984712 Volvo.Penta Hexagon screw

start by: a) remove fuel injection pump housing and governor as a unitb) separation of governor from fuel injection pump housing1. Remove the injection pumps with the following methods: a) Remove the cap and felt washer (1). b) Install tool (A) and loosen bushing (2) from the housing. c) Install tool (B).d) Remove bushing (2) and tool (A).e) Remove the seal (3).f) Lift the injection pump out of the housing.g) Remove spacers (4). Put identification on spacers (4) and pumps as to their location so they can be installed back into their original positions in pump housing.2. Disassemble injection pumps with the following method: a) Remove bonnet (5), ring (6), spring (7) and check valve (8) from barrel (9).b) Remove plunger assembly (10), washer (11) and spring (12) from barrel (9).
During disassembly and assembly of injection pumps, use much care to prevent damage to the surfaces of the plunger assemblies. The barrel and plunger assemblies have a special fit with each other and are not to be used with other barrels or plunger assemblies.
3. Remove the rack (13).4. Remove lifters (14). Put identification on lifters so they can be installed back into their original positions in the housing. 5. Remove the camshaft plate (15), bolt and lock. 6. Remove the spring (16) and the gear assembly (17) from the camshaft. 7. Remove the camshaft (19). 8. Install tool group (C) and remove the camshaft bearings from the fuel injection pump housing.9. Remove the two rack bearings (18) from the pump housing.Assemble Fuel Injection Pump Housing
1. Install the camshaft bearings in the fuel injection pump housing with tool (C). Install the bearing in governor end of housing so the lubrication hole in the bearing is in alignment with lubrication hole in housing and the junction (joint) of the bearing is above a horizontal center line through the housing. Install the camshaft bearings .010 .005 in. (0.25 0.13 mm) below the outside ends of fuel injection pump housing.
Install the rack bearing in the governor end of the housing with the small holes in the bearing parallel to the vertical centerline of the pump.
2. Install the rack bearing in the governor end of the housing with tooling (F). Install the bearing so it will be .195 .005 in. (4.95 0.13 mm) lower than the face of the housing. Tooling (D) must be used to install the rack bearing in the accessory drive end of the housing. This will put the tab on the bearing in its correct position and install the bearing to the correct depth. 3. Put clean engine oil on camshaft. Install the camshaft in fuel injection pump housing. 4. Put the governor drive gear (1) and spring (2) in position on the camshaft. Install the camshaft plate (3), bolt and lock. 5. Install the lifters (4) in their respective positions in housing. Put clean fuel oil all over the rack. Install rack (5) in fuel injection pump housing so the groove (slot) in rack is toward governor end of housing.6. Install the spacers in their respective positions in the housing. If new lifters and pumps are to be installed, an adjustment must be made to the fuel pump timing dimension. See FUEL INJECTION PUMP TIMING DIMENSION SETTING-OFF ENGINE in TESTING AND ADJUSTING.7. Assemble the injection pumps with the following method: a) Put clean fuel oil on all parts of the fuel injection pumps.b) Install the spring, washer and plunger assembly into the barrel.c) Install the spring, check valve, bonnet and ring on the barrel.
Do not install the injection pumps in the housing until the rack has been put in center position.
8. Put the rack in center position with tooling (E) as follows: a) Install the locating fixture (6) on the fuel injection pump housing.b) Install the rack setting gauge (7).c) Put the gauge (7) in the zero reading position.d) Push the rack (5) against the gauge (7). e) Install clamp (8) on housing as shown in illustration. Clamp (8) will keep the rack in the center position during installation of the injection pumps.9. With the rack in center position, install the injection pumps as follows: a) Turn the camshaft until the lobe of the camshaft is down for pump being installed. b) Install extractor (B) on the pump.c) Look down the pump and put the notches (9) in bonnet and barrel in alignment with the groove (slot) (10) in pump gear segment. The groove (slot) (10) must be in alignment with the center of notches (9). Put the pump into position so that notches (9) are in alignment with the guide pins in bore of housing. Install the pump in its respective position in the pump housing. d) Install the seal and bushing (11). Push down on extractor (B) and tighten the bushing by hand (finger tight only) until the bushing is even with top surface of the housing. If bushing can not be installed this far by hand, remove it. Remove pump. Put the parts in alignment and install pump again.
Do not make bushing even with face of housing with a wrench. If pump has been installed correctly, the bushing can be tightened with the fingers until it is even with face of housing.
e) After all pumps have been installed, check the rack travel as follows. Move clamp (8) away from end of rack. Use gauge (7) to check the rack travel. If pump gear has been installed correctly in relation to rack, the total rack travel must be about .800 in. (20.3 mm). If total rack travel can not be made, remove the pump. Put components in alignment and install pump again. f) Remove extractor (B) and tooling (E). Install tool (A) and tighten bushing to a torque of 150 10 lb.ft. (205 14 N m). Remove tool (A). Install the felt washers and protection caps.end by: a) connection of governor to fuel injection pump housingb) install fuel injection pump housing and governor as a unitc) make adjustments