Ford 460 engine questions/issues
Hey everyone, new to the forums and new to RV ownership. (Owned about 2 months now). Firstly, HI! nice to join a community of like minded travelers! I own a 26 foot 1988 ford gulfstream rv. Ok ...
Forum Discussion
From your description and the picture those are fuel vapor canisters. The are attached via the vent line to the fuel tank and the purge solenoid.
When the vehicle sits especially in the sun the fuel in the fuel tank heats and emits vapor. The excess pressure in the tank and the associated hydrocarbon (unburned fuel, a major ingredient in smog) vapor pass through the canister on the way to vent to the atmosphere. Inside the canister is an activated charcoal that absorbs the hydrocarbon out of the vapor so the hydrocarbons do not escape.
Now when you start the vehicle the purge valve opens for a set amount of time and pulls fresh air through the canister and into the engine. As the fresh air is traveling through the canister is strips the hydrocarbons out of the charcoal and into the engine to be burned.
When the vehicle sits especially in the sun the fuel in the fuel tank heats and emits vapor. The excess pressure in the tank and the associated hydrocarbon (unburned fuel, a major ingredient in smog) vapor pass through the canister on the way to vent to the atmosphere. Inside the canister is an activated charcoal that absorbs the hydrocarbon out of the vapor so the hydrocarbons do not escape.
Now when you start the vehicle the purge valve opens for a set amount of time and pulls fresh air through the canister and into the engine. As the fresh air is traveling through the canister is strips the hydrocarbons out of the charcoal and into the engine to be burned.
