Here are some things to think about when restoring one of these vacuum fuel systems. First off note the cutaway drawing from the earlier
page and the items that need to working inside on of these. The float must work freely, the air relief valve and suction valve must not leak when seated.
Then when putting the tank back together the upper gasket canít leak either!!! Itís very important not to have any leaks anywhere in this system!!
Now if the car has set for a while, or a fair amount of cranking to start the engine has been done, one will need to refill the tank. This system only
works if you have a vacuum and if the engine isnít running you have no vacuum. So take note where the fill plug is and remove it to fill the system.
Do not fill the more than in the cut away drawing!!!
Once the engine is running the system should pull gas from the tank and keep the carburetor filled. If the engine runs for a while then dies from running
out of gasoline you filled the system with then look for a leak in a fitting, gasket or valve seat on the tank.