Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual page 326

Cam Wear
Using a micrometer, measured height of cam. If measured height
is below limit, replace camshaft.
Cam height
Intake cam
Exhaust cam
Camshaft Runout
Hold camshaft between two "V" blocks, and measure runout by
using a dial gauge.
If runout exceeds the limit, replace camshaft.
Camshaft runout limit
0.10 mm (0.0039 in.)
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 hous-
ing.
ENGINE MECHANICAL (G16 ENGINE) 6A1-35
Standard
36.184 – 36.344 mm
(1.4246 – 1.4308 in.)
35.900 – 36.060 mm
(1.4134 – 1.4196 in.)
Limit
36.084 mm
(1.4206 in.)
35.800 mm
(1.4094 in.)