aharte

My exhaust smells very strongly of gas. If I stick my nose around, it seems like the carb itself is also letting off a lot of fumes. There's nothing near the charcoal canister, or whatever its called. Also, if the car isn't completely warmed up, it will occasionally backfire under acceleration. Once over 160 degrees or so, its fine.

I'm thinking I need a carb rebuild, but is there anything simple to check/adjust? Could it just be rotted gaskets?

71coupe

Is the gas tank full? I never actually seen it, but I've heard that if the tank is too full fuel can actually go into the canister. If it fills all the way up it can get sucked into the motor thru the vapor lines.

If you can avoid stations that use MTBE do it. That stuff not only contaminates the water, it will also eat fuel lines & gaskets.

aharte

It always happens, no matter how much gas is in the tank.

Unfortunately the car lived in CA until a few weeks ago, so its had lots of MTBE. I think the gas here doesn't use it though.

Corey_68

Sounds like you're running rich, maybe need to jet down the carb.

71coupe

Might want to check all of the rubber lines first including the hard to reach ones at the tank (they should be replaced occasionally anyway)

They outlawed MTBE in New York but not in CA. Lots of car fires can be traced to it.

aharte

ttt