Suzuki 2000 Grand Vitara SQ625 Service Manual page 376

6A2-52 ENGINE MECHANICAL (H25 ENGINE)
RH bank
LH bank
1. Gaging plastic
2. Scale
Camshaft Runout
Set camshaft between two "V" blocks, and measure its runout by
using a dial gauge.
If measured runout exceeds below specified limit, replace cam-
shaft.
Runout limit
"a"
Camshaft Journal Wear
Check camshaft journals and camshaft housings for pitting,
scratches, wear or damage.
If any malcondition is found, replace camshaft or cylinder head with
housing. Never replace cylinder head without replacing housings.
Check clearance by using gaging plastic. The procedure is as fol-
lows.
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 cam-
shaft (parallel to camshaft).
4) Install camshaft housing.
5) Tighten camshaft housing bolts in such order as indicated in fig-
ure a little at a time till they are tightened to specified torque.
NOTE:
Do not rotate camshaft while gaging plastic is installed.
6) Remove housing, and using scale on gaging plastic envelop,
measure gaging plastic width at its widest point.
Journal
clearance
0.10 mm (0.0039 in.)
Standard
0.045 – 0.099 mm
(0.0018 – 0.0039 in.)
Limit
0.12 mm
(0.0047 in.)