Mazda 1990 323 Workshop Manual Supplement page 564

TD
TECHMCAL DATA
Item
Piston
Engine
BP SOHC
Piston diameter
Standard size 82.954-82.974 (3.2659-3.2667)
d
Measured at 90° to pin
bore axis and 16.5mm
(0.650 in) below oil ring
0.25 (0.010) oversize 83.21 l-83.21 7 (3.2760-3.2763)
groove
mm (in)
0.50 (0.020) oversize 83.461-83.467 (3.2859-3.2861)
Piston-to-cylinder clearance mm (in)
Standard
0.039-0.052 (0.0015-0.0020)
Maximum 0.15 (0.006)
I
Piston rina
I
Thickness
mm (in)
Top
1.47-l .49 (0.0579-0.0587)
Second
f
1.47-l .49 t0.0579-0.0587)
Top
End gap Second
(Measured in cylinder)
mm (in) Oil (rail)
Maximum
Top
Ring groove width in piston
mm (in) Second
Oil
, Piston ring-to-ring groove clearance
Top
I
!
mm (in)
Second
Maximum
O.l5-0.36 (0.006-0.012) '
0.15-0.30 (0.006-0.012)
0.20-0.70 (0.008-0.028)
1 .o (0.039)
t.520- 1.535 (0.0598-o -0604)
1.520-l .535 (0.0598-0.0604)
3.02-3,04 (0.1189-0.1197)
0.030-0.065 (0.0012-0.0026)
0.030-0.065 (0.0012-0.0026)
f
0,15 (0.006)
b
mm (in) 1 19.974-l 9.980 (0.7864-0.7866)
Piston pin
Diameter
Interference in connecting rod mm (in) 0.013-0.037 (0.0005-0.0015)
Installing pressure
N (kg, lb)
4,905-l 4,7t 5 (500-I ,500, 1 ,I oo-3,300)
Connecting rod and connecting rod bearing
Length (Center to center) mm (in) 132.85-l 32.95 (5.2303-5.2342)
Bending
mm (in) 0.075 (0.0030) max./50 (1.97)
v
Small end bore mm (in1 19.943-19.961 (0.7852-Om7859)
1 Big end bore
mm (in) 1
48.000-48.016 (1.8898-l -8904)
I
Big end width
mm (in) 21.838-21.890 (0.8598-0.8618)
Connecting rod side clearance
mm (in) L
Standard 0.110-0.262 (0.0043-0.0103)
i
Maximum 0.30 (0.012)
i
I -Crankshaft
I
Crankshaft runout
mm (in> 0.04 (0.0016) max.
Standard
Standard 49.938-49.956 (1.9661-l .9668)
size
Minimum 49.904 (I -9647)
Main journal diameter
0.25 (0.010)
Standard 49.704-49.708 (1.9568-l .9570)
mm (in)
undersize
Minimum
49.652 (1.9548)
0.50 (0.020)
Standard 49.454-49.458 (1.9470-l .9472)
undersize
Minimum 49.402 (I .9450)
Main journal taper and out-of-round
mm (in) 0.05 (0.020) max.
Standard
Standard
44.940-44.956 (1.7693- 1.7699)
size
Minimum I 44.908 (I.76801
Crankpin
Crankoin
0.25 (0.010)
Standard 44.690-44.706 (1.7594-l -7601)
diameter mni (in)
undersize
Minimum 44.658 (1.7582)
0.50 (0.020)
Standard 44.440-44.456 (1.7496-l .7502)
undersize
Minimum 44.408 (1.7483)
0.75 (0.030)
Standard 44.190-44.206 (1.7398- 1.7404)
undersize
Minimum 44.158 (1.7385)
taoer and out-of-round
mm rinl I 0.05 to.0201 max.
Main bearing
Main journal bearing oil clearance
Standard
0.018-0.036 (0.0007-0.0014)
mm (in> Maximum
0. IO (0.004)
-
Available undersized bearina
mm rinl 0.25 /O.OlO). O-50 to.0201
TD-4