Quote:
Originally Posted by boosted79
If your guy told you that you need a new WUR because the pressure was leaking down in it after sitting then I think you should get a new mechanic. A bad accumulator will cause that, not a bad WUR. A bad WUR may cause hard starting but not because it is allowing the pressure to bleed down. Of course he makes a lot more selling you a WUR then an accumulator.
|
This is correct.
Also the the fuel pressure regulator in the CIS fuel head has two parts. The skinnier center section with it's own tiny spring is there to hold some residual control pressure after the fuel pump(s) are shut off. The larger outer part holds system fuel pressure just below CIS injector pintle opening pressure which is usually around 30 to 35psi.
Control pressure regulaters are simple and easily rebuildable as long as parts are available.
Brian Leask does a real good job of fixing them and making them adjustable.