POWR Power unit5-35 69J1D11Checking the valve guidesNOTE:Before checking the valve guide make surethat the valve stem diameter is within specifi-cation.1. Measure the valve guide inside diametera.2. Calculate the valve stem-to-valve guideclearance as follows. Replace the valveguide if out of specification.Replacing the valve guides1. Remove the valve guide 1 by strikingthe special service tool from the combus-tion chamber side.2. Install the new valve guide 2 by strikingthe special service tool from the cam-shaft side until the valve guide installer3 contacts the cylinder head.NOTE:Apply engine oil to the surface of the newvalve guide.3. Insert the special service tool into thevalve guide 2, and then ream the valveguide.Valve stem runout:Intake: 0.01 mm (0.0004 in)Exhaust: 0.01 mm (0.0004 in)Valve guide inside diameter a:5.504–5.522 mm(0.2167–0.2174 in)Valve stem-to-valve guide clearance= valve guide inside diameter – valvestem diameter:Intake:0.025–0.058 mm(0.0010–0.0023 in)Exhaust:0.025–0.058 mm(0.0010–0.0023 in)S69J5770Valve guide remover: YB-06801Valve guide remover: YB-06801Valve guide installer: YB-06810S69J5790S69J5800E
