2001 NISSAN PICK-UP tire size

4. Heat cylinder head to 110 to 130ÉC (230 to 266ÉF) and press
service valve guide onto cylinder head.
Projection ªLº:
10.4 - 10.6 mm (0.409 - 0.417 in)
5. Ream valve guide.
Finished size:
6.000 - 6.018 mm (0.2362 - 0.2369 in)
VALVE SEATS
+Before starting this check, confirm that the dimensions of
valve guides and valves are as specified.
+Apply red lead primer on contacting surfaces of valve seat
and of valve face to examine the conditions of contacting
surfaces.
+Check that the paint on contacting surfaces is continuous
along the entire circumference.
+If there are abnormal indications, grind the valve and check
the contact again. If abnormal indications still persist, replace
valve seat.
REPLACING VALVE SEAT FOR SERVICE PARTS
1. Bore out old seat until it collapses. Boring should not con-
tinue beyond the bottom face of the seat recess in cylinder
head. Set the machine depth stop to ensure this.
2. Ream cylinder head recess for service valve seat.
Oversize [0.5 mm (0.020 in)]:
Intake 30.500 - 30.516 mm (1.2008 - 1.2014 in)
Exhaust 29.500 - 29.516 mm (1.1614 - 1.1620 in)
Be sure to ream in circles concentric to the valve guide
center.
This will enable valve seat to fit correctly.
JEM156G
SEM934C
JEM157G
SEM795A
CYLINDER HEADYD25DDTi
Inspection (Cont'd)
EM-3053

Symptom Check items
Except cooling system
parts malfunctionÐ Overload on engineAbusive drivingHigh engine rpm under
no load
Driving in low gear for
extended time
Driving at extremely high
speed
Power train system mal-
function
Ð Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper Ð
Ð Blocked radiator grilleInstalled car brassiere
Mud contamination or
paper clogging
Blocked radiator Ð
Blocked condenser
Ð
Installed large fog lamp
ENGINE COOLING SYSTEMYD25DDTi
Overheating Cause Analysis (Cont'd)
LC-3009

S
S/SIG - Wiring diagram ......................... EC-3375
SMJ (super multiple junction) ................ EL-3198
SRS - See Supplemental Restraint
System .............................................. RS-3003
START - Wiring diagram ....................... EL-3014
STOP/L - Wiring diagram ...................... EL-3043
Seat belt pre-tensioner disposal ........... RS-3011
Seat belt pre-tensioner ......................... RS-3003
Self-diagnostic results ................. EC-3429, 3430
Shift control (Transfer) ........................... TF-3005
Side air bag ........................................... RS-3003
Spiral cable ........................................... RS-3006
Spot lamp .............................................. EL-3055
Start signal ............................................ EC-3374
Starter .................................................... EL-3017
Starting system ...................................... EL-3014
Stop lamp .............................................. EL-3043
Supplemental Restraint System ........... RS-3003
Supplemental restraint system - Wiring
diagram ............................................. RS-3018
Symptom matrix chart ...... EC-3102, 3450, 3451
System readiness test (SRT) code ....... EC-3051
T
TAIL/L - Wiring diagram ........................ EL-3039
THEFT - Wiring diagram ....................... EL-3142
TP/SW - Wiring diagram ....................... EC-3303
TPS - Wiring diagram ................. EC-3174, 3185
TURN - Wiring diagram ......................... EL-3047
Tail lamp ................................................ EL-3039
Theft warning system ............................ EL-3142
Thermostat ............................................ LC-3014
Three way catalyst ................................ EC-3278Throttle bodies ...................................... EM-3008
Throttle chambers ................................. EM-3008
Throttle position sensor (TPS) .... EC-3170, 3182
Throttle position sensor adjustment ...... EC-3086
Throttle position switch ......................... EC-3301
Timing chain ......................................... EM-3021
Tire size .................................................. GI-3007
Turn signal lamp .................................... EL-3047
Two trip detection logic ......................... EC-3049
V
VSS - Wiring diagram ........................... EC-3292
Vacuum hose drawing (Engine
control) .............................................. EC-3022
Valve clearance .................................... EM-3060
Valve guide ........................................... EM-3052
Valve seat ............................................. EM-3053
Valve spring .......................................... EM-3055
Vehicle identification number ................. GI-3005
Vehicle speed sensor
(VSS) ............................ EC-3290, 3484, 3485
W
WARN - Wiring diagram ........................ EL-3083
WINDOW - Wiring diagram ................... EL-3123
Warning lamps ....................................... EL-3081
Water pump ........................................... LC-3012
Wheel size .............................................. GI-3007
Wide open & closed throttle position
switch ...................................... EC-3170, 3182
Wiring diagram (cell code) list ............... EL-3196
Wrist pin - See Piston pin inspection ... EM-3071
ALPHABETICAL INDEX
IDX-3005