Aloha all,
If you have never changed your expansion tank or charcoal canister hoses, take a good look at them. I kept getting the smell of fuel (faint but still there) in my trunk. After changing the fuel pump gasket, smell didn’t go away. That’s when I realized that the expansion tank with 4 hoses was in the trunk.
Ordered 11 feet of 6mm (ID) hose and set out to change from the fuel filler neck to the expansion tank. Glad I did this as the braiding was the only think keeping the hoses attached.
Entire process took about an hour because it was tough to get the factory hose clamps off without breaking the expansion valve tips (entire unit is made out of plastic). Also changed the fuel cap for good measure.
Moved onto the vapor line (8mm ID) between the hardline and charcoal canister. Same ordeal, original BMW hose clamps are a bitch to get off. Always had a strong smell of gas under the hood and finally figure out where it was coming from. Then”rubber hose” had hardened to almost plastic consistency. When trying to remove, just crumbled and fell apart.
Quick change and glad to announce that my trunk no longer smells of fuel nor the under the hood. Hoo Hoo!
So, if you haven’t checked, give them a tug or a wiff.
Good luck!
Expansion Tank Hoses and Charcoal Canister Hose
Moderators: GRNSHRK, ron, bfons
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Expansion Tank Hoses and Charcoal Canister Hose
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Ewa Kai, Hawai’i
1984 633CSi
1983 633CSi (wreckers)
“Aloha and have a great day!”
1984 633CSi
1983 633CSi (wreckers)
“Aloha and have a great day!”
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- Location: Atlanta
Re: Expansion Tank Hoses and Charcoal Canister Hose
Where did you get your fuel lines and clamps from?
- 86_6series
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Re: Expansion Tank Hoses and Charcoal Canister Hose
#'s 3 and 18 are what you would want. 6 & 8 mm hose.
https://www.realoem.com/bmw/enUS/showpa ... Id=16_0096
Do a search with those part #'s. Hose clamps to match @ your local parts store.
https://www.realoem.com/bmw/enUS/showpa ... Id=16_0096
Do a search with those part #'s. Hose clamps to match @ your local parts store.
86-635CSi
96-MB C220 SOLD
98-740i
71-Continental MK3
96-MB C220 SOLD
98-740i
71-Continental MK3
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- Posts: 12
- Joined: Tue Nov 08, 2022 6:53 pm
- Location: Atlanta
Re: Expansion Tank Hoses and Charcoal Canister Hose
I was tryna find out if you used oem vent lines for number 3 or you just used fuel vent lines from an auto parts store. And did you go back with the factory clamps or the ones from an auto parts store.
- 86_6series
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- Joined: Mon Apr 02, 2007 10:08 pm
- Location: West Nyack, NY
Re: Expansion Tank Hoses and Charcoal Canister Hose
Better to use new fuel lines and generic hose clamps.
86-635CSi
96-MB C220 SOLD
98-740i
71-Continental MK3
96-MB C220 SOLD
98-740i
71-Continental MK3
- Ralph in Socal
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Re: Expansion Tank Hoses and Charcoal Canister Hose
It's been a few years but I remember buying 6mm fuel hose (regular, not fuel injection rated) from a local auto parts store and using BMW worm drive clamps because I have an abundance of them. Since there's no real fuel flow under any type of pressure I would be comfortable with using any type of hose clamp.KneeGrowNetwork wrote: ↑Fri Nov 11, 2022 3:13 pm I was tryna find out if you used oem vent lines for number 3 or you just used fuel vent lines from an auto parts store. And did you go back with the factory clamps or the ones from an auto parts store.
Ralph
There is a very fine line between "Hobby" and Mental Illness.
85 635csi Zinno Auto
84 528i Euro
83 635 Euro Arktik
81 528i Kastanien 5-speed
88 528e Bronzit (Granpa Car)
86 535i Auto (For Sale)
81 633 csi (retired)
85 635csi Zinno Auto
84 528i Euro
83 635 Euro Arktik
81 528i Kastanien 5-speed
88 528e Bronzit (Granpa Car)
86 535i Auto (For Sale)
81 633 csi (retired)