fuel smell in cab after filling up

gravedigger7

I have a 78 camper 2.0 fuel injected. I always smell fuel after I fill up. I have had all fuel lines replaced because I have already had a engine fire in my other bus 86 vanagon.!!! Worst shit in the world!!! I am new to the air cooled world and am looking for any responses!! Thank You!!

BUSBOSS · Posted: Wed Jun 18, 2014 11:05 pm Post subject:

Did you replace your fuel filler neck? How about all of the vapor lines including the one up and behind the spare tire well?
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All the redemption I can offer, girl, is beneath this dirty hood
1976 Westfalia
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RONIN10 · Posted: Thu Jun 19, 2014 7:43 am Post subject:

I had the same issue on my bus when I bought it until I rebuilt my engine. I replaced all my fuel hoses at once, but the one that was giving me the smell in the cabin was the red one in this photo:

http://ratwell.com/technical/FuelHoses/09-FuelBreatherHoses.jpg

You have to replace it kind of blind unless you have your engine out and do some contortionist maneuvers to get your head in place. I just used my phone to snap a shot so I could see what things looked like in there.
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Andrew

Oscar: 1976 Westfalia Deluxe Camper, 2.0L FI, Manual Transaxle

highlandmurf · Posted: Sun Jun 22, 2014 6:29 am Post subject:

Hey,
I noticed that you are from NY.
I have been having the same problem.
Last month I took a trip out to Pennsylvania and filled up 3 or 4 times.
No Fuel smell the whole trip. Got back to NY and filled up, smell came back.

I think the vapor seal on the NY pumps, aside from making it a PITA to get the filler onto the bus, might allow the pump to overfill, by not allowing the pump shut-off switch soon enough.

I still plan on checking my filler hose anyway though.
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1976 Westy Marigold Yellow
2.0 stock FI
My M-Plate

udidwht · Posted: Sun Jun 22, 2014 8:59 am Post subject:

90* elbow at the top center of the tank...almost always cracked wide open. It is also NLA.
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aeromech · Posted: Sun Jun 22, 2014 9:03 am Post subject:

You'll need to pull off the firewall and that pie plate on the right side. Doubtful that there's an easy fix.
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Wildthings · Samba Member Joined: March 13, 2005 Posts: 52742

aopisa · Posted: Sun Jun 22, 2014 10:31 am Post subject:

Start simple before you start pulling out firewalls, pie plates, filler necks, etc. Ask me how I know.

Check to make the rubber seal on your gas cap is in good order.

It is most likely something more involved than this, but it is the least labor intensive place to start. That's what did it for me. New gas cap and I was good to go.
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gatorjos · Posted: Sun Jun 22, 2014 9:05 pm Post subject:

Yup what Wildthings said -- look at the diagram and go through them all. I had to replace mine -- they were total crud after 37 years...
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1977 Westfalia Weekender Berlin "The Kitebus" aka " Colonel Mustard"

Previous romances:
1972 Ghia cabriolet (full body-off restoration -- stolen after five years of ownership)
2004 Passat 1.8T (manual)

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gatorjos · Posted: Sun Jun 22, 2014 9:05 pm Post subject:

Yup what Wildthings said -- look at the diagram and go through them all. I had to replace mine -- they were total crud after 37 years...
_________________
1977 Westfalia Weekender Berlin "The Kitebus" aka " Colonel Mustard"

Previous romances:
1972 Ghia cabriolet (full body-off restoration -- stolen after five years of ownership)
2004 Passat 1.8T (manual)

http://21stcenturyhobo.com

dugfresh · Posted: Sun Jun 22, 2014 10:11 pm Post subject:

Be prepared with an assortment of Really really short screwdrivers. I think we eventually pushed the damaged filler neck into the body and got to it via the pie plate since the hose clamp screw was facing the body. We then lifted it to align the new filler neck then again lowered it to tighten the clamp. Getting the filler neck to align to the body is sort of tricky too. Just have to do it.

If you're prone to swearing a lot during automotive operations... this one will bring out some interesting vernacular!
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78 Riviera
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Bala · Posted: Mon Jun 23, 2014 7:39 am Post subject:

If you end up replacing the upper 90 degree metal tube to body rubber piece you can use your old one as reference to line up the new one (just be sure to NOT loosed the clamp while removing it). That will save you a lot of time and trouble. Smile

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1976 Westy

1966 Beetle

downhillinlepper · Posted: Mon Jun 23, 2014 8:38 am Post subject:

I had that same issue when i bought my 74 bus. I ended up just taking the filler hose out so i could check it out. Pretty easy to do. Only need two tools. A phillips head screwdriver and flathead, maybe. The flathead was basically just to pull the hose clamps off.
The only thing that made it a little tricky was the angle you had to get your arm into that hole inside. Wished i had two elbows. But, it was still a really easy job, and a cheap fix for that rubber piece. Less than $20 if i remember correctly.

JDub113 · Posted: Mon Jun 23, 2014 8:49 am Post subject:

karlonwheels · Posted: Mon Jun 23, 2014 9:34 am Post subject:

highlandmurf · Posted: Tue Jul 22, 2014 7:54 pm Post subject:

An experience I had recently got me thinking about the logistics of how the tank fills up and how the fuel travels when the tank is full.

Basically, while on a camping trip (read: miles from home) I had a gas pump fail to shut off resulting in fuel not only splashing out of the filler, but also dripping out of the other side of the bus.

Seems my vapor connection behind the spare tire well was cracked. (new one only lasted 2 summers)

Image may have been reduced in size. Click image to view fullscreen.

Pic courtesy of Ratwell

Upon getting towed home (after 2 nights in a tent next to a smelly bus) I looked into how gas pumps actually shut off.

https://www.youtube.com/watch?v=TFKOD3KRkZs

Basically, the pump shuts off when the gas reaches the end of the nozzle.

As the nozzle is higher than the majority of the vapor lines, is it safe to say that when you full the tank, the bottom portion of the lines are full too? Just due to gravity?
_________________
1976 Westy Marigold Yellow
2.0 stock FI
My M-Plate

Wildthings · Samba Member Joined: March 13, 2005 Posts: 52742

Never top off the tank. I just fill on the slowest speed with the nozzle pushed in as far as it will go and when it clicks off it is done, you would not be doing yourself any favors trying to force another tenth of a gallon in. Not sure what hose I used on my vapor lines, probably the European FI hose I can get pretty cheap, but it is 7 years old at this point.

If you fill you tank as full as you can get it and then park it on a hot day without having driven it very far, you have to get gas leaking out somewhere as it will expand as it warms.


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