Isuzu N-Series. Service manual — part 506
Engine Mechanical (4HK1-TC) 6A-129
Torque Specifications
Special Tool
N6A6248E
Illustration
Tool Number /
Description / Remarks
5-8840-2230-0
(EN-47680)
Crankshaft Stopper
8-9439-6858-0 (J-43285)
Slinger Puller
5-8840-2703-0 (J-43282)
Oil Seal Installer Kit
6A-130 Engine Mechanical (4HK1-TC)
Crankshaft Rear Oil Seal
Component
Legend
1. Starter
2. Transmission Assembly
3. Clutch Pressure Plate Assembly (MT)
4. Clutch Plate Assembly (MT)
5. Flywheel (MT)
6. Crankshaft Rear Oil Seal
7. Crankshaft Rear Slinger
8. Flexible Plate (Smoother)
9. Crankshaft End Spacer (Smoother)
Removal
1. Remove the flywheel.
Refer to “Flywheel”.
2. Remove the crankshaft rear oil seal.
N6A6249E
Engine Mechanical (4HK1-TC) 6A-131
• Remove only the oil seal off with a screwdriver
or the like avoiding damage to the oil seal
contact surface on the flywheel housing and the
shaft.
Legend
1. Felt
2. Slinger
3. Oil Seal
3. Remove the crankshaft slinger.
• Pull out the slinger using a slinger puller.
(Fixing the circumference of the puller with a
clip band will make the procedure easier.)
Special tool
Slinger puller: 8-9439-6858-0 (J-43285)
Installation
1. Install the crankshaft rear slinger.
• Press fit the rear sling using the oil seal installer
kit.
Legend
1. Rear Slinger
2. Fixing Bolt
3. Center Bolt
4. Sleeve (Rear)
5. Collar (Rear)
6. Adapter (Rear)
Special tool
Oil seal installer kit: 5-8840-2703-0 (J-43282)
N6A6235E
N6A6250E
No.
Part Name
Slinger
Oil seal
1
Sleeve (rear)
{
{
2
Adapter (rear)
{
{
3
Collar (rear)
{
{
4
Adapter ring (rear)
—
{
5
Center bolt
{
{
6
Fixing bolt
{
{
N6A6251E
6A-132 Engine Mechanical (4HK1-TC)
• Insert the rear slinger into the end of the rear
side adapter and mount the adapter on the
crankshaft with the fixing bolt with a collar
placed on it.
Legend
1. Collar
2. Fixing Bolt
3. Adapter
• Put a sleeve over the adapter and tighten the
center bolt until the sleeve touches the adapter
to press fit the rear slinger.
• After you have press-fitted the rear slinger,
confirm the measurement shown (depth from
the end surface of the crankshaft to the slinger)
and check for deflection of the slinger.
Caution:
Be careful not to put the slinger inside out or mistake
the front slinger for the rear one, and vice versa. Rear
side slinger has four right-hand threads on it while front
one has four left-hand threads. Slinger and oil seal
should always be replaced in pairs.
Legend
1. Rear Part of The Crankshaft
2. Adapter
3. 17.3
± 0.3 mm (0.681 ± 0.012 in)
4. 10.8
± 0.1 mm (0.425 ± 0.004 in)
5. Slinger
6. Sleeve
7. Collar
2. Install the crankshaft rear oil seal.
• Press-fit the rear oil seal using an oil seal
installer kit.
Legend
1. Adapter (Rear)
2. Fixing Bolt
3. Center Bolt
4. Sleeve (Rear)
5. Collar (Rear)
6. Adapter Ring (Rear)
7. Oil Seal
1
2
3
N6A6252E
N6A6253E
N6A6254E
N6A6255E
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