KE-Jetronics - 1990 300GE

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Virker ut som accumulatoren din ikke gjør jobben sin om systemet kun greier å opprettholde trykket i så kort tid. Jeg byttet denne på min, men det skyldtes at den var rustet i filler. Men denne skal i tillegg til å smoothe ut trykket og få vekk pulsene, også opprettholde trykket, slik at bilen fyrer momentant neste gang du starter. Jeg sliter med bensinfordampning på min M117 D-jetronic, ved at fuel railen varmes opp og bilen går skikkelig ruskete etter at den startes opp når den har stått en stund. Ganske spesielt problem. Den går først bra etter at ny og kald bensin har sust igjennom rørene en stund etter at man har startet å kjøre.

http://www.volvoclub.org.uk/tech/fuel_in...ection.pdf


"The Accumulator

The accumulator is the first of the components in the fuel system after the pump. This unit has an important role to fill in the

operation of the Bosch K Jetronic system.

Its first job is to help smooth out any pulses in the flow of the fuel, this is achieved by passing the fuel through a series of

baffles and into a chamber giving it slight capacitance and a much smother flow. Its other and possibly more important role

is to maintain pressure within the system when the fuel pump has been switched off; this is achieved by the accumulator

spring and diaphragm pushing against the fuel.

For the duration that the engine is running, the diaphragm will be against its stop within the spring's chamber. When the

engine is stopped and all of the non-return valves close, the spring pressure against the diaphragm will maintain the

residual or holding pressure and overcome any slight seepage. "