Suzuki 2000 Grand Vitara SQ625 Service Manual page 303

Crankshaft
pulley side
Circlip
1. Piston
2. Arrow mark
3. Connecting rod
4. Oil hole
or
The oil hole should
come on intake side
"RN"
"R"
1. Arrow mark
2. 1st ring end
3. 2nd ring end
4. Oil ring upper
5. Oil ring lower
6. Intake side
7. Exhaust side
c) Stamped number on piston and that on cylinder block should
correspond. That is, install number 2 stamped piston to cylinder
which is identified with number 2 and a number 1 piston to cylin-
der with number 1.
Number
at the top
(mark)
1
2
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.
1) Install piston pin to piston and connecting rod:
After applying engine oil to piston pin and piston pin holes in pis-
ton and connecting rod, fit connecting rod to piston as shown in
figure and insert piston pin to piston and connecting rod, and
install piston pin circlips.
NOTE:
Circlip should be installed with its cut part facing either up
or down as shown in figure.
2) Install piston rings to piston:
D As indicated in figure at the left, 1st and 2nd rings have "RN",
"T" or "R" mark respectively. When installing these piston rings
to piston, direct marked side of each ring toward top of piston.
D 1st ring differs from 2nd ring in thickness, shape and color of
surface contacting cylinder wall.
Distinguish 1st ring from 2nd ring by referring to figure.
D When installing oil ring, install spacer first and then two rails.
1. 1st ring
2. 2nd ring
3. Oil ring
3) After installing three rings (1st, 2nd and oil rings), distribute their
end gaps as shown in figure.
gap
gap and oil ring
spacer gap
rail gap
rail gap
ENGINE MECHANICAL (G16 ENGINE) 6A1-61
Piston
Number
Outer diameter
(mark)
74.98 – 74.99 mm
1
(2.9520 – 2.9524 in.)
74.97 – 74.98 mm
2
(2.9516 – 2.9520 in.)
Cylinder
Piston-to-cylinder
clearance
Bore diameter
0.02 – 0.04 mm
75.01 – 75.02 mm
(0.0008 –
(2.9531 – 2.9535 in.)
0.0015 in.)
0.02 – 0.04 mm
75.00 – 75.01 mm
(0.0008 –
(2.9528 – 2.9531 in.)
0.0015 in.)