Date registered: Jun 2005
Vehicle: 72 250 M130 W114
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Ok, I would double check, all you need is a timing gun, unplug the vacuum lines to the distributor, plug the vacuum lines (golf tees work very well for this), bring the engin up to 3000 RPM and point the timing gun to the timing marks.
According to the maintenance manual you should be reading 31-35'.
Before doing that check the dwell. that should be 30-40 if you have transistorized coil and 39-42.
You want to check the dwell first because a change in dwell is a change in timing.