Inspect Clearance Between Wall Of Ring Groove And New Piston Ring - Toyota 2L-T Repair Manual

ENGINE MECHANICAL
-
Cylinder Block
EM-47
Piston diameter:
2L-T STD mark "1" 91.940
-
91.950 mm
(3.6197
-
3.6201 in.)
STD mark "2" 91.950
-
91.960 mm
(3.6201
-
3.6205 in.)
STD mark "3" 91.960
-
91.970 mm
(3.6205
-
3.6209 in.)
01s
0.50
92.440
-
92.470 mm
(3.6394
-
3.6405 in.)
Piston diameter:
3L STD mark "1" 95.940
-
95.950 mm
(3.7772
-
3.7776 in.)
STD mark "2" 95.950
-
95.960 mm
(3.7776
-
3.7779 in.)
STD mark "3" 95.960
-
95.970 mm
(3.7779
-
3.7783 in.)
01s
0.50
96.440
-
96.470 mm
(3.7968
-
3.7980 in.)
(b) Measure the cylinder bore diameter in the thrust
directions. (See page EM-46)
(c) Subtract the piston diameter measurement from the
cylinder bore diameter measurement.
Front
Mark
1,201-3
EM5482 EM568C
Standard oil clearance:
0.050
-
0.070 mm
(0.0020
-
0.0028 in.)
Maximum oil clearance: 0.14 mm (0.0055 in.)
I f the oil clearance is greater than maximum, replace all
four pistons and rebore all four cylinders. I f necessary,
replace the cylinder block.
HINT (Use cylinder block subassembly): When installing
a standard piston, install one with the same number mark
as the standard bore diameter mark on the cylinder block.
INSPECT CLEARANCE BETWEEN WALL OF RING
GROOVE AND NEW PISTON RING
(No. 1 Ring)
Install a No. 1 piston ring to the piston. Using a feeler
gauge, measure the clearance between the piston ring and
wall of the piston ring groove.
Standard ring groove clearance:
No. 1 0.028
-
0.077 mm (0.001 1
-
0.0030 in.)
Maximum ring groove clearance:
0.20 mm (0.008 in.)
I f the clearance is greater than maximum, replace the
piston.