I have a 1973 Cuda that had a charcoal canister. The canister has been removed and the line was capped along the frame rail in the engine compartment. I believe that this has caused the following problems.
1.) When the fuel tank gets below ½ to ¼ tank I start to have a fuel problem which is more prevalent in hotter weather. What I am experiencing is that my clear glass fuel filter is no longer filled solid with gas. The car has an electronic fuel pump mounted by the gas tank. I do not have a fuel regulator and do not know if the pump has an integral one.
2.) No matter what the outside temp. is or the fuel level of tank shortly after the car is shut down the fuel in the glass fuel filter stars to bubble. I’m not sure if it’s boiling or just draining out of the fuel filter in to the fuel line below (tank side).
3.) After long ride on a hot day the car smells of fuel but there are no leaks.
I have done the following to solve this problem with no success.
1. I removed the vacuum cap blocking the canister line and attached about 6’ of 3/8” line coiled it up and placed a fuel filter on the end of it. This coil style vent is higher than the gas tank.
2. I switched the non vented gas cap to a vented, neither cap changed the problem but I think things are a little better with the vented cap.
3. Installed a mechanical fuel pump still same problem. (the electric one is in use now)
For the record the motor does not run hot. It has a large cam 484 lift, ported/ polished heads w/202 valves, headers, torker intake, a Holley 750 cfm double pumper duel feed with mechanical secondary’s carburetor.
All the hoses between the fuel evaporator and gas tank have been replaced.
Does anyone have the diagram for the canister? More importantly how can I bypass it and make an adequate and safe vent?
Mr. Gasket makes a universal canister but I rather just not have one. The space were the factory canister was has a Cam Dynamics vacuum booster so my power brakes work better I need this due to the camshaft profile.
I have had this car for 20 plus years and my work around have been to keep a full tank of gas in it
tried to attach photos of coil vent and fuel line route but could not?
Any ideas? thanks mike
1.) When the fuel tank gets below ½ to ¼ tank I start to have a fuel problem which is more prevalent in hotter weather. What I am experiencing is that my clear glass fuel filter is no longer filled solid with gas. The car has an electronic fuel pump mounted by the gas tank. I do not have a fuel regulator and do not know if the pump has an integral one.
2.) No matter what the outside temp. is or the fuel level of tank shortly after the car is shut down the fuel in the glass fuel filter stars to bubble. I’m not sure if it’s boiling or just draining out of the fuel filter in to the fuel line below (tank side).
3.) After long ride on a hot day the car smells of fuel but there are no leaks.
I have done the following to solve this problem with no success.
1. I removed the vacuum cap blocking the canister line and attached about 6’ of 3/8” line coiled it up and placed a fuel filter on the end of it. This coil style vent is higher than the gas tank.
2. I switched the non vented gas cap to a vented, neither cap changed the problem but I think things are a little better with the vented cap.
3. Installed a mechanical fuel pump still same problem. (the electric one is in use now)
For the record the motor does not run hot. It has a large cam 484 lift, ported/ polished heads w/202 valves, headers, torker intake, a Holley 750 cfm double pumper duel feed with mechanical secondary’s carburetor.
All the hoses between the fuel evaporator and gas tank have been replaced.
Does anyone have the diagram for the canister? More importantly how can I bypass it and make an adequate and safe vent?
Mr. Gasket makes a universal canister but I rather just not have one. The space were the factory canister was has a Cam Dynamics vacuum booster so my power brakes work better I need this due to the camshaft profile.
I have had this car for 20 plus years and my work around have been to keep a full tank of gas in it
tried to attach photos of coil vent and fuel line route but could not?
Any ideas? thanks mike