Sorry I did not notice the " later model 240D engine swapped in. Unknown miles"

Do you have an MW type Fuel Injection Pump or a M Type? The Governor is different on the MW compared to the M type. And Ya I know the on both the throttle lever is still supposed to rest on the stop on both of them.

Note on a 240D but one of our members with an M type Pump changed the manual shutoff lever shaft O-rings and got something wrong. However, I can't remember the symptoms.

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84 300D, 82 Volvo 244Gl Diesel