Mazda L8 Workshop Manual page 49

6. Set the SST as shown, then measure the gear
backlash using a dial gauge.
• If the backlash exceeds the specified range,
remeasure the backlash and, using the
adjustment shim selection table, select the
proper shim, according to the following
procedure.
Caution
• • • • When measuring the backlash, rotate the
crankshaft one full rotation and verify
that it is within the specified range at all
of the following six positions: 10° ° ° ° , 30° ° ° ° ,
100° ° ° ° , 190° ° ° ° , 210° ° ° ° , 280° ° ° ° ATDC.
Value range:
0.005—0.101 mm {0.00019—0.0039 in}
(1) Using master adjustment shim (No.50), assemble the balancer unit to the cylinder block, then measure the
backlash.
(2) Select the proper adjustment shim according to the measured value.
(3) Install the selected adjustment shim to the balancer unit, then assemble the balancer unit to the cylinder
block.
Adjustment shim selection table
Backlash Selection shim
mm {in}
0.256—0.262
{0.0100—0.01031}
0.249—0.255
{0.0098—
0.010039}
0.242—0.248
{0.0096—0.00976}
0.235—0.241
{0.0093—0.0948}
0.228—0.234
{0.00897—
0.00921}
0.221—0.227
{0.00870—
0.00893}
0.214—0.220
{0.00842—
0.00874}
0.207—0.213
{0.00814—
0.00838}
0.200—0.206
{0.00787—
0.00811}
0.193—0.199
{0.00759—
0.00783}
0.186—0.192
{0.00732—
0.00755}
0.179—0.185
{0.00704—
0.00728}
B–32
Shim thickness
(No.) mm {in}
15 1.15 {0.0452}
16 1.16 {0.0456}
17 1.17 {0.0460}
18 1.18 {0.0464}
19 1.19 {0.0468}
20 1.20 {0.0472}
21 1.21 {0.0476}
22 1.22 {0.0480}
23 1.23 {0.0484}
24 1.24 {0.0488}
25 1.25 {0.492}
26 1.26 {0.496}
ENGINE
Backlash
mm {in}
0.116—0.122
{0.00456—
0.00480}
0.109—0.115
{0.00429—
0.00452}
0.102—0.108
{0.00401—
0.00425}
0.095—0.101
{0.00374—
0.00397}
0.088—0.094
{0.00346—
0.00370}
0.081—0.087
{0.00318—
0.00342}
0.074—0.080
{0.00291—
0.00314}
0.067—0.073
{0.00263—
0.00287}
0.060—0.066
{0.00236—
0.00259}
0.053—0.059
{0.00208—
0.00232}
0.046—0.052
{0.00181—
0.00204}
0.039—0.045
{0.00153—
0.00177}
Selection shim Shim thickness
(No.) mm {in}
35 1.35 {0.0531}
36 1.36 {0.0535}
37 1.37 {0.0539}
38 1.38 {0.0543}
39 1.39 {0.0547}
40 1.40 {0.0551}
41 1.41 {0.0555}
42 1.42 {0.0559}
43 1.43 {0.0562}
44 1.44 {0.0566}
45 1.45 {0.0570}
46 1.46 {0.0574}
AME2224E060