fuel smell

T

tlmitf

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#1
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Adelaide
#1
i have a '77 E21 with BAD fuel smell in the cab. use to be only when i had a full tank - but now its all the time.

where do i go looking for breather pipes and the like?
what are your thoughts on this.

thanks
 
I

icesky

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SoCal
#2
Old lines

You Probable have a line that is crusty and leaking if you cant find it while the car is reving a bit high then you should just buy one of those cheap leak tester that work with uv lights.
 
T

tlmitf

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#4
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#4
i can smell fuel in the boot (trunk) as well.

i have check all the rubber lines i can see, everything seems good.

are there rubber lines going to the tank?
how do i get to the top of the tank?
can i pull the back seat out, or do i have to drop the fuel tank?
 
E30m42cab

E30m42cab

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#5
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#5
The back seat just pops up... give it a good tug from each side, and I'll come right off. Just the seat part, not the back. under the seat, there'll be cover with a gasket that you remove, and your fuel tank/pump will be right underneath. Maybe check your filler hose to the tank too. read your manual about dealing with fuel... like disconnecting your battery, etc... be careful.
 
E30m42cab

E30m42cab

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#6
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#6
...and as far as I know, you have two fuel tanks... so it might be the rubber line between the main tank, and the expansion tank... heck, you might just have a hole in the top of your tank... it is almost 30 years old.
 
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