Suzuki Baleno Manual page 1464

6A1-4 ENGINE MECHANICAL (G13/G16 TYPE ENGINE)
CYLINDER BLOCK
The cylinder block is made of cast aluminum alloy and
has 4 cylinders arranged "In-Line". A cylindrical cast
iron sleeve is installed in each cylinder.
CRANKSHAFT AND MAIN BEAR-
INGS
A monoblock casting crankshaft is supported by 5 main
bearings which are of precision insert type. Four crank
pins on the crankshaft are positioned 1805 apart.
PISTONS, RINGS, PISTON PINS AND
CONNECTING RODS
The piston is cast aluminum alloy, and has two com-
pression rings and one oil ring.
Among two compression rings (top and 2nd rings), the
outer surface of the top ring is treated with nitriding for
improvement in abrasion resistance.
The oil ring consists of two rails and one spacer. The
piston pin is offset 0.5 mm towards the major thrust
side.
1. Rocker arm shaft 5. Rocker arm (IN)
2. Rocker arm (EX) 6. Camshaft
3. Intake valve 7. Clip
4. Exhaust valve 8. Pivot
This allows a gradual change in thrust pressure against
the cylinder wall as the piston travels its path.
Pins, made of chromium steel, have a floating fit in the
pistons and in the connecting rods. The connecting
rods are made of forged steel, and the rod bearings are
of precision insert type.
CYLINDER HEAD AND VALVE TRAIN
The cylinder head is made of aluminum casting. The
supporting part of the camshaft is an independent cap
type. The combustion chamber has 4 valves and uses
the center plug type pent roof shape for higher intake
and exhaust efficiency.
As the intake side rocker arm is end pivot type, it swings
according to the camshaft movement to open and close
the intake valve.
On the other hand, the exhaust side rocker arm is see-
saw type. It swings with the rocker arm shaft as its sup-
porting point and according to the camshaft movement
to open and close the exhaust valve.