Cam Chain Tension Adjuster - Suzuki AN400 Service Manual

3-36 ENGINE
• If the clearance exceeds the service limit, measure the inside
diameter of camshaft journal holder using a small bore gauge.
' Camshaft journal holder I.D.:
Standard: (*22) 22.012 – 22.025 mm (0.8666 – 0.8671 in)
(*17.5) 17.512 – 17.525 mm (0.6894 – 0.6900 in)
% 09900-22403: Small bore gauge (18 – 35 mm)
• Measure the outside diameter of camshaft journal using a
micrometer.
• Calculate from the measurement to determine if the clearance
falls within the standard range when the camshaft is replaced
with new one. If the clearance does not come to the standard
range, replace both the camshaft and cylinder head with new
ones.
' Camshaft jouranal O.D.:
Standard: (*22) 21.959 – 21.980 mm (0.8645 – 0.8653 in)
(*17.5) 17.466 – 17.484 mm (0.6876 – 0.6883 in)
% 09900-20205: Micrometer (0 – 25 mm)
CAMSHAFT RUNOUT
• Inspect the camshaft surface for scrach.
• With the camshaft held on the V-blocks, measure the runout
with a dial gauge. If the runout exceeds the service limit,
replace the camshaft.
' Camshaft runout: Service Limit: 0.10 mm (0.004 in)
% 09900-20607: Dial gauge (1/100 mm)
09900-20701: Magnetic stand
09900-21304: V-block set (100 mm)

CAM CHAIN TENSION ADJUSTER

CAM CHAIN TENSION ADJUSTER INSPECTION
• Check that the push rod 1 can slide smoothly with the lock 2
of the ratchet mechanism released. If it does not slide
smoothly or the ratchet mechanism is worn or damaged,
replace the camchain tension adjuster with a new one.