gas smell? - fuel sender seal - 78 bus
- zabo
- Old School!
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gas smell? - fuel sender seal - 78 bus
I've been fighting a gas smell for a while.
I can only smell it inside the car. I dont see any drips and no smell in engine bay.
it usually only occurs with a full tank but yesterday it happened on 1/2 tank after i took a pretty hard corner.
ive replaced all the small rubber hoses, the filler neck and the tank elbow. My last guess is the sender seal. If you have others let me know :)
How hard is this to replace without pulling the engine? I know colin did it recently in his westy, but didn't know if there were differences on the 78 that might make it harder.
I can only smell it inside the car. I dont see any drips and no smell in engine bay.
it usually only occurs with a full tank but yesterday it happened on 1/2 tank after i took a pretty hard corner.
ive replaced all the small rubber hoses, the filler neck and the tank elbow. My last guess is the sender seal. If you have others let me know :)
How hard is this to replace without pulling the engine? I know colin did it recently in his westy, but didn't know if there were differences on the 78 that might make it harder.
60 beetle
78 bus
78 bus
- Amskeptic
- IAC "Help Desk"
- Status: Offline
Re: gas smell? - fuel sender seal - 78 bus
If you have a 1978, do you have an intact fuel evaporative canister just behind the battery? Fresh air hose leading to it from the r/s upper cylinder cover? Hose going from the top of the canister to the EEC valve on the air filter housing? Intact yellow plastic lines leading from the fuel tank vapor lines to the canister? Any breach in the system, welcome to fuel vapor.zabo wrote:I've been fighting a gas smell for a while.
I can only smell it inside the car. I dont see any drips and no smell in engine bay.
it usually only occurs with a full tank but yesterday it happened on 1/2 tank after i took a pretty hard corner.
ive replaced all the small rubber hoses, the filler neck and the tank elbow. My last guess is the sender seal. If you have others let me know :)
How hard is this to replace without pulling the engine? I know colin did it recently in his westy, but didn't know if there were differences on the 78 that might make it harder.
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
- zabo
- Old School!
- Location: earth
- Contact:
- Status: Offline
Re: gas smell? - fuel sender seal - 78 bus
If you have a 1978, do you have an intact fuel evaporative canister just behind the battery? yes Fresh air hose leading to it from the r/s upper cylinder cover? any pics of this? i only see three hoses coming off canister. two on top then a thick one on bottom that dead ends behind the battery Hose going from the top of the canister to the EEC valve on the air filter housing? yes Intact yellow plastic lines leading from the fuel tank vapor lines to the canister? yes Any breach in the system, welcome to fuel vapor.
Colin
Colin
60 beetle
78 bus
78 bus
- Amskeptic
- IAC "Help Desk"
- Status: Offline
Re: gas smell? - fuel sender seal - 78 bus
The bottom one goes here . . .zabo wrote: Fresh air hose leading to it from the r/s upper cylinder cover?
i only see a thick one on bottom that dead ends behind the battery.
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
- zabo
- Old School!
- Location: earth
- Contact:
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Re: gas smell? - fuel sender seal - 78 bus
ah this one is not connected. ill replace and refresh charcoal canister as well. thanks
60 beetle
78 bus
78 bus
- zabo
- Old School!
- Location: earth
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Re: gas smell? - fuel sender seal - 78 bus
well got everything back in and filled the canister with fresh charcoal. -with help fromthis post
We'll see wht happens but i have a feeling i'll wind up replacing the sender seal.
We'll see wht happens but i have a feeling i'll wind up replacing the sender seal.
60 beetle
78 bus
78 bus
- Amskeptic
- IAC "Help Desk"
- Status: Offline
Re: gas smell? - fuel sender seal - 78 bus
Why? Did someone take the sender seal out at some prior point? Undisturbed, they last forever.zabo wrote:well got everything back in and filled the canister with fresh charcoal. -with help fromthis post
We'll see wht happens but i have a feeling i'll wind up replacing the sender seal.
Colin
BobD - 78 Bus . . . 112,730 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
Chloe - 70 bus . . . 217,593 miles
Naranja - 77 Westy . . . 142,970 miles
Pluck - 1973 Squareback . . . . . . 55,600 miles
Alexus - 91 Lexus LS400 . . . 96,675 miles
- zabo
- Old School!
- Location: earth
- Contact:
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Re: gas smell? - fuel sender seal - 78 bus
I guess im thinking tht because the fuel smell is so strong sometimes. I'm having a hard time believing it could be from tht one disconnected hose.
60 beetle
78 bus
78 bus
- Bleyseng
- IAC Addict!
- Location: Seattle again
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Re: gas smell? - fuel sender seal - 78 bus
Amskeptic wrote:The bottom one goes here . . .zabo wrote: Fresh air hose leading to it from the r/s upper cylinder cover?
i only see a thick one on bottom that dead ends behind the battery.
Now there is a good photo of how the heat dump piping looks!!
Geoff
77 Sage Green Westy- CS 2.0L-160,000 miles
70 Ghia vert, black, stock 1600SP,- 139,000 miles,
76 914 2.1L-Nepal Orange- 160,000+ miles
http://bleysengaway.blogspot.com/
77 Sage Green Westy- CS 2.0L-160,000 miles
70 Ghia vert, black, stock 1600SP,- 139,000 miles,
76 914 2.1L-Nepal Orange- 160,000+ miles
http://bleysengaway.blogspot.com/
- zabo
- Old School!
- Location: earth
- Contact:
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Re: gas smell? - fuel sender seal - 78 bus
what hose are you guys using for heat dump? l bought some 50mm but its a bit too small.Now there is a good photo of how the heat dump piping looks!!
60 beetle
78 bus
78 bus
- asiab3
- IAC Addict!
- Location: San Diego, CA
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Re: gas smell? - fuel sender seal - 78 bus
Are you using the factory '78 metal tubes with the short hose as a connector, or are you making the entire thing out of the heater hose?
1969 bus, "Buddy."
145k miles with me.
322k miles on Earth.
145k miles with me.
322k miles on Earth.
- zabo
- Old School!
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Re: gas smell? - fuel sender seal - 78 bus
yes factory tubes with short hoseasiab3 wrote:Are you using the factory '78 metal tubes with the short hose as a connector, or are you making the entire thing out of the heater hose?
60 beetle
78 bus
78 bus