[dano85]

Where is the breather located

[Gold Stalker]

Where is the breather located

my is (at the moment) sitting on the top of the fuel tank.

[Cruiserdog]

The breather goes both ways, expansion and vacuum. I found this out the other day when i did my diff breathers. I ended up extending the fuel breather and putting it up high between the tray and cab for that reason of it going both ways.

[striker2000]

When I had my fuel watch fitted they extended the fuel breather and attached it to the fuel watch bracket.

[Quinny34]

For those with a tray it can be feed into one of the uprights in the head board...

[Gold Stalker]

For those with a tray it can be feed into one of the uprights in the head board...

Yeah, that's what I did. Just extended the hose and reused the existing fuel breather cap. Both my fuel and rear diff breathers now terminate up behind the cabin on the tray's headboard.

I have some pics of it on my build thread http://www.newhilux.net/phpbb/viewtopic.php?f=50&t=17662 (near the end).