Suzuki Engine 2002 GRAND VITARA SQ625, Service Manual

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ENGINE MECHANICAL (J20 ENGINE) 6A4-89
Selection of main bearings
STANDARD BEARING :
1) First check journal diameter. As shown in figure, crank web
No.2 (3) has stamped numbers.
Three kinds of numbers (“1”, “2” and “3”) represent following
journal diameters.
Crankshaft journal specification
Stamped numbers on crank web No.2 represent journal diame-
ters marked with an arrow in figure respectively.
For example, stamped number “1” indicates that corresponding
journal diameter is 58.000 – 58.0060 mm (2.2835 – 2.2836 in.).
NOTE:
• If bearing is in malcondition, or bearing clearance is
out of specification, select a new standard bearing
according to following procedure and install it.
• When replacing crankshaft or cylinder block and lower
crankcase due to any reason, select new standard
bearings to be installed by referring to number
stamped on new crankshaft and/or alphabets stamped
on new lower crankcase.
Stamped numbers Journal diameter
1
58.000 – 58.0060 mm
(2.2835 – 2.2836 in.)
2
57.9940 – 57.9999 mm
(2.2833 – 2.2834 in.)
3
57.9880 – 57.9939 mm
(2.2830 – 2.2832 in.)
1. Crankshaft pulley side
2. Flywheel side