BenzWorld Junior Member
Date registered: Sep 2006
Vehicle: 1971 W108 280SE & 1967 W111 250SE Coupe
Location: Rhode Island
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Ok, did a compression test this morning. 1967 M129 250SE W111. Do these results look encouraging?
5- 145 +
6- 145 +
Plugs 1,2 & 3 again clean as a whistle, 4,5 & 6 dry fouled simply black as coal.
I am next going to check the oil level in the MFI pump. I can see that the line feeding #5 cyl is leaking fuel at the pump. I thinking valve adjustment as well?
Also FYI the engine does not smoke at all, no blue, no white, nothing. Revs eagerly standing still, can barley get out of it's own way when put in gear. PO said the car sat for about a year before he sold it. Got moved around the yard on it's own power as often as weekly but that's about it. No real driving.
FYI new cap, rotor, OEM plug wires, NGK plugs, condenser. Voltage is right all around the engine bay, did CSV test as well with good result.
Did the carb cleaner spray routine around the intake manifold and detected nothing, no change in idle.