SEAT 6E3768 - Caterpillar

1. Disconnect lines (1), (2), (3), (4) and (5) from fuel injection pump housing and fuel ratio control. Put identification on all lines. Install protective covers for protection from dirt or dust. Disconnect governor linkage (6). 2. Fasten a hoist to the fuel injection pump housing and governor. Remove the bolts that hold the pump housing to the cylinder block. Remove the bolts that hold the pump housing to the governor drive housing.Install Fuel Injection Pump Housing And Governor
1. Install two new O-ring seals on the pump housing.2. Fasten a hoist to the fuel injection pump housing and governor and put it in position on the governor drive housing.3. Install the bolts that hold the fuel injection pump housing to the governor drive housing.4. Install the bolts that hold the fuel injection pump housing to the cylinder block.5. Remove the protective covers from all lines and openings. Install lines in their respective positions.6. Set the fuel injection pump timing as follows: a) Turn the engine with tool (B) to top center of the compression stroke for No. 1 piston. See FINDING TOP CENTER COMPRESSION POSITION FOR NO. 1 PISTON in 3406 VEHICLE ENGINE, TESTING AND ADJUSTING. b) Remove the plug from the side of the fuel injection pump housing. Install tool (A) through the hole in pump housing and into the notch in the fuel injection pump camshaft. If tool (A) can not be installed in the notch of the fuel injection pump camshaft the injection pump is not in time with the engine and the following procedure must be followed: a) Remove nuts (1) and cover (2) for the automatic timing advance. b) Loosen four bolts (3) to loosen the automatic timing advance.c) Put a screwdriver between the four bolts and turn the fuel injection pump drive shaft until tool (A) can be put into the notch in the fuel injection pump camshaft.d) Remove the timing bolt from the flywheel. Turn the engine 60° counterclockwise [as seen from the front of the engine with tool (B)].e) Tighten the four bolts that hold the automatic timing advance by hand. Turn the engine clockwise [as seen from the front of the engine with tool (B)] until the engine is at top center compression stroke of No. 1 piston.f) Tighten the four bolts (3) to a torque of 25 lb.ft (3.5 mkg). Remove tool (A) from the fuel injection pump housing.g) Tighten the bolts to a torque of 50 lb.ft. (6.9 mkg), and then to a final torque of 75 10 lb.ft. (10.4 1.4 mkg).h) Turn the crankshaft two complete revolutions and check the timing to see that timing is correct. If timing is not correct, do the above procedure again.i) Install the cover for the automatic timing advance and the nuts that hold it.end by: a) install fuel injection lines