838402 Volvo.Penta O-ring

1. Remove tube assembly (1) for the fuel ratio control.2. Remove bar (4) from the aftercooler covers.3. Disconnect linkage (2) from the governor.4. Remove two bolts (3) from the bracket.5. Disconnect the wire to the solenoid. 6. Loosen two bolts (6) that hold the bracket to the engine.7. Remove the two bolts from the front of the governor housing.8. Loosen two bolts (5) in the rear of the governor housing. The two bolts in the rear of the governor housing must be removed with the governor.9. Remove the governor housing from the fuel injection pump housing.Install Governor
1. Put the governor (1) in position on the fuel injection pump housing with the fuel rack lever engaged in the fuel rack. 2. Remove the plug and install rod (2) from tooling (A). Push the rod in until the speed limiter plunger will permit full movement of the governor. Tighten the plug to hold the rod in position.3. Remove the plug from the cover on the side of the fuel injection pump housing and install tooling (A).4. Move the governor control lever while the rack stop collar is pulled up. Do this several times and watch the dial indicator to see if the indicator moves backward and forward. If the dial indicator does not give this indication, the fuel rack lever is not engaged in the rack. Remove the governor and check the position of the fuel rack lever and install the governor again.5. Install the bolts that hold the governor to the fuel injection pump housing.6. Remove tooling (A).7. Install the bolts that hold the brackets to the engine.8. Connect the wire to the solenoid. 9. Connect linkage (4) to the governor.10. Install tube assembly (3).11. Install bar (5).end by:a) install fuel ratio controlDisassemble Governor
start by:a) remove governor 1. Remove cover (3).2. Remove cover (2) and the solenoid.3. Remove plate (1). 4. Remove bolts (9) and locks from the levers. Remove both levers and shaft (8).5. Remove low idle screw (5) and high idle screw (6).6. Remove bolt (4). Remove cover assembly (7). 7. Remove strainer assembly (13).8. Remove the screw from rack stop collar (10). Remove the rack stop collar and the spring.9. Remove plug (11), spring (12) and plunger (14). 10. Remove screws (15) from the governor housing. 11. Remove housing (24), seat (19), spring (23), washer spring (18) from housing (21).12. Remove pin (16) and rack lever (20). Remove bolts (17) that hold the cylinder to the housing.13. Remove weights (22), piston, cylinder and control shaft as a unit.14. Remove control shaft from the piston. 15. Remove ring (25) and pin (26) from the seat. 16. Remove washers (29), spring (30) and bolt (28) from seat (27). 17. Remove sleeve (31) and bearing assembly from valve (35).18. Push valve (35) in and remove from the piston.19. Remove ring (32) and weight assembly (34) from cylinder (33). 20. Remove ring (37) from sleeve (31).21. Remove bearing (36) and races (38) from the sleeve. 22. Remove sleeve (40) and piston (39) from cylinder (33).23. Remove O-ring seal (41) from the sleeve. 24. Remove ring (42) and gear (46).25. Remove relief valve (47) for the governor oil pump. Remove the pin, slug and spring from the relief valve.26. Remove ring (45) and pin (43) from the retainer. 27. Remove gear (44), retainer (50), springs (51) and yoke (49) from shaft (53). 28. Remove bolts (48) and cover (55).29. Remove shaft (53) and gear from the housing. Use a press to remove the gear from the shaft.30. Remove gear (52) and bearing (54) from the housing. 31. Remove bolt (56) and lock from the levers.32. Remove shaft (57) and levers (58) from the housing.33. Remove the seal and the bearings from the housing. 34. Remove pin (61), spring (59) and plunger (60) from the levers. A piece of pipe with a notch in each side can be used to hold spring (59) to remove pin (61).Assemble Governor
1. Install detent plunger, spring and pin in levers (2).2. Install bearings (1) in each side of the governor housing with tooling (A). Install levers (2) and shaft into the governor housing. With levers (2) pushed against the bearing on the boss side, clearance between the guide for the governor spring and levers (2), measured on boss side with a thickness gauge (3) must be approximately .135 in. (3.43 mm). With levers (2) pushed against the bearing on the other side, clearance between the guide for the governor spring and levers (2), measured opposite boss side, must be approximately .100 in. (2.54 mm). If measurements are not correct, remove control levers and shaft and move bearings as necessary to get correct measurements. 3. Remove the shaft and levers and install seal and plug with tooling (B). The lip of the seal must be toward the inside when installed.4. Install the levers and shaft. Install the bolt and lock in levers. 5. Install spring (5), slug (4) and pin in the relief valve (6) for the governor oil pump.6. Install the relief valve (6) in the housing. 7. Install the bearing in the housing with tooling (C) and a press.
The guard has been removed from the press for better illustrations.
8. Install gear (8) on shaft (10) with a press. Install shaft and gear in housing. Install gear (9) over bearing (7) in housing. 9. Install pump cover (15), bolts and lock.10. Install yoke, springs, retainer (14), gear (13), pin and ring (11).11. Install gear (12) and ring (16) on bottom of housing. 12. Install O-ring seal on the sleeve. Install the sleeve on piston (19). Install the piston and sleeve in cylinder (20).13. Install cylinder (20) in the weight assembly (17). Install ring (18) to hold the weight assembly in place. 14. Install races (22) and bearing (24) on sleeve (21).15. Install ring (23) to hold the bearing and races in place on the sleeve. 16. Install valve (25) in piston and sleeve (21) on valve. 17. Install bolt (26), washers and spring in seat (27).18.