6D81G11 5-38123456789Removing the exhaust cover1. Remove the exhaust cover bolts in thesequence shown.2. Remove the exhaust cover.Checking the pressure control valve1. Remove the pressure control valve.2. Check the pressure control valve forwear or damage. Replace if necessary.3. Check the grommet for deformation.Replace if necessary.4. Check the spring for fatigue or deforma-tion. Replace if necessary.Installing the pressure control valve1. Install a new gasket and the pressurecontrol valve, and then tighten the bolts.Installing the exhaust cover1. Install a new gasket and the exhaustcover.2. Install the bolts, and then tighten them tothe specified torques in two stages and inthe sequence shown.NOTE:Apply engine oil to the exhaust cover boltsbefore installation.S6D85530S6D85540T R. .Exhaust cover bolt:1st: 6 N·m (0.6 kgf·m, 4.4 ft·lb)2nd: 12 N·m (1.2 kgf·m, 8.9 ft·lb)S6D85550EExhaust cover