Fig. 5: Checking Cylinder'S Compression Pressure
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
HINT:
If adding oil increases the compression, the piston rings and/or cylinder bore may be worn or
damaged.
If pressure stays low, a valve may be stuck or seated improperly, or there may be leakage in
the gasket.
i. Connect the 8 injector connectors.
j. Install the spark plugs.
k. Install the 8 ignition coils.
l. Install the oil level gauge guide.
m. Connect the throttle control motor connector.
n. Install the air cleaner inlet and intake air pipe.
o. Install the V-bank cover.
10.INSPECT CO/HC
a. Start the engine.
b. Rev the engine at 2,500 rpm for approximately 180 seconds.
Fig. 414: Measuring Plastigage At Widest Point
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
i. Measure the Plastigage at its widest point.
Standard oil clearance: 0.021 to 0.047 mm (0.0008 to 0.0019 in.) Maximum oil clearance:
0.059 mm (0.0023 in.)
If the oil clearance is greater than the maximum, replace the bearings. If necessary, replace the
crankshaft.
HINT:If using a standard bearing, replace it with one that has the same number. If the number of
the bearing cannot be determined, select the correct bearing by adding together the numbers
imprinted on the connecting rod cap and crankshaft, then select the bearing with the same number
as the total. There are 6 sizes of standard bearin
gs, marked 2, 3, 4, 5, 6 and 7.
MAXIMUM CLEARANCE
If the oil clearance is greater than the maximum, replace the bearings. If necessary, replace the
crankshaft.
HINT:If using a standard bearing, replace it with one that has the same number. If the number of
the bearing cannot be determined, select the correct bearing by adding together the numbers
imprinted on the cylinder block and crankshaft, then refer to the table on the next page for the
appropriate bearing number. There are 5 sizes of the standard bearings. For No. 1 and No. 5
<005300520056004c0057004c0052005100030045004800440055004c0051004a0056000f000300580056004800030045004800440055004c0051004a00560003005000440055004e0048004700030016000f00030017000f00030018000f00030019000300
44005100470003001a00110003002900520055000300520057[her position bearings, use bearings
marked 1,2,3,4 and 5.
No. 1, No. 5:
No. 1 and No. 50.043 mm (0.0017 in.)
Others0.055 mm (0.0022 in.)
