Dose your Fuel Injection Pump Have a Pneumatic Governor or a Mechanical Govenor?

If you have a Pneumatic Governor your Fuel Injection Pump will have a linkage going to a butterfly valve in your Air Intake Manifold and I believe tubing or hose going fromt he Governor to the Air Intake Manifold.

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84 300D, 82 Volvo 244Gl Diesel