Valve Springs - Suzuki F6A Service Manual

Valve Springs

S
Referring to the criterion–data given below,
check to be sure that each spring is in sound
condition, free of any evidence of breakage or
weakening. Remember, weakened valve
springs can be the cause of chatter, not to men-
tion the possibility of reducing power output due
to gas leakage caused by decreased seating
pressure.
Item
Valve spring
free length
Valve springs for this engine are single springs of
unequal pitch. The same valve spring is used for both
intake and exhaust valves.
Valve spring squareness limit 2.0 mm (0.079 in.)
68
Standard
37.09 mm
Make sure when installing valve springs that the painted
side (rough wound) faces up.
Camshaft
S
Runout of camshaft:
Hold camshaft between two "V" blocks, and
measure runout by using a dial gauge.
If runout exceeds its limit, replace camshaft.
Runout limit
S
Cam wear:
Using a micrometer, measure height (H) of cam
lobe. If measured height is less than respective
limits, replace camshaft.
Camheight (H)
Intake cam
Exhaust cam
7.2 WINDS
1 31/64"
37.09 mm
0.10 mm (0.0039 in.)
Standard
31.147 mm (1.2459 in.)
29.550 mm (1.1820 in.)