Recently moved my car to my new house and small garage. The garage is very poorly ventilated and very hot…it’s Fl. There have been strong gas fumes from the car. Had to crack the garage door to help with the smell. I’m guessing it is from the tank venting? The old vent canister was junk and got tossed years ago. Would it be worth it to replace the charcoal canister and put it back on the car? Thanks!
I would vote to replace the charcoal canister and restore the lines. Although emissions related I don’t think it inhibits performance except that you need an enclosed air breather to hook up the line from the canister to the air breather. Maybe someone else with an open air breather can chime in. Are you sure the tank vent is plugged? The photos are from a 73.
Unfortunately I do not have a factory air cleaner and instead Have a open style. Instead of replacing the factory unit I was considering making a smaller version using AN gas filter filled with activated charcoal.
Are you sure there is not a leak someplace? A few stray drops of gas can smell very strong in a closed space. Also, the gas will evaporate from the float bowl on the carb. And with that open aircleaner you will smell it.
No fuel leak, I have checked every fitting and line. It is nylon braided line and I have read the smell can potentially seep through the line. It is a Holley sniper EFI system.
I love it so far. I have about 300 miles on the system no issues at all. Initially had some issues with AFRs fluctuating but I was able to figure them out. Car starts and idles fantastic. Biggest complaint is the throttle control. The base location for the throttle is too low and doesn’t have enough leverage and leads to a hard pedal with no fine control. It’s easily fixed with a cheap throttle extension kit. $20s on Amazon or super easy to make one. Just annoyed they don’t fox the issue or send one out with it.
I eliminated that vapor recovery system 35 years ago and my car has never smelled "gassy". I'm thinking it's coming from somewhere else. Not sure how the fuel injection system affects that. Mine has a carb...
The more I have sniffed around in the car it seems the smell is coming from the AN fuel line and not the vent line it’s self. When I redid the system with EFI I just ran AN line through out. I may have to switch back to steel line and see if that helps.
Food for thought .... the new system operates at a higher pressure. I do not know much about the Sniper system, but wondering if you have a fuel line that is pressurized while the car sits and if that may have a small seep happening over time. There is a return line involved but does the regulator in the system keep some pressure to allow a fast start up? Again, don't know this system, just throwing this out there to give you ideas where to look next.
I had to put my canister back on. In the summer the fuel smell was so bad. I also installed a new tank seal as well. Made a significant difference.
I swapped all of my rubber hoses for Earl's VaporGuard and it made a pretty significant difference in the fuel smell as well, never thought it would, but it does.
