1996 TOYOTA T100 adding oil

Downloaded from www.Manualslib.com manuals search engine EM06R−03
P15972
Compression Gauge
− ENGINE MECHANICAL (3RZ−FE)COMPRESSION
EM−3
718 Author: Date:
1996 TOYOTA T100 (RM449U)
COMPRESSION
INSPECTION
HINT:
If there is lack of power, excessive oil consumption or poor fuel
economy, measure the compression pressure.
1. WARM UP AND STOP ENGINE
2. REMOVE INTAKE AIR CONNECTOR
(See page EM−65)
3. DISCONNECT HIGH−TENSION CORDS FROM
SPARK PLUGS
NOTICE:
Pulling on or bending the cords may damage the conductor
inside.
4. REMOVE SPARK PLUGS
5. CHECK CYLINDER COMPRESSION PRESSURE
(a) Insert a compression gauge into the spark plug hole.
(b) Fully open the throttle.
(c) While cranking the engine, measure the compression
pressure.
HINT:
Always use a fully charged battery to obtain engine speed of
250 rpm or more.
(d) Repeat steps (a) through (c) for each cylinder.
NOTICE:
This measurement must be done in as short a time as pos-
sible.
Compression pressure:
1,230 kPa (12.5 kgf/cm
2, 178 psi) or more
Minimum pressure:
880 kPa (9.0 kgf/cm
2, 127 psi)
Difference between each cylinder:
98 kPa (1.0 kgf/cm
2, 14 psi) or less
(e) If the cylinder compression in one or more cylinders is low,
pour a small amount of engine oil into the cylinder through
the spark plug hole and repeat steps (a) through (c) for
cylinders with low compression.
If adding oil helps the compression, chances are
that the piston rings and/or cylinder bore are worn
or damage.
If pressure stays low, a valve may be sticking or
seating is improper, or there may be leakage past
the gasket.

Downloaded from www.Manualslib.com manuals search engine EM06C−05
P21054
EM−2
− ENGINE MECHANICAL (5VZ−FE)COMPRESSION
821 Author: Date:
1996 TOYOTA T100 (RM449U)
COMPRESSION
INSPECTION
HINT:
If there is lack of power, excessive oil consumption or poor fuel
economy, measure the compression pressure.
1. WARM UP AND STOP ENGINE
Allow the engine to warm up to normal operating temperature.
2. REMOVE HIGH−TENSION CORDS WITH IGNITION
COILS (See page IG−1)
3. REMOVE SPARK PLUGS
4. CHECK CYLINDER COMPRESSION PRESSURE
(a) Insert a compression gauge into the spark plug hole.
(b) Fully open the throttle.
(c) While cranking the engine, measure the compression
pressure.
HINT:
Always use a fully charged battery to obtain engine speed of
250 rpm or more.
(d) Repeat steps (a) through (c) for each cylinder.
NOTICE:
This measurement must be done in as short a time as pos-
sible.
Compression pressure:
1,200 kPa (12.2 kgf/cm
2, 174 psi) or more
Minimum pressure:
1,000 kPa (10.2 kgf/cm
2, 145 psi)
Difference between each cylinder:
100 kPa (1.0 kgf/cm
2, 15 psi) or less
(e) If the cylinder compression in 1 or more cylinders is low,
pour a small amount of engine oil into the cylinder through
the spark plug hole and repeat steps (a) through (c) for
cylinders with low compression.
If adding oil helps the compression, it is likely that
the piston rings and/or cylinder bore are worn or
damaged.
If pressure stays low, a valve may be sticking or
seating is improper, or there may be leakage past
the gasket.
5. REINSTALL SPARK PLUGS

Downloaded from www.Manualslib.com manuals search engine Z04969
Mark
1, 2 or 3
Mark
1, 2, 3, 4 or 5 No. 1
No. 2
No. 3
No. 4
Mark 0, 1 or 2Mark F
No. 1
No. 2
No. 3
No. 4
No. 4
Crank Pin
No. 3 Crank Pin
5 Cylinder block
Crankshaft
Use bearingNumber marked
1
1
111
000 2
2
2
222 3
333
44
EXAMPLE: Cylinder block ”2” + Crankshaft ”1”
= Total number 3 (Use bearing ”3”)
− ENGINE MECHANICAL (5VZ−FE)CYLINDER BLOCK
EM−89
1996 TOYOTA T100 (RM449U)
Standard clearance:
No.1
STD0.020 − 0.038 mm (0.0008 − 0.0015 in.)
U/S 0.250.019 − 0.059 mm (0.0007 − 0.0023 in.)
Others
STD0.024 − 0.042 mm (0.0009 − 0.0017 in.)
U/S 0.250.023 − 0.063 mm (0.0009 − 0.0025 in.)
Maximum clearance:
0.08 mm (0.0031 in.)
HINT:
If replacing the cylinder block subassembly, the bearing stan-
dard clearance will be:
No.1
0.010 − 0.049 mm (0.0004 − 0.0020 in.)
Others
0.014 − 0.053 mm (0.0006 − 0.0021 in.)
If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, grind or replace the crankshaft.
HINT:
If using a standard bearing, replace with one having the same
number. If the number of the bearing cannot be determined, se-
lect the correct bearing by adding together the numbers im-
printed on the cylinder block and crankshaft, then selecting the
bearing with the same number as the total. There are 5 sizes
of standard bearings, marked ”1”, ”2”, ”3”, ”4” and ”5” according-
ly.
Reference:
Standard sized bearing center wall thickness:
No.1
Mark ”1”1.991 − 1.994 mm (0.0784 − 0.0785 in.)
Mark ”2”1.994 − 1.997 mm (0.0785 − 0.0786 in.)
Mark ”3”1.997 − 2.000 mm (0.0786 − 0.0787 in.)
Mark ”4”2.000 − 2.003 mm (0.0787 − 0.0789 in.)
Mark ”5”2.003 − 2.006 mm (0.0789 − 0.0790 in.)