Quote:
Originally Posted by Ron in SC
The pumps deliver the fuel and plenty of it volume wise however they must need the accumlator to maintain sufficent pressure to the fuel distributor to make it function. Insufficent pressure to fuel distributor equals problems.
I don't know for sure the accumulator does anything to maintain pressure when car is shut offsince the pump is run for a short time on start up when key is turned.
I think the accumulator is only there to maintain pressure to distributor. You wil note that the high pressure end of accumulator is connected with metal tube and screw on fitting. The other side of accumulator is held on with a screw on clamp.
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Most continuous system include a fuel accumulator which damps fuel-pressure surges and hold residual pressure in the system when engine is shut-off.
The accumulator's damping action protects the fuel distributor from rapid build up of fuel pressure during start up and reduces fuel pump noise when engine running.
When engine stops the accumulator holds fuel pressure to help prevent vapor lock and improve hot restarts.