Mazda 121 Workshop Manual page 91

INSPECTION / REPAIR
5. Measurethe iournal diameters X and Y directions at the two
points (@ and @) shown.
Diameter
Out of round: 0.05mm (0.002 in) max,
6. Measure the oilclearances between lhe camshaft and cyl
inder head.
{1) Remove all ioreign material and oil from the journals and
the camshaft bore.
(2) lvleasure the camshaft bore diameter.
0 3 u 0 8 1 1 0 5
Diameler
mm (in)
(3) Subtract the journal diameter lrom the bore diameter.
Oil clealance
B3
No.1 & No.5
43.500-43.525
0.7r26-1.7135)
N o . 2 , N o 3 , N o 4
43.500-43.525 (1.7126-1.7135)
No.1 & No.5
0.040 0.085 (0.0016 0_0033)
N o 2 & N o 4
0.050 0.100 (0.0019 0.0039)
No-3
0.065-0.1 1 5 (0.0a25-0.0045)
0.15 (0.006)
(4) li the clearance exceeds the maximum, replace the cam-
shaft or cylinder head
7. Measure the camshaft end play. lf it exceeds the maximum,
reolace the thrust olate or camshaft.
End play : 0.060-0.200mm (0.0023-0.0078 in)
Maxlmumr 0.2mm (0.007 in)
B3
No.l & No.s
43.440*43.460 (1.7102-17.1 10)
No-2 & No.4
43.425-43.450 (1.7096-1.7106)
No.3
43.4 1 O 43.435 11.7O9 1, 1.7 1 OO)
B-53