Page 1 of 1

my mystery part?

Posted: Thu Mar 06, 2008 7:12 pm
by McGyver
hi all, i am in the process of totally stripping my 95 sierra.

After removing a cover for the fuel filler hose on the inside of the car i found a small tank that would hold maybe 300 or 400 ml with 2 hoses plumbed into it, no lid/cap or breather? does anyone know what this is?

Posted: Thu Mar 06, 2008 7:17 pm
by MART
Fuel tank breather , Cheers Paul.

Posted: Thu Mar 06, 2008 7:24 pm
by RUFF
MART wrote:Fuel tank breather , Cheers Paul.
And expansion tank.

Posted: Thu Mar 06, 2008 7:31 pm
by McGyver
oh ok fair enough so why do the rubber hoses plumb to the steel tubing?
thats as far as i traced them. just for better mechanical protection?

Posted: Thu Mar 06, 2008 7:40 pm
by PJ.zook
Petrol expands with temperature, if you fill youre tank full and it heats up, it needs somewhere to go...

Posted: Thu Mar 06, 2008 7:50 pm
by McGyver
yea i understand how fuel expands. but the way i look at it unless one pipe is tubed to atmousphere there is no venting of pressure ( except the flex in rubber hose, flex in plastic container and the ability to compress air easier than liquid. i get that you guys said it is a breather and an expansion tank but how? thanks lindsay :)

Posted: Thu Mar 06, 2008 8:49 pm
by 11_evl
doesnt it connect to a hard pipe and run up to the charchol caniser under the bonnet and than vent/ suck into the carby??

Posted: Sat Mar 08, 2008 5:51 am
by lump_a_charcoal
Yep sure does.