Doosan G643 LP Engine — Doosan G643 LP Engine User 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.) 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 Figure 12-67 Crankshaft Rear Oil Seal Housing and Components G643 (E) Service Manual Chapter 3. Engine Mechanical System 96