SECTION 10 -- ENGINE -- CHAPTER 1
61
-- Remove the support caps.
The clearance between the main bearings and the
relevant journals is measured by comparing the
width of the calibrated wire (2), at the point of greatest
crushing, with the graduation of the scale on the case
(1) containing the calibrated wire.
The numbers shown on the scale indicate the mating
clearance in millimeters.
Check that the clearance is the one prescribed on
page 8, then lubricate the main bearings and perma-
nently mount the supports, tightening the retaining
bolts as described above.
MIF1075A
107
The crankshaft assembly end float is checked by set-
ting a dial gauge (2) with a magnetic base on the
crankshaft (3) as shown in the figure, the normal as-
sembly clearance must come within the tolerance
prescribed on page 8.
If the clearance is found to be any greater, change the
main half bearings of the penultimate rear thrust bear-
ing support (1) and check the clearance again between
the crankshaft journals and main half bearings.
MIF1076A
108
Fitting the Connecting Rod -- Piston Assembly
(Disassembly operations 58. to 59.)
The following references are cut into the crown of the
piston:
-- Spare part number and design modification num-
ber;
-- Arrow showing the direction of assembly of the
piston in the cylinder liner, it must face the front
of the crankcase (auxiliary member side).
-- Date of manufacture.
-- Stamping indicating testing of the 1
st
groove in-
sert.
MIF0967A
109
Summary of Contents for 90
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