|
""there is a release of pressure and a load of fumes comes shooting out into the atmosphere. ""
could be an indication that your evaporate controle systems are in failure and require service or that the system was poorly designed in the first place.
one would think proper design would place the vessels under negative pressure
in the system on my '79 vehicle is placed under vacuum , 20 INHG at idle , Valve Cabinet , tappet chest , fuel tank , routed through a dual carbon filter which is shelduled for service @10-20K miles no out gas on opening .
can you describe the nature and required servicing on the evaporation control system?
before opening the fuel cap insure that you ground your self and the vehicle to the fuel dispenser to dissipate any static charge that may be present, static discharge at the moment in time the overpressured fuel tank was opened could have catastrophe results.
|