SPRING 6E1599 - Caterpillar

1. Bend the tabs of the locks from bolts (2). Remove the bolts and cover (1) from timing gear cover (3). 2. Loosen setscrew (4) and remove guide (5), relief valve spring and plunger. 3. Remove inner rotor (6) and outer rotor (7) from the timing gear cover. 4. Measure the inside diameter of bearing (8). The inside diameter must be 2.804 .002 in. (71.22 0.05 mm). If a replacement of the bearing is needed, put a mark on the timing gear cover as to the location of the joint in the bearing and remove the bearing.Install Oil Pump And Relief Valve
1. Thoroughly clean all of the parts. Put oil on all of the parts. 2. If the bearing was removed from the timing gear cover, install a new bearing with tool (A). Make sure the joint in the bearing is installed in the position as shown in illustration. 3. Install inner rotor (2) and outer rotor (1) in the timing gear cover.4. Measure the clearance between the rotors with a feeler gauge. The clearance must be .002 to .006 in. (0.05 to 0.15 mm). The maximum permissible clearance is .009 in. (0.23 mm). Make a replacement of BOTH rotors if the clearance is not correct. The rotors can not be ordered separately.5. Put the plunger and spring in position and push the guide into the cover with a press until the lip on the guide is even with the finished surface on the cover. Make sure the flat surface on the guide is in alignment with the setscrew. Tighten the setscrew. 6. Put cover (3) in position on the timing gear cover. Install the locks and bolts (4).7. Check the oil pump end clearance with a feeler gauge. The end clearance must be .004 .002 in. (0.10 0.05 mm). If the clearance is not correct, make a replacement of BOTH rotors or cover (3). The rotors can not be ordered seperately.end by:a) install timing gear cover and oil pump