What are the fuel pressure readings I should get on a 1979 450sl with bosch K-jetronic fuel injector system;
-"Key on", and "running" (taken at the cold start fuel line)?
- Run control pressure on a cold motor and after warm up (taken
between the fuel dist. and the warm-up control valve) ?
My fix-it books only give the volume that the pump should supply and not the pressure. I had a bad pressure control valve, ordered a new one and got a LOT of adjustment spacers. Any help???
I have learned that adding a 2mm shim increases the pressure about 10psi. Is 63psi too low for a 79 450 sl with the fuel pump running and the motor off?
UPDATED EDIT:
I found a non-MB source for the K-tronic and was given the following info-
System normal operating pressure is aprox 5bar (75psi). This is the point the fuel distributor's primary pressure regulator returns fuel to the tank.
Control pressure (controled by the warm up regulaor) will be aprox 1.0 bar on a cold motor and will increase to aprox 3.5 bar as the motor warms up.

Anyone know if this is the same for my 450 sl???