Valve Springs - Suzuki Swift User Manual

ENGINE MECHANICAL (G13B, 1-CAM 16-VALVES ENGINE) 6A1-49

Valve Springs

D Referring to data given below, check to be sure that each spring
is in sound condition, free of any evidence of breakage or weak-
ening. Remember, weakened valve springs can cause chatter,
not to mention possibility of reducing power output due to gas
leakage caused by decreased seating pressure.
Item
Valve spring
free length
10.7 – 12.5 kg for
Valve spring
31.5 mm (23.6 –
preload
27.5 lb/1.24 in.)
D Spring squareness:
Use a square and surface plate to check each spring for square-
ness in terms of clearance between end of valve spring and
square. Valve springs found to exhibit a larger clearance than limit
given below must be replaced.
Valve spring squareness limit: 1.6 mm (0.063 in.)
Standard
36.83 mm
(1.4500 in.)
9.3 kg for 31.5 mm
(20.5 lb/1.24 in.)
Limit
35.67 mm
(1.4043 in.)