Suzuki 2000 Grand Vitara SQ625 Service Manual page 412

6A2-88 ENGINE MECHANICAL (H25 ENGINE)
1. Crankshaft
2. Crank web
No. 1 Bearing
No. 2
Bearing
No. 3
Bearing
No. 4
Bearing
1. Crankshaft pulley side
2. Stamped alphabets
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. As shown in figure, crank web has
stamped numbers and alphabet at the center.
Three kinds of numbers ("1", "2" and "3") represent following
journal diameters.
Stamped numbers
1
2
3
2) Next, check crankcase (bearing cap) bore diameter without
bearing. On lower surface of lower crankcase 4 alphabets are
stamped as shown in figure.
Three kinds of alphabets (A, B and C) represent following cap
bore diameters.
Stamped alphabet
A
B
C
Journal diameter
64.994 – 65.000 mm
(2.5588 – 2.5590 in.)
64.988 – 64.994 mm
(2.5586 – 2.5588 in.)
64.982 – 64.988 mm
(2.5583 – 2.5586 in.)
Bearing cap bore diameter
(without bearing)
70.000 – 70.006 mm
(2.7559 – 2.7561 in.)
70.006 – 70.012 mm
(2.7561 – 2.7563 in.)
70.012 – 70.018 mm
(2.7563 – 2.7566 in.)