3-30 ENGINE • If the camshaft journal oil clearance measured exceeds the limit, measure the inside diameter of the camshaft journal holder and outside diameter of the camshaft journal. • Replace the camshaft or the cylinder head depending upon which one exceeds the specification. Camshaft journal holder I.D.: Standard: (IN. & EX.): 24.012 – 24.025 mm (0.9454 – 0.9459 in) 09900-20602: Dial gauge (1/1000, 1 mm) 09900-22403: Small bore gauge (18 – 35 mm) Camshaft journal O.D.: Standard (IN. & EX.): 23.959 – 23.980 mm (0.9433 – 0.9441 in) 09900-20205: Micrometer (0 – 25 mm) CAMSHAFT RUNOUT E • Measure the runout using the dial gauge. • Replace the camshaft if the runout exceeds the limit. L Camshaft runout: P Service Limit (IN. & EX.): 0.10 mm (0.004 in) 09900-20607: Dial gauge (1/100 mm) M 09900-20701: Magnetic stand A 09900-21304: V-block set (100 mm) CAM SPROCKET S • Inspect the sprocket teeth for wear. • If they are worn, replace the sprocket/camshaft assembly and cam chain as a set. CAM CHAIN TENSION ADJUSTER INSPECTION • Remove the cam chain tension adjuster cap bolt and spring. • Check that the push rod slides smoothly when releasing stop- per 1. • If it does not slide smoothly, replace the cam chain tension adjuster with a new one.