Suzuki GS500E (1989-1997) [54/221] Clutch and transmission 2 19

Suzuki GS500E (1989-1997) [54/221] Clutch and transmission 2 19
13.15 Measure the valve face thickness .. Ihown
aeat. Mount a dial gauge against the side of
the valve face and measure the amount of
side clearance (wobble) between the valve
stem and its guide In two perpendicular
directions. If the clearance exceeds the limit
specified, ~ the valve and measure the
valve stem diameter (... IIIU8tr8tion). Also
measure the inside diamet~ of the guides (at
both ends and the centre of the guide) with a
small hole gauge and micrometer (see
iI~. The guides are meesured at the
ends end at the cenn to determk'8 If they are
wom In a bell-mouth pattem (more wear at the
ends). If the valve .tem or guide is worn
beyond its limit, it must be replaced.
15 Carefully Inspect each valve face for
cractcs, pits and burned spots. Measure the
valve fHe thickness and compare it to this
Chapter's SpecifIcations (... IIlustraUon). If it
exceeds the ~ limit, or If it varies around
Its circumference. valve overhaul is required.
18 Check the valve stern and the collet
groove area for cracks (... lUu8tr8tion).
Rotate the valve and check for any obvious
indication that it Is bent. Check the end of the
stern for pitting and excessive wear. The
presence of any of the above conditions
indicat.. the need for valve .-vicing.
Engine, clutch and transmission 2-19
13.14b Insert a small hole gauge Into the
valve guide and expand It 80 there's a
slight ~ when It's pulled out
.. - shown 13.18 Check the V8fve face (A), stem (8) end collet groove (C)
for signs of wear and damage
17 Using V-bIocIca and a dial gauge, measure Illustration). If the bend in any spring is
the valve stem runout and the valve head excessive, it must be replaced.
runoot and compare the results to the 18 Check the 8PfW1g retak*S and coIleta for
specifications. If either ~ exceeds obvious wear and cracks. Any questionable
the 8eIVIce limit, the valve must be replaced. parts should not be reused, as extensive
18 Check the end of each valve spring for damage will occur In the event of failure
wear and pitting. Measure the spring free dINing engine operation.
length and compare It to that listed In the 20 If the inspection indicates that no overhaul
specifications (.. ~~ ). If any aping wort< is required, the valve components can
is shorter than specified It has sagged and be reinstalled in the heed.
must be replaced. Also place the spring Rea88e u~ on a flat Mace end check It for bend m_,
by placing a ruler or set-square against It (Me 21 Before installing the valves in the head.

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