1 month max.
When making any changes to a car, it is important to have a diagram to help. A 1987 Mitsubishi Mighty Max wiring and vacuum hose diagram can be found in its maintenance manual.
Speed of light is max. in vaccum and slower in air.
because the voltage drop.
run motor and set A/C on max, blower on full, pull a vacuum on the system and recharge with R12a 2.9Lbs
The air selector valve (MAX AIR-off- to defrost) is a vacuum switch that runs vacuum motors in the air ducts. If the switch fails or if the vacuum supply from the engine fails, the selector function will fail. The default mode with no vacuum is flow to air conditioning vents. The vacuum hoses resemble a wire and from the engine is usually red and black
The pressure 5kPA is about 0.725psi or 104.4lbs/sqft. (we're using feet for the cross section of the straw so that we can use it easily for the height) We know that water has a density of 62.4lbs/ft^2. Therefore, we divide the weight of the water that we can suck up the straw at 5kPa by the density of water. We get the volume of water that we can move. (104.4lbs) / (62.4lbs/ft^3) = 1.67ft^3 Since our column is a 1ft x 1ft column, water will be able to be lifted to 1.67ft.
Check for vacuum leak--either under dash or in engine compartment Check for bad vacuum motors under dash Defrost is the default position for this system There is a vacuum resovoir located behind your battery , it is for this condition. When you accel your engine doesn't produce vacuum due to the throttle plate being open so a resovoir is there to hold a vacuum reserve so that when there is low vacuum produced by the engine there will be reserve to hold the vacuum motor applied preventing the air from changing direction in your dash. When there is no vacuum the direction is at the defrost vents if you have a broken hose or no vacuum your ac would blow out the defrost all the time But since it happens when you accel it sounds like your vacuum resovoir is cracked thus not allowing it to hold a vacuum
Actually, it should be don e with a vacuum gauge, to maximum vaccuum. Without one, adjust the idle mixture to max., idle.
Check for vacuum leak either in engine compartment or under dashCheck vacuum actuators )(get a hand operated vacuum pump to check motors and actuators)Check selector switch
Bad blower motor? Plugged air duct? Bad selector switch? (air being re-directed) Bad vacuum acutated motor under dash? Vacuum leak under hood or under dash?
why are vacuum flasks called vacuum flask