INTERMITTEND HARD START (86 300 E)

[Mino Erhan]

Can anybody help me here?
I have a 86 300 E 158K. Very clean and I have been doing all the
repairs on it. I have all the factory shop manuals. But my ongoing
problem is this: Hot or Cold, I have an intermittend starting problem.
I have changed fuel pump, fuel pump relay, accumulator, filter, cold
start valve, Co2 values are correct, new battery, all sensors check ok.
New plugs, wires, distributor, rotor,cap. All rubbers on vacuun lines
are replaced. CIS/EZL Temp. sensor is new. Car apperars to have a
very slight valve seal leak. Air Flow Sensor plate is adjusted
correctly. Have NOT looked at Fuel Distributor Contol Piston yet.
Could be getting stuck. Fuel pressure OK

The crancking duration is very long during this problem. And I also
hear some sort of crackling/gurgeling noise from the gas tank. I
checked the evap system, seems to be ok. It seems to run very rich at
that time, when it starts. Acts like loosing fuel pressure, but yet
sometimes tries to run backwards, acting like no ignition. The dealer
doesnt seem to know, although they can hear the noise when you open the
gas filler cap.

Please advise.

Mino

[Roland Franzius]

Reminds me of the worn O-ring rubber ring gasket at the fuel
distributor control piston in my
280E. My start problems now arise from a cat, sleeping on top
of the warm motor and biting the
ignintion cables occasionally
roland

--
Roland Franzius

+++ exactly <<n>> lines of this message have value <<FALSE>>
+++