Rear Oil Seal Installation; Piston Pins Installation - Mazda B-Series 1997 Workshop Manual

ASSEMBLY
.
,
, ,
, ,
FRONT
CF
ENGINE
FRONT OF E
NOTCH POINTING TOWARD
RONT OF ENGINE
SQUIRT HOLE
NUMBER OF LEFT
SIDE OF ROD
MB1040-A 4BUOB1-115
(4) lnstall the main bearing caps as shown in the figure.
(5) Tighten the main bearing cap bolts in three steps.
Note
Caps must be seated prior to bolt installation.
Do not let the crankshaft rotate the bearings.
Tightening torque:
Step 1: Tighten all bolts by hand until seated
Step 2: 68-81 N m (6.9-8.1 kgf
.
m, 50-59 ft
.
lbf)
Step
3:
102-11 5 N - m (10.4--11.7 kgf .m, 75-85 ft.Ibf)
3. Measure the crankshaft end play
End play: 0.01--0.2mm, (0.0044.008 in)
Maximum: 0.3mm (0.01 2 in)
4.
If the end play exceeds the maximum, grind the crankshaft
and install an oversize thrust bearing, or replace the
crankshaft and thrust bearing.
Rear oil seal
1. Lubricate rear oil seal and mating surface with clean
engine oil before installation.
2. Install the rear main oil seal using the SST.
Caution
The rear face of the seal must be within 0.508mm
(0.019 in) of the rear face of the block.
Note
Apply asmall amount of clean engine oil on the new
oil seal and the seal mating surface.
Install the new oil seal with the spring side toward
the engine.
Piston pins
1. Start the piston pin into the piston and connecting rod; this
may require a light tap with a mallet.
2. Finish installing piston pin into piston using Piston Pin
Remover and Replacer T68P-6135-A, or equivalent until
the pin is centered in the piston.
Note
Assemble the piston to the connecting rod with the
oil squirt holes on the side of the connecting rod
and the arrow in the piston positioned as shown.
Piston pins must be installed in the original piston
from which they were removed.