Crankshaft Rear Oil Seal Installation; Piston And Connecting Rod Installation - Doosan G643E Service Manual

7. Install rear crankshaft bearing and bolts Torque
to : 105 N∙m (77lb∙ft)
Crankshaft Rear Oil Seal Housing
Installation
Figure 12-67
Clean
• Gasket surfaces on the block and seal retainer.
Install or Connect
1. New gasket to the block.
IMPORTANT: It is not necessary to use sealant
to hold the gasket in place.
2. Seal retainer.
3. Screws and nuts.
NOTICE: Refer to "Notice" on page 1.
Tighten
• Screws and nuts to 15 N∙m (11 lb∙ft.)
Figure 12-67 Crankshaft Rear Oil Seal Housing and Components
G643 (E) Service Manual

Crankshaft Rear Oil Seal Installation

Figure 12-68
Tool Required:
J 35621 Seal Installer
Install or Connect
1. Crankshaft rear oil seal.
A. Lubricate the inner and outer diameter of the
seal with engine oil.
B. Install the seal on J 35621.
C. Position J 35621 against the crankshaft.
Thread the attaching screws into the tapped
holes in the crankshaft.
D. Tighten the screws securely with a
screwdriver. This will ensure that the seal is
installed squarely over the crankshaft.
E. Turn the handle until it bottoms.
F. Remove J 35621.
Figure 12-68 Installing Crankshaft Rear Oil Seal

Piston and Connecting Rod Installation

Connecting Rod Bearing Selection
Figures 12-69 and 12-70
Tools Required:
J 5239 Connecting Rod Guide Set
J 8037 Ring Compressor
J 36660 Torque Angle Meter
96 Chapter 3. Engine Mechanical System