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I’m replacing the fuel system (except hard lines) on my ‘78 and can’t figure out what the point of this “T” connector is for. Is it necessary for my new tank or can I just have the line from the sending unit connect straight to the evaporator line?
I’m replacing the fuel system (except hard lines) on my ‘78 and can’t figure out what the point of this “T” connector is for. Is it necessary for my new tank or can I just have the line from the sending unit connect straight to the evaporator line?
The "T" was there to vent any vapors that may have escaped from the bladder. Your new tank I don't believe has a bladder so just leave the plug in place.
I’m replacing the fuel system (except hard lines) on my ‘78 and can’t figure out what the point of this “T” connector is for. Is it necessary for my new tank or can I just have the line from the sending unit connect straight to the evaporator line?
So the sender unit connection pointing towards where the T connector was connected is the gas tank vent line. You can leave the T unit out but you will need a vented cap then.
If you want the OEM Connection, then remove the bolt to install the T connector. Then vent line in the sender unit connects to the T connector, the other side of the T Connector connects to the Factory vent line which runs down the driver side of the frame to
a charcoal canister mounted in the driver side fender.
So the sender unit connection pointing towards where the T connector was connected is the gas tank vent line. You can leave the T unit out but you will need a vented cap then.
If you want the OEM Connection, then remove the bolt to install the T connector. Then vent line in the sender unit connects to the T connector, the other side of the T Connector connects to the Factory vent line which runs down the driver side of the frame to
a charcoal canister mounted in the driver side fender.
Since they’re both venting the tank, why would I need to connect the vent line to the “T” instead of just running it straight to my evaporator line
Because the fuel sending unit has a built-in fuel/vapor separator the fitting where the plug is should not be used, unless the bladder was reinstall and I don’t see a need for it on a new tank install.
‘78 Fuel Tank Lines
