KRYOTEC ENGINE 34 5. REPAIR AND INSPECTION DETAILS A. TIMING BELT Inspect the belt for excessive wear or damage. Replace the belt if any of the following are noticed. Hardening - belt will be glossy and hard. Pressing on the belt with a fingernail will not make an impression. Cracks in rubber. Canvas showing Broken, cracked, or missing belt tooth Excessive wear on side of belt. The side of the belt should appear to have been cut with a knife. In the early stages of belt wear, the load side of the belt teeth will look like fluffy canvas with some of the rubber missing. In the later stage of wear, the canvas will be gone from the belt teeth and showing exposed rubber. NOTE Inspect the condition of the water pump, belt tensioner, and timing belt idler pulley when replacing the timing belt. TIMING ANGLES Operation control clearance (mm) Intake ( • ) Exhaust ( • ) Control timing clearance (mm) Intake - Exhaust - Intake Opening (BTDC) 10° Opening (ATDC) - Closed (after BDC) 2° Exhaust Opening (before BDC) 40° Opening (BTDC) - Closed (ATDC) 9° ( • ) Hydraulic Tappets
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