Hello,

I recently was gifted a 1976 240d which is locked up. (It is a manual 4 speed)
Upon further inspection I have found it is locked up. I have since, tried to bump it over to no avail. I have pulled the injectors and glow plugs and let them sit with Pb blaster. Still nothing. I pulled off all of the belts. Last night I pulled off the oil pan. There is not a spot of rust in the engine. Cam looks good and so do valves. I am wondering if anyone could give me any ideas, before I pull the head.

Thank you for your time!