Mazda B-Series 1997 Workshop Manual page 179

ASSEMBLY
* *
PRY FORWARD
1
THRUST
BEARING
PRY CRANKSHAFT FORWARD
MI31 153-A
HOLD PRY CAP
CRANKSHAFT BACKWARD
FORWARD
THRUST
BEARING
,
PRY CAP BACKWARD
MB1154-A
THRU
BEAR
FORWARD
TIGHTEN CAP
2. Install the main bearing caps as follows:
(1) Remove the Plastigage from the journals and bear-
ings.
(2) Apply a liberal amount of clean engine oil to the main
bearings.
(3) Apply sealant to the rear main bearing caps mounting
surface.
(4)
Install the main bearing caps.
Note
Install the main bearing caps in their original
positions.
(5) Pry the crankshaft forward against the thrust surface of
the upper half of the bearing.
(6) Hold the crankshaft cap to the rear. This will align the
thrust surfaces of both halves of .the bearing.
(7) Retain the forward pressure on the crankshaft and
tighten the main bearing cap bolts.
Note
Do not let the crankshaft rotate the bearings.
Tightening torque:
75-45 N m (7.5-4.5 kgf-m, 55--63 ft-lbf)
3. Measure the crankshaft end play.
End play: 0.10-0.20mm (0.004-01.008 in)
4. If the end play exceeds the specif~cation, replace the
crankshaft.