Isuzu engine C22NE / 22LE / 20LE. Manual — part 17

6A-50 ENGINE MECHANICAL (C22NE, 22LE, 20LE)

Seal Ring, Crankshaft
(Oil Pump Housing)

Removal

1.

Remove toothed belt rear cover according to the
corresponding operation.

2.

Remove sealing ring by making hole in middle of ring,
turning in self-tapping screw and edging out.

Installation

1

Install the protective sleeve to the crankshaft.

2.

Coat the sealing lip with protective grease.

3.

Install the sealing ring.

4.

Install the sealing ring using 5-8840-0455-0.

5.

Install the rear toothed belt cover and toothed belt
according to the corresponding operations.

6.

Replace the sealing ring with a new one.

7.

Tighten the belt to the crankshaft.

Seal Ring, Crankshaft Rear

Removal

1.

Remove transmission and clutch.

2.

Remove flywheel or flex plate according to the
corresponding operations.

3.

Make hole in middle of sealing ring, turn in self-tapping
screw and edge out.

Installation

1.

Install protective sleeve.

2.

Coat sealing lip with Protective Grease.

3.

Install sealing ring using 5-8840-0459-0 and 5-8840-
2597-0.

4.

Install flywheel, clutch and transmission.

ENGINE MECHANICAL (C22NE, 22LE, 20LE) 6A-51

Reassembly

Reassemble clutch assembly.

Disassembly

Disassemble clutch assembly to flywheel using 5-8840-2634-0

Torque Angle-Method

Clutch assembly to flywheel-17.6Nm/1.8 kgf

m.

Gasket, Oil Pan

Removal

1.

Loosen fixing bolts.

2.

Remove oil pan from oil pump and cylinder block.

3.

Remove oil intake pipe, oil intake pipe bracket, and oil
baffle plate.

Clean

Sealing surfaces.

Installation

1.

Apply a bead of Sealing Compound, TB120TC or
eguivalent to joint of oil pump.

2.

Install baffle plate, or reuse baffle plate with valcanized
gasket.

Caution

Baffle plates with valcanized gasket can be retrofitted without

difficulty - replace baffle plate with gasket.

3.

Install oil intake pipe to oil pump and oil intake pipe
bracket to cylinder block.

4.

Install oil pan and new gasket to cylinder block and insert
bolts with Locking Compound 15 10 177 (90 167 347).
Maximum assembly time including torque check is 10
min.

6A-52 ENGINE MECHANICAL (C22NE, 22LE, 20LE)

Tighten (Torque)

Oil intake pipe to oil pump -8N

⋅

m (0.8 kgf

⋅

m)

Oil intake pipe bracket to cylinder block - 6 N

⋅

m (0.6 kgf

⋅

m)

Oil pan to cylinder block - 8 N

⋅

m (0.8 kgf

⋅

m) with vulcanized

gasket - 15 N

⋅

m (1.5 kgf

⋅

m)

ENGINE MECHANICAL (C22NE, 22LE, 20LE) 6A-53

OPERATIONS ON CRANK DRIVE

Con-Rod Bearing

Removal

1.

Remove oil pan according to the corresponding
operation.

2.

Remove con-rod bearing cap and con-rod bearing after
marking both sides.

Clean

Con-rod journal, con-rod bearing cap

Installation

1.

Install new bearing shafts lightly coated with engine oil.

2.

Install con-rod bearing cap.

Torque-Angle Method

Con-rod bearing cap to con-rod - 35N

⋅

m (3.5 kgf

⋅

m) +45

°

to

60

°

Important!

Use new bolts.

3.

Install oil pan according to the corresponding operation.

Piston with Con-Rod

Removal

1.

Remove cylinder head and oil pan according to the
corresponding operations.

2.

Remove piston with con-rod after marking con-rod
bearing cap.

Inspection

Remove and install all parts, if applicable.

Important!

Ring gap offset:
Piston rings - 180

°

.

Oil scraper rings - 25 to 50 mm/1 to 2 in. from gap of

intermediate ring to the left and to the right.