1976 240d w115 has been sitting and is locked.

[Sugar Bear]

It’s been a looong time but this is what I recall. There is a 3rd nut on a stud with a flat washer under the pump. I think it can be accessed with a 1/4” 13mm flex socket on a 6” extension and ratchet. The socket and extension go in from the back of the pump staying underneath the pump and parallel to the ground.

[Sugar Bear]

Those injection pumps are oil bath, not pressure fed like later pumps. Make sure there is oil in the pump. The oil goes in the top at the cap marked OEL, there is a plug on the side of the pump that is a level control. Suck out any old oil you can and fill it until it exits the plug on the side. I think it uses standard motor oil, someone please jump in if they know the oil requirement for sure.

Congratulations on graduation!!!

[C4rest]

Thanks you!

I will try that. I checked the oil and it was a little low. I’ll add more and try to get that but off. Thanks.