oil NISSAN PATROL 1998 Y61 / 5.G Manual Transmission Workshop Manual

MANUAL TRANSMISSION
SECTION
MT
CONTENTS
PREPARATION................................................................1
Special Service Tools ..................................................1
Commercial Service Tools ...........................................2
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................................3
NVH Troubleshooting Chart.........................................3
ON-VEHICLE SERVICE..................................................4
Replacing Rear Oil Seal ..............................................4
Position Switch Check .................................................4
REMOVAL AND INSTALLATION....................................5
Removal .......................................................................5
Installation ....................................................................6
DESCRIPTION.................................................................7
Cross-sectional View ...................................................7
AIR BREATHER..............................................................8
Air Breather Piping ......................................................8
MAJOR OVERHAUL.......................................................9Case Components .......................................................9
Gear Components .....................................................10
Shift Control Components .........................................12
DISASSEMBLY..............................................................13
Case Components .....................................................13
Shift Control Components .........................................14
Gear Components .....................................................15
INSPECTION..................................................................19
Shift Control Components .........................................19
Gear Components .....................................................19
ASSEMBLY....................................................................21
Gear Components .....................................................21
Shift Control Components .........................................29
Case Components .....................................................29
SERVICE DATA AND SPECIFICATIONS (SDS)..........32
General Speci®cations ...............................................32
Inspection and Adjustment ........................................33
MT

Special Service Tools
Tool number
Tool nameDescription
ST23540000
Pin punch
NT442
Removing and installing retaining pin
a: 2.3 mm (0.091 in) dia.
b: 4 mm (0.16 in) dia.
ST30031000
Puller
NT411
Removing 1st & 2nd synchronizer assembly
Removing counter gear rear thrust bearing
Removing main drive gear bearing
a: 90 mm (3.54 in) dia.
b: 50 mm (1.97 in) dia.
ST33230000
Drift
NT084
Removing mainshaft and counter gear
a: 51 mm (2.01 in) dia.
b: 28.5 mm (1.122 in) dia.
ST22350000
Drift
NT065
Removing and installing mainshaft rear bear-
ing
Removing counter gear front bearing
(Use with KV38100300)
a: 34 mm (1.34 in) dia.
b: 28 mm (1.10 in) dia.
KV38100300
Drift
NT065
Removing counter gear front bearing
(Use with ST22350000)
Installing counter gear rear bearing
a: 54 mm (2.13 in) dia.
b: 32 mm (1.26 in) dia.
ST30720000
Drift
NT115
Removing mainshaft front bearing
Installing mainshaft front bearing
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
ST33210000
Drift
NT084
Installing counter gear front bearing
Installing front cover oil seal
a: 44 mm (1.73 in) dia.
b: 24.5 mm (0.965 in) dia.
ST30613000
Drift
NT073
Installing main drive gear bearing
a: 71.5 mm (2.815 in) dia.
b: 47.5 mm (1.870 in) dia.
PREPARATION
MT-1

NVH Troubleshooting Chart
Use the chart below to help you ®nd the cause of the symptom. The numbers indicate the order of the inspec-
tion. If necessary, repair or replace these parts.
Reference page
FS5R30A
Refer to MA section (``Checking M/T Oil'',
``CHASSIS AND BODY MAINTENANCE'').
MT-9
MT-9
MT-12
MT-12
MT-10
MT-10
MT-10
MT-10
SUSPECTED PARTS (Possible cause)
Transmission model
OIL (Level low)
OIL (Wrong)
OIL (Level too high)
LIQUID GASKET (Damaged)
OIL SEAL (Worn or damaged)
CHECK PLUG RETURN SPRING AND
CHECK BALL (Worn or damaged)
SHIFT FORK (Worn)
GEAR (Worn or damaged)
BEARING (Worn or damaged)
BAULK RING (Worn or damaged)
INSERT SPRING (Damaged)
SymptomNoise 1 2 3 3
Oil leakage3122
Hard to shift or will not shift 1 1 2 2
Jumps out of gear 1 2 2
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING
MT-3

Replacing Rear Oil Seal
REMOVAL
1. Remove transfer assembly. Ð Refer to TF section.
2. Pull out rear oil seal.
INSTALLATION
1. Install rear oil seal.
+Before installing apply multi-purpose grease to seal lip.
2. Install transfer assembly. Ð Refer to TF section.
Position Switch Check
Switch Gear position Continuity
Reverse position switchReverse Yes
Except reverse No
Neutral position switchNeutral Yes
Except neutral No
SMT321B
SMT322B
SMT274D
ON-VEHICLE SERVICE
MT-4

Removal
1. Remove front and rear propeller shafts. Refer to PD section
(``Removal and Installation'', ``PROPELLER SHAFT'').
2. Remove clutch operating cylinder.
3. Remove exhaust front and rear tubes. Refer to FE section
(``EXHAUST SYSTEM'').
4. Disconnect vehicle speed sensor, back-up lamp switch, 4WD
switch and neutral position switch harness connector.
5. Remove center brake cable. Refer to BR section.
6. Remove shift lever of transmission. Refer to MT-12 (RS5R30A).
7. Remove transfer control lever. Refer to TF section (``Removal'',
``REMOVAL AND INSTALLATION'').
8. Support engine by placing a jack under oil pan.
+Do not place jack under the oil pan drain plug.
9. Remove transmission with transfer from engine.
WARNING:
Support Manual Transmission with transfer, while removing it.
SMT321D
REMOVAL AND INSTALLATION
MT-5

5. Remove front cover and gasket.
6. Remove stopper ring and main drive bearing snap ring.
7. Remove transmission case by tapping lightly.
8. Remove front cover oil seal.
Shift Control Components
1. Mount adapter plate on vise.
2. Remove OD & reverse fork rod.
SMT370A
SMT371A
SMT822C
SMT392A
SMT823C
DISASSEMBLY
Case Components (Cont'd)
MT-14

Shift Control Components
1. Install OD fork rod and OD shift fork. Then install retaining pin
into OD shift fork.
2. Install 1st & 2nd, 3rd & 4th and reverse shift fork onto coupling
sleeve.
3. Install striking rod into hole of shift forks, striking lever and
interlock and then install retaining pin into striking lever.
+Make sure that striking rod moves smoothly.
Case Components
1. Install front cover oil seal.
+Apply multi-purpose grease to seal lip.
2. Install selected counter gear front bearing shim onto transmis-
sion case.
+Apply multi-purpose grease.
3. Apply sealant to mating surface of transmission case.
4. Install gear assembly onto transmission case.
5. Install check spring and check ball into interlock stopper.
+Apply multi-purpose grease to check ball.
6. Install interlock stopper assembly and then tighten check ball
plug.
+Apply sealant to thread of check ball plug.
SMT834C
SMT374AA
SMT393AA
SMT835C
SMT460A
ASSEMBLY
MT-29

General Speci®cations
Applied modelRD28ETi
4WD
Transmission FS5R30A
Number of speed 5
Transmission control Floor direct
Shift pattern
Synchromesh type Warner
Gear ratio
1st 4.061
2nd 2.357
3rd 1.490
4th 1.000
OD 0.862
Reverse 4.125
Number of teeth
Mainshaft
Drive 20
1st 32
2nd 30
3rd 28
OD 23
Reverse 30
Countershaft
Drive 33
1st 13
2nd 21
3rd 31
OD 44
Reverse 12
Reverse idler gear 22
Oil capacity!(Imp pt) 5.1 (9)
Remarks2nd & 3rd double baulk ring
type synchronizer
Reverse breaking mechanism type
SERVICE DATA AND SPECIFICATIONS (SDS)
MT-32