How does the control pin in the fuel distributor work?
The control pin in the fuel distributor moves according to how much air deflects the air sensor plate and is also affected by control pressure. Control pressure acts on the top of the control pin, cold control pressure is low (14 psi depending on model) which lessens the resistance of the air sensor plate to rise.
How does the fuel distributor work on a WUR?
Many WURs have a vacuum diaphragm that provides enrichment during acceleration. Fuel distributor – Control center, contains a regulator to keep system pressure constant. The main moving part is a central pin which is controlled by the air sensor plate.
How does the fuel injection control system work?
Fuel injection control is electronic and is based on the measurement of air entering the intake and on engine speed measured by the Hall sender. The coolant temperature sensor provides correction during engine starting and warm-up. The oxygen sensor, intake air temperature sensor
Where is the fuel filter and pump located?
Raise the car (740) high enough, so that you have the best of angles (and room to work) to hold all in proper position. Spray the fuel filter fittings with penetrating oil. The filter and pump sit in a subframe or cradle under the driver’s side of the car, mid-ship, held up by three 10mm bolts.
The control pin in the fuel distributor moves according to how much air deflects the air sensor plate and is also affected by control pressure. Control pressure acts on the top of the control pin, cold control pressure is low (14 psi depending on model) which lessens the resistance of the air sensor plate to rise.
Who is responsible for the idle air control valve?
The engine control unit is responsible for managing the idle air control valve. When this central computer receives information about the temperature and load of the engine, it uses this information to make the proper adjustments to the idle air control valve.
Many WURs have a vacuum diaphragm that provides enrichment during acceleration. Fuel distributor – Control center, contains a regulator to keep system pressure constant. The main moving part is a central pin which is controlled by the air sensor plate.