Suzuki 2000 Grand Vitara SQ416, Руководство по обслуживанию

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YH4
GRAND
VITARA
1. Gaging plastic
2. Scale
1. Crank webs of No.2 and No.3 cylinders
ENGINE MECHANICAL (G16 ENGINE) 6A1-73
5) Remove cap and using scale on gaging plastic envelope, mea-
sure gaging plastic width at its widest point. If clearance exceeds
its limit, replace bearing. Always replace both upper and lower
inserts as a unit.
A new standard bearing may produce proper clearance. If not,
it will be necessary to regrind crankshaft journal for use of 0.25
mm undersize bearing.
After selecting new bearing, recheck clearance.
Standard Limit
Bearing clearance
0.016 – 0.036 mm
(0.0006 – 0.0014 in.)
0.060 mm
(0.0023 in.)
Selection of main bearings
STANDARD BEARING:
If bearing is in malcondition, or bearing clearance is out of specifica-
tion, select a new standard bearing according to following proce-
dure and install it.
1) First check journal diameter by using following procedure.
As shown in figure, crank webs of No.2 and No.3 cylinders have
five stamped numerals.
Three kinds of numerals (“1”, “2” and “3”) represent following
journal diameters.
Numeral stamped Journal diameter
1
51.994 – 52.000 mm
(2.0470 – 2.0472 in.)
2
51.988 – 51.994 mm
(2.0468 – 2.0470 in.)
3
51.982 – 51.988 mm
(2.0465 – 2.0468 in.)
The first, second, third, fourth and fifth (left to right) stamped nu-
merals represent journal diameters at bearing caps “1”, “2”, “3”,
“4” and “5” respectively.
For example, in figure, the first (leftmost) numeral “3” indicates
that journal dia. at bearing cap “1” is within 51.982 – 51.988 mm,
and second one “1” indicate that journal dia. at cap “2” is within
51.994 – 52.000 mm.