COVER-FRONT HOUSING 1170194 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 475–4932 Eyebolt Assembly 4
B - Loctite 5970 - Start By:
Remove crankshaft pulley.
Remove the flywheel housing.
Remove front crankshaft seal.
Remove the oil pan.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: To prevent engine damage, do not alter or deface the fractured mating surfaces of connecting rod and cap. Do not reverse the connecting rod cap location.Note: To prevent engine damage, do not push fractured surface of connecting rod.Note: To prevent engine damage, keep the fractured mating surfaces of the connecting rod and cap clean and free of lint and debris. Do not allow the mating surfaces to rest on other surfaces. Do not bump the mating surfaces or drop the connecting rod or cap. Doing so could chip or mar the mating surfaces, causing incorrect mating of rod and cap.
Illustration 1 g06090697
Remove bolts (1) and bolts (2). Remove oil suction tube assembly (3).
Illustration 2 g06090713
Illustration 3 g06090743
Remove bolts (4) and discard. Install Tooling (A) and attach suitable lifting device. Remove bolts (5) and discard. Remove cylinder block bed (6). The weight of cylinder block bed (6) is approximately 84 kg (185 lb).
Illustration 4 g06090856
Make index marks for location and orientation of bearings (7). Remove bearings (7) from cylinder block bed (6).
Illustration 5 g06090868
Make index marks for location and orientation of connecting rod caps (9). Remove bolts (8) and connecting rod caps (9).
Illustration 6 g06090878
Remove bearings (10).
Illustration 7 g06090883
Attach a suitable lifting device to crankshaft (11). Remove crankshaft (11) from cylinder block (12). The weight of crankshaft (11) is approximately 126 kg (278 lb).
Illustration 8 g06091112
Make index marks for location and orientation of bearings (13). Remove bearings (13).Installation Procedure
Install crankshaft (11) in the reverse order of removal.
Ensure that the crankshaft main bearing tabs engage with the grooves in the block and the crankshaft main bearing cap.
Apply clean engine oil to the face of the bearings (13) before installing. Ensure that the back surface of the bearings is clean and free of oil and debris.
Apply Tooling (B) to the surface of cylinder block bed (6) prior to installation.
Tighten bolts (8) to a torque of 70 4 N m (52 34 lb ft).
Tighten bolts (8) an extra 60° 3°.
Install new bolts (5).
Illustration 9 g06091274
Tighten bolts (5) to a torque of 160 8 N m (118 6 lb ft) in the order shown in Illustration9.
Tighten bolts (5) to a primary torque angle of 90 degrees 5 degrees in the order shown in Illustration9.
Tighten bolts (5) to a secondary torque angle of 60 degrees 3 degrees in the order shown in Illustration9.
Illustration 10 g06091339
Tighten bolts (4) to a torque of 30 2 N m (266 18 lb in) in the order shown in Illustration 10.
Illustration 11 g06091349
Tighten bolts (4) to a torque angle of 60 degrees 3 degrees in the order shown in Illustration11 .