Suzuki F6A Service Manual page 71

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Journal wear:
Check camshaft journals and camshaft hous-
ings for pitting, scratches, wear or damage.
If any malcondition is found,replace camshaft or
cylinder head with housing. Never replace cylin-
der head without replacing housings.
Check clearance by using gaging plastic. The
procedure is as follows.
1) Clean housings and camshaft journals.
2) Make sure that all valve lash adjusters are
removed and install camshaft to cylinder head.
3) Place a piece of gaging plastic the full width
of journal of camshaft (parallel to camshaft).
4) Install housings and evenly torque housing
bolts to specified torque. Housings MUST be
torqued to specification in order to assure proper
reading of camshaft journal clearance.
NOTE:
Do not rotate camshaft while gaging plastic is
installed.
Tightening torque for journal
bolts
5) Remove housing, and using scale on gaging plastic
envelope, measure gaging plastic width at its widest
point.
Cylinder Block
9 – 12 N–m
(0.9 – 1.2 kg–m)
(7.0 – 8.5 lb–ft)
Standard
Journal 0.045 – 0.087 mm
clearance (0.0018 – 0.0034 in.)
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Distortion of gasketed surface:
Using a straightedge and a thickness gauge,
check gasketed surface for distortion and, if
result exceeds specified limit, correct it.
Limit of distortion
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Cylinder bore:
Using a cylinder gauge, measure cylinder bore
in thrust and axial directions at two positions.
If any of the following conditions is noted, rebore
cylinder.
1) Cylinder bore diameter exceeds limit.
2) Difference of measurements at two positions
exceeds taper limit.
3) Difference between thrust and axial measure-
ments exceeds out–of–round limit.
Limit
0.12 mm
(0.0047 in.)
0.05 mm (0.0020 in.)
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