Suzuki 2000 Grand Vitara SQ625 Service Manual page 483

6A4-64 ENGINE MECHANICAL (J20 ENGINE)
No. 1 No. 1
No. 1
Cylinder Cylinder
Cylinder
1. Piston 4. Crankshaft pulley side
2. Cylinder block 5. Flywheel side
3. Paint
Red Red
No. 1 No. 2 No. 3
Cylinder Cylinder Cylinder
ASSEMBLY
1 or 2
NOTE:
Two sizes of piston are available as standard size spare part
so as to ensure proper piston-to-cylinder clearance. When
installing a standard size piston, make sure to match piston
with cylinder as follows.
No. 1
a) Each piston has stamped number 1 or 2 as shown. It represents
Cylinder
b) There are also painted color of red or blue on the cylinder block
c) Stamped number on piston and painted mark on cylinder block
Blue Blue
No. 4
Cylinder
1. Crankshaft pulley side
2. Flywheel side
outer diameter of piston.
as shown. It represent inner diameter of cylinder.
should correspond. That is, install number 2 stamped piston to
cylinder which is identified with mark blue and a number 1 piston
to cylinder with mark red.
Piston
Number
at the top Outer diameter
(mark)
83.98 – 83.99 mm
1
(3.3063 – 3.3066 in.)
83.97 – 83.98 mm
2
(3.3059 – 3.3062 in.)
Also, a letter A, B or C is stamped on piston head but ordinarily
it is not necessary to discriminate each piston by this letter.
Cylinder
Mark Bore diameter
84.01 – 84.02 mm
Red
(3.3075 – 3.3078 in.)
84.00 – 84.01 mm
Blue
(3.3071 – 3.3074 in.)
Piston-to- Piston to
cylinder
clearance
0.02 – 0.04 mm
(0.0008 –
0.0015 in.)
0.02 – 0.04 mm
(0.0008 –
0.0015 in.)