RvFNG76 wrote:
Ok sounds easy what about no charcoal canister? No big deal im guessing. Another question where can i find a NOS or used speedometer i pulled mine out to see why it was sticking after replacing the cable ( huge spot wore right to the braided cable) and turns out the plastic gears have done what plastic does after 389k miles
Three largely separate issues here.
1. Vapor lock. Occurs during higher outdoor temperatures (over 75 degrees F) in older vehicles. Add the heat from engine and exhaust and the gasoline turns to vapor in fuel line. Engine-driven fuel pump can pull liquid gasoline fine but the vapor bubble just expands. So pump can't draw fuel due to vapor bubble.
As temperature drops, vapor bubble turns back into liquid and pump can draw fuel again. Usually takes a half hour or more. So the problem shows up during quick restarts. In-tank electric fuel pumps eliminated this problem by pushing the fuel to the engine.
(This used to be a handy excuse for men to explain to wives/girlfriend why they were late.)
As far as I know, only one company makes aftermarket electric fuel pumps, in several pressure ratings. In this case, more is not necessarily better. So, a fuel pressure regulator is a good idea.
