MARUTI SUZUKI Wagon R, Manual

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1D-2 Engine Mechanical:
4) Using wrench, turn crankshaft pulley (1) clockwise
until cam lobes (2) become perpendicular to tappet
faces (3) at valves “1” and “6” as shown in figure.
5) Measure valve clearance with feeler gauge (4)
according the following procedures.
a) Measure valve lashes at valves “1” and “6”.
b) Turn camshafts by 120° (by turning crankshaft
with wrench).
c) Make sure that cam lobes are perpendicular to
tappet faces at valves to be measured (in this
case, “3” and “5”), if not, adjust it by turning
crankshaft.
Measure valve clearance.
d) In the same manner as b) – c), measure valve
lashes at valves “2” and “4”.
If valve clearance is out of specification, record valve
clearance and adjust it to specification.
)
Valve clearance specification
Intake: 0.14 – 0.23 mm (0.0063 – 0.0094 in.) (When
cold (ECT: 15 – 25 °C (59 – 77 °F)))
Exhaust: 0.30 – 0.40 mm (0.0123 – 0.0153 in.) (When
cold (ECT: 15 – 25 °C (59 – 77 °F)))
Adjustment
1) Remove tappet to be replaced. )
2) Select proper size of tappet as follows.
a) Using a micrometer, measure the thickness of
the removed tappet (1).
b) Calculate the thickness of new tappet by formula
below.
NOTE
If the number at second places of decimal
point A is odd number, use (A – 0.01) tappet.
Intake side:
A = B + C – 0.19 mm (0.0075 in.)
Exhaust side:
A = B + C – 0.35 mm (0.0138 in.)
A: Thickness “a” of new tappet
B: Thickness “a” of removed tappet
C: Measured valve clearance
c) Select new tappet closest to calculated value
from available size as a spare part.
3) Install tappets and camshafts. )
4) Recheck valve clearance.
“a”: 90°
1
2
3
4
“a”
I8C50A140005-01
“1”
“2” “3”
“4” “5” “6”
I8C50A140006-01
1
1
"a"
I7V20A141015-01