1998 NISSAN PATROL check oil

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

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

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