Total Rebuild of a 1979 Dodge Class C
I would say some of you have seen the start of this build that my brother bgriffey had posted, Well I have now bought the RV from him and plan to post the pixs of the build I have found a lot of rot i...
Forum Discussion
TreeSeeker wrote:
I assume that the oil pressure switch is to cut off the fuel in case of an accident (instead of an inertia switch)? I am also guessing that you need a manual override to get the engine started since there is no oil pressure before the engine starts? So you turn on the manual override until the engine is started, then turn it off? If so, that does seem prone to accidentally leaving it on.
Inquiring minds want to know...
Yes and no...
Unless the fuel in the carb has evaporated or something, there's usually enough fuel in the float bowl in the carb to fire the engine and let it run long enough until the fuel pump kinda tops it off real quick after firing.
I've got my "override" switch mounted right next to the key with it placed so I flip it downwards to turn the pump on. That way when I turn the key, I can kinda flip my pinkie finger out and flip the switch off when I release the key from the start position. I kinda make it a habit now. I can see a day when I accidentally leave the pump running on the switch and kill the battery after leaving it on overnight, but the pump itself makes a little bit of noise that can be heard with the engine off.
But, yes, overall, the oil pressure switch is also a simple cutoff switch for when the engine dies. A friend of mine who is a local firefighter was telling me awhile back that in a lot of accidents with older vehicles, the engine is still running when they arrive on the scene, sometimes transmission still in gear, wheels still spinning...
