Suzuki 2000 Grand Vitara SQ625 Service Manual page 458

Don't apply force
1. Engine oil
2. Valve lash adjuster
9) After removing 2nd timing chain, set key on crankshaft in posi-
tion as shown by turning crankshaft. This is to prevent interfer-
ence between valves and piston.
10) Loosen camshaft housing bolts in such order as indicated in
figure and remove them.
11) Remove camshaft housings.
12) Remove camshafts.
13) Remove valve lash adjusters.
NOTE:
_ Never disassemble hydraulic valve lash adjuster.
_ Don't apply force to body of adjuster, oil in high pressure
chamber in adjuster will leak.
_ Immerse removed adjuster in clean engine oil and keep it
there till reinstalling it so as to prevent oil leakage. If it is
left in air, place it with its bucket body facing down. Don't
place on its side or with bucket body facing up.
INSPECTION
Cam Wear
Using a micrometer, measure cam height. If measured height is be-
low its limit, replace camshaft.
Cam height
Intake cam
Exhaust cam
ENGINE MECHANICAL (J20 ENGINE) 6A4-39
Standard
40.402 – 40.562 mm
(1.5906 – 1.5969 in.)
39.921 – 40.081 mm
(1.5717 – 1.5780 in.)
Limit
40.202 mm
(1.5827 in.)
39.721 mm
(1.5638 in.)