INSPECTION

1.Hardening of rubber backing. Back side should be glossy without resilience and leave no indent when pressed with fingernail.

2.Cracks on rubber back. 3.Cracks or peeling of canvas. 4.Cracks at bottom of ribs. 5.Cracks on belt sides.

6.Abnormal wear of belt sides. Normal wear is indicated if the sides are sharp as if cut by a knife. Abnormal wear is indicated if the sides are ragged.

7.Abnormal wear on teeth. Initial stage: Canvas worn (fluffy canvas fibers, rubbery texture gone, white discoloration, canvas texture indistinct) Final stage: Canvas worn, exposing rubber (tooth width reduced) 8.Missing tooth.

1.Check for oil leaks. If oil leaks are evident, replace the auto-tensioner. 2.Check the rod end for wear or damage and replace the auto-tensioner if necessary. 3.Measure the rod protrusion. If it is out of specification, replace the auto tensioner. Standard value: 12 mm

4.Press the rod with a force of 98 to 196 N and measure the movement of the rod. If the measured value is out of the standard value, replace the auto-tensioner. Standard value: 1.0 mm or less

2. caution Rotate the crankshaft clockwise at any time. Rotate crankshaft clockwise and then align the timing mark on the camshaft sprocket with the timing mark on the cylinder head. (Place No. 1 cylinder on the top dead center of compression stroke.)

3.Measure the valve clearance marked with arrows shown in the figure. White arrow mark: When No.1 cylinder is on the top dead center of compression stroke. Black arrow mark: When No.4 cylinder is on the top dead center of compression stroke.

4.Using a thickness gauge, adjust the clearance between the valve shaft end and the adjusting screw. Standard value (in cold state): Intake side: 0.11 mm Exhaust side: 0.20 mm note After the engine assembly is installed on the vehicle, check the valve clearance again in the engine warm-up state. Adjust if necessary. 5.Hold the adjusting screw not rotating through a driver and then tighten the rock nut. 6.Rotate the crankshaft one time clockwise and then align the timing mark with the timing mark on the crankshaft sprocket. (Place No. 4 cylinder on the top dead center of compression stroke.) 7.Adjust the valve clearance for the rest of the valves. 8.Install the rocker cover.