HEAD 9T9993 - Caterpillar

Illustration 1 g03739858
Type D Wet Back-End Housing
Illustration 2 g03743084
Type D Wet Back-End Housing
Remove bolts (2) from bracket (1). Remove the bracket from flywheel housing (4). Refer to Disassembly and Assembly, "Support and Mounting (CEM) - Remove and Install" for the correct procedure.
Remove bolts (5) from Positions (X) in flywheel housing (4).
Install Tooling (A) into Positions (X) to flywheel housing (4).
Install a suitable lifting device onto flywheel housing (4) to support the flywheel housing. The weight of the flywheel housing is approximately 40 kg (88 lb).
Remove remaining bolts (5) from flywheel housing (4).
Remove bolts (3) and bolts (6) from flywheel housing (4).
Use the lifting device to remove flywheel housing (4) from the cylinder block.
Illustration 3 g03743093
Typical example
Illustration 4 g03743094
Typical example
Remove dust seal (8).
If equipped, remove gasket (10).
If necessary, remove dowels (7) from the cylinder block.
If equipped, remove oil seal (9) from flywheel housing (4).Installation Procedure of Type D Wet Back-End Housing
Table 2
Required Tools
Tool Part Number Part Description Qty
A - Guide Studs M10 by 100 mm 2
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Ensure that the flywheel housing is clean and free from damage. If necessary, replace the flywheel housing.Ensure that the crankshaft palm is free from oil and grease.
Illustration 5 g03743094
Typical example
Illustration 6 g06059332
Typical example
If necessary, install a new oil seal (9) to flywheel housing (4).Note: Press the oil seal into the flywheel housing from the rear. Ensure that the front edge of the oil seal is flush with the gasket surface of the flywheel housing.
Inspect the crankshaft rear seal for leaks. If there are any oil leaks, replace the crankshaft rear seal. Refer to Disassembly and Assembly, "Crankshaft Rear Seal - Remove" and refer to Disassembly and Assembly, "Crankshaft Rear Seal - Install" for the correct procedure.
Clean the rear face of the cylinder block. If necessary, install dowels (7) to the cylinder block.
Install Tooling (A) to the cylinder block.
If necessary, align a new gasket (10) with Tooling (A). Install the gasket to the cylinder block.
Install new dust seal (8).
Illustration 7 g03739858
Type D Wet Back-End Housing
Bolts (3) are 16 mm
Bolts (5) are 10 mm
Bolts (6) are 12 mm
Illustration 8 g03743518
Tightening sequence of Type D flywheel housing
Ensure that bolts (2),