STARTING MOTOR GP-ELECTRIC 3T8967 - Caterpillar

Remove Timing Gears
Start By:a. remove camshaft 1. Remove four bolts (1), thrust plate (2), and idler gear (3). 2. Use tooling (A) and a press to remove the bearing from idler gear (3). 3. Remove thrust washer (4), bolts (5), and shaft (6) from the cylinder block. 4. Use tooling (B) to remove gear (7) from the crankshaft.Install Timing Gears
1. Turn the crankshaft so dowel (2) in the crankshaft is up, as shown.2. Heat crankshaft gear (1) to a maximum temperature of 233°C (451°F). Install crankshaft gear (1) on the crankshaft. Make sure the side of the gear with "V" timing mark (3) is out, as shown. Make sure the groove (slot) in the crankshaft gear is in alignment with dowel (2) on the crankshaft. Make sure the crankshaft gear aligns with the idler gear for the oil pump. 3. Install shaft (4) and bolts (5). Put clean engine oil on thrust washer (6). Install thrust washer (6) on the shaft so that oil groove (7) is out, as shown. 4. Use tooling (A) and a press to install the bearing in the idler gear. Install the bearing so that the bearing joint is in the thick area of the gear. This is the area that is the opposite of surface (9). Install the bearing so that it is 0.38 0.25 mm (.015 .010 in) below the surface on the opposite side of the gear surface (8).5. Put clean engine oil on the bore of bearing. 6. Install idler gear (10) on the shaft. Make sure "V" mark (11) on the idler gear aligns with the "V" mark on the crankshaft gear. Install thrust plate (12) so that the side of the thrust plate with the oil groove (13) is toward the idler gear.7. Put clean engine oil on the side of the thrust plate that is next to the idler gear. Install the thrust plate (12) and the four bolts that hold this plate in place.End By:a. install camshaft