I’ve removed the airbox, transmission, clutch and flywheel to gain access to the oil pump. You can see how I did that work here.

• 13 BMW 1983 R80ST Remove Air Box & Pulse Air System
• 23 BMW 1983 R80ST Remove Transmission
• 21 BMW 1983 R80ST Remove Clutch
• 11 BMW 1983 R80ST Remove Flywheel

I’ve published documents on removing, inspecting and installing the oil pump on other projects. Here are links to those documents.

• 11 BMW 1977 R100RS Replace Rear Main Seal & Oil Pump Cover O-Ring
• 11 BMW 1983 R100RS Remove & Inspect Oil Pump
• 11 BMW 1983 R100RS Install Rear Main Seal, Oil Pump Cover & O-ring

Here is the link to how I do the work on the 1983 R80ST.

• 11 BMW 1983 R80ST Remove, Inspect, Install Oil Pump

And, here is a short video that summarizes how I do this work.

VIDEO: 1983 BMW R80ST Remove And Inspect Oil Pump