BENZ AID - COMMON QUESTIONS AND ANSWERS

Swapped bad engine ( timing chain failure) w/ used running engine (125k). Donor engine has been sitting for 2 yrs. Project car has been sitting for 4 yrs. Did the swap w/ mechanic friend who started engine in my absence before I could change filters, flush fuel etc. Car started and ran rough for 5 minutes then stalled. Has started and ran roughly a few more times. Now will not start. Changed filters, cleaned screen, tried to start on purge only, bled lines, replaced glow plugs w/ ones from bad engine ( they were new @ time of death). Wants to fire but won't.

Just got a sweet deal (I hope) on an '87 W124 300TD wagon. The SLS pump went dry a year ago, so I'm assuming I can just replace the pump, fix the leak and the system will work again, as it worked before it went dry? Or does further deterioration occur besides the pump when it runs dry?

I shall definitely buy the guide after I have the car.

My Uncle is driving my 300CD out of town and he called asking if I've had a problem with turning the key and it not starting, which I haven't. The car has always started as long as it isn't in gear, which isn't his problem. He said that it would start sometimes on the first turn and some times it was taking multiple try's. Seems like it might be the ignition switch. Any suggestions on trouble shooting?

After doing some engine work, I could not get the engine to shut off. I checked all the vacuum lines and connections, which were ok, including testing the fuel shutoff valve and checking the line to it for grease (none). From previous testing, I know that the vacuum pump works well. I thoroughly studied the "Vacuum System Troubleshooting" manual. I noticed that there is one black vacuum line which remains unconnected, the one with a damper from the vacuum transducer which supposedly goes to the automatic transmission vacuum modulator. When I plug this line with my finger, the engine stops.