Dr.Jeff
True Classic
On the '79 (carburetor model) fuel tank there are four fuel hose connections (at the level sender apparatus). One feeds the fuel pump (pick-up). One is the fuel return from the carb. And the other two are vent lines. These two are connected by a "tee" just outside of the tank and serve one purpose after that (charcoal canister). Difficult to see everything, but at the bottom of this image there is one hose from the canister (2) to the "T", with a "separator" (3 and 5) on each of the other two ends, then connect to the tank (4).
I am curious why there are two fuel tank vents that are joined into one hose? Why not just one vent off the tank? Any purpose for the redundant attachments at the tank? I could understand if they had separate functions or connected to different types of SMOG/vapor control devices that must be isolated. But they are not...they simply merge into one hose. Any ideas why?
I am curious why there are two fuel tank vents that are joined into one hose? Why not just one vent off the tank? Any purpose for the redundant attachments at the tank? I could understand if they had separate functions or connected to different types of SMOG/vapor control devices that must be isolated. But they are not...they simply merge into one hose. Any ideas why?