Isuzu N-Series. Service manual — part 505
Engine Mechanical (4HK1-TC) 6A-125
Installation
1. Install the crankshaft front slinger.
• Press-fit the slinger using an oil seal installer
kit.
Legend
1. Front Slinger
2. Adapter (Front)
3. Fixing Bolt
4. Sleeve (Front)
5. Washer (Front)
6. Center Bolt
Special tool
Oil seal installer kit: 5-8840-2703-0 (J-43282)
(Use the parts listed below for the front oil seal.)
• Insert the front slinger into the end of the
adapter and fit them on the crankshaft.
• Put the sleeve over the adapter, place a washer
on the center bolt and tighten the bolt until the
sleeve touches the adapter to press fit the front
slinger.
• After you have pressed the front slinger, confirm
the measurement shown (depth from the end
surface of the crankshaft to the flange of the
slinger) and check for deflection of the slinger.
Caution:
Be careful not to put the slinger inside out or mistake
front side slinger for 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. Adapter
2. Sleeve
3. Slinger
4. 40.5
± 0.3 mm (1.594 ± 0.012 in)
5. 34
± 0.1 mm (1.339 ± 0.004 in)
No.
Part Name
Slinger
Oil seal
1
Sleeve (front)
{
{
2
Adapter (front)
{
{
3
Adapter ring (front)
—
{
4
Washer (front)
{
{
5
Center bolt
{
{
6
Fixing bolt
{
{
N6A6237E
N6A6238E
N6A6239E
6A-126 Engine Mechanical (4HK1-TC)
2. Install the crankshaft front oil seal.
• Press fit the oil seal using an oil seal installer
kit.
Legend
1. Oil Seal
2. Adapter (Front)
3. Adapter Ring (Front)
4. Fixing Bolt
5. Sleeve (Front)
6. Washer (Front)
7. Center Bolt
• Mount the adapter onto the crankshaft with
fixing bolts.
Legend
1. Adapter
• Apply engine oil to the lip of the oil seal and
place it on the front side adapter.
• Put the front side adapter ring in the sleeve and
fix the sleeve on the adapter with the center bolt
and a washer.
• Tighten the bolt until the sleeve touches the
adapter to press fit the front oil seal.
Legend
1. Oil Seal
2. Adapter Ring
3. Sleeve
4. Bolt and Washer
N6A6240E
N6A6241E
N6A6242E
N6A6238E
Engine Mechanical (4HK1-TC) 6A-127
• After you have press-fitted the front oil seal,
confirm the measurement shown (depth from
the end surface of the crankshaft to the oil seal)
and check for deflection of the oil seal.
Legend
1. Adapter Ring
2. Sleeve
3. Adapter
4. Oil Seal
5. 31
± 0.3 mm (1.220 ± 0.012 in)
3. Install the crankshaft pulley.
• Apply engine oil to the threads of the fastening
bolts.
• Install the crankshaft pulley aligning with the
dowel pins on the crankshaft.
• Tighten in the sequence shown.
Tighten:
Bolt to 200 N
⋅m (20.4 kg⋅m/148 lb⋅ft)
4. Install the fan belt.
• When adjusting the fan belt, you should also
adjust ACG belt and air conditioner belt at the
same time.
• Fit the fan belt and adjust the tension following
the below procedures.
• Refer to “Drive Belt” in Section 6B for details of
the belt tension adjustment.
a. Inspection of fan belt deflection
• Check with a scale if the belt deflection is
within the specified limits when pressure of
98 N (22 lb) is applied mid-way along the
belt’s longest run. Also check the belt for
damage.
Legend
1. Crankshaft Pulley
2. Generator
3. Fan Pulley
b. Adjustment of the fan belt
• Loosen (2) and (3), adjust the fan belt
moving the generator.
Tighten:
Bolt (2) to 24 N
⋅m (2.4 kg⋅m/18 lb⋅ft)
Bolt (3) to 40 N
⋅m (4.1 kg⋅m/30 lb⋅ft)
N6A6243E
N6A6244E
Fan belt deflection
mm (in)
New belt
8 – 12 (0.31 – 0.47)
Reused belt
10 – 14 (0.39 – 0.55)
A/C belt deflection
mm (in)
New belt
16 – 20 (0.630 – 0.787)
Reused belt
18 – 22 (0.709 – 0.866)
N6A6245E
6A-128 Engine Mechanical (4HK1-TC)
Legend
1. Adjustment Bolt
2. Fixing Nut
3. Fixing Bolt
5. Tighten the fan assembly to the specified
tightening torque.
Tighten:
Nuts to 24 N
⋅m (2.4 kg⋅m/18 lb⋅ft)
6. Install the radiator.
• Attach right and left brackets of the radiator to
the brackets on the frame as illustrated.
Tighten:
Brackets to 55 N
⋅m (5.6 kg⋅m/41 lb⋅ft)
Rigid suspension model
Legend
1. Flange Nut
2. Rubber
3. Stud Bolt
4. Frame Side Bracket
5. Radiator Side Bracket
6. Washer
7. Connect the lower radiator hose.
8. Connect the coolant reserve tank hose.
9. Connect the upper radiator hose.
10. Install the starter in the clutch housing with bolts
and tighten to the specified tightening torque.
Tighten:
Bolt to 76 N
⋅m (7.7 kg⋅m/56 lb⋅ft)
• Connect the starter ground cable.
• Connect the front frame harness connector.
11. Refill the radiator with coolant.
N6A6246E
N6A6233E
N6A6247E
N6A6216E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст