Sam:

1. Is English a second language for you?

Yes/Western GERMANY (Do I have an accent?:confuse d: )

2. Please tell us what model/year/miles on engine/ transmission etcetera your car has.

Sorry, 617.95x engine of course, in a 300 SD of 82

3. What specifically it is that you are trying to accomplish or repair on your car or is it that you just want to contribute and participate to our diesel MBZ discussion?

I am not new to Diesels esp. MBz. I bought this California car more or less directly from a guy in Nevada two years ago. I participate to our forum quite often, thanks for this.

4. Why was the Injection Pump [IP] replaced?

I had the chance to get a brand new IP for little money while the existing one caused rough idling and poor power.
And I want to have a perfect car.


For this reason I:

Adjusted valves
Replaced nozzles (new 259 instead of the original 240) and adjusted/balanced injectors
All GPs new
Compression check showed #3 approx. 25 bar all others 27/28 bar

What I wanted to say is that the #3 mV reading seams to correspond with the difference in compression. So far, so good.
For this reason I tried to increase the mVs on #3 but as someone already wrote some others changed too. Why do the others change and where is the trick to win earlier?
As an intermediate result (before the neighbour came) I had approx 11 mV with a max. difference of 0.3 mV. My VM did not jump or hunt.

Before setting the IP with the mV in detail (did it with the drop method some weeks ago), I want to see the same mV reading on each plug.

It seams to me that the pump was perfect on the bench but needs some adaptation to my engine. But playing with the single elements is time and brain intensive fun.

Kevin, be careful when soldering the lines. Covering the connection area with a flexible hose (PE, PA or PVC) could protect you from the spray in case of leaking.

Sorry again for my bad English.

Tom
(from WestCoast Germany )