91311-ZV5-821 Honda O-RING (Honda Code 4594875).

Table 1
Required Tools
Tool Part Number Part Description Qty
A 194-3536 T40 Torx Socket 1
B 227-4389 E10 Torx Socket 1 Note: The crankshaft rear seal and the housing are manufactured as one assembly.Note: Do not lubricate the crankshaft rear seal or the crankshaft flange. The crankshaft rear seal must be installed dry.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Failure to follow this procedure could lead to the crankshaft rear seal being damaged.
Illustration 1 g06166503
Illustration 2 g01986154
Ensure that crankshaft flange (1) is clean, dry, and free from damage.
Ensure that the gasket surface of the cylinder block is clean, free from damage, and dry. Ensure that the gasket surface of isolating frame (6) is clean and dry.
Ensure that plastic sleeve (3) is squarely installed within new crankshaft rear seal (2).Note: The plastic sleeve is included to protect the lip of the seal as the crankshaft rear seal is pushed over crankshaft flange (1). Do not attempt to install a crankshaft rear seal without the plastic sleeve.
Place the assembly of crankshaft rear seal (2) over crankshaft flange (1). Align dowel (5) with the slot in crankshaft rear seal (2).
Ensure that plastic sleeve (3) is engaged on crankshaft flange (1). Push crankshaft rear seal (2) squarely onto the crankshaft. Ensure that the crankshaft rear seal is seated against the cylinder block. During this process, plastic sleeve (3) will be forced out of the crankshaft rear seal. Discard the plastic sleeve.Note: Ensure that dowel (5) is engaged in the slot in the crankshaft rear seal.
Illustration 3 g03417136
Tightening sequence for the crankshaft rear seal
Illustration 4 g06166514
Use Tooling (A) to install two outer Torx bolts (7) at the base of crankshaft rear seal (2).
Apply pressure crankshaft rear seal (2) to seat the crankshaft rear seal onto the cylinder block. Tighten Torx bolts (7) to a torque of 15 N m (133 lb in).Note: Applying pressure crankshaft rear seal (2) to seat the crankshaft rear seal onto the cylinder block and onto the isolator plate will ensure that the crankshaft rear seal is not damaged as the bolts are tightened.
Use Tooling (B) to install two Torx bolts (4) to crankshaft rear seal (2) at Position (X).
Apply pressure crankshaft rear seal (2) to seat the crankshaft rear seal onto the cylinder block. Tighten Torx bolts (4) to a torque of 22 N m (195 lb in).
Use Tooling (A) to unscrew Torx bolts (7) by one complete turn.Note: Unscrewing Torx bolts (7) by one complete turn will prevent damage to the crankshaft rear seal (2).
Tighten all remaining Torx bolts (4) in the numerical sequence that is shown in Illustration 3. Tighten all Torx bolts (4) to a torque of 22 N m (195 lb in).
Use Tooling (A) to install remaining Torx bolts (7). Tighten all the Torx bolts to a torque of 22 N m (195 lb in).End By:
Install the flywheel housing. Refer to Disassembly and Assembly, "Flywheel Housing - Remove and Install" for the correct procedure.Installation Procedure Without Isolating Frame for the Oil Pan
Table 2
Required Tools
Tool Part Number Part Description Qty
A 194-3536 T40 Torx Socket 1
C - Alignment Tool 1
- Bolts (M8 by 20 mm) 4 Note: The crankshaft rear seal and the housing are manufactured as one assembly.Note: Do not lubricate the crankshaft rear seal or the crankshaft flange. The crankshaft rear seal must be installed dry.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Failure to follow this procedure could lead to the crankshaft rear seal being damaged.