Crankshaft oil seals (Mitsubishi Space Star)

Fig. 2.31. Crankshaft oil seals: 1 - crankshaft pulley; 2-segment key; 3 - crankshaft position sensor impeller; 4—crankshaft spacer sleeve; 5-front crankshaft oil seal; 6 - plate; 7 - connecting plate; 8 - flywheel; 9 - slow plate; 10 - rear crankshaft oil seal

Removal

Front crankshaft oil seal

• Remove the timing belt of the gas distribution mechanism drive
• Remove the bolt and crankshaft position sensor.
• Remove the crankshaft pulley and woodruff key.
• Remove the crankshaft position sensor impeller and spacer sleeve.
• Drill two small holes in the front crankshaft oil seal, located at diametrically opposite ends of the oil seal. Screw two self-tapping screws into the drilled holes in the oil seal and, using pliers, pull the oil seal out by the screw heads.
• Clean the oil seal seat.

Rear crankshaft oil seal

• Remove the gearbox
• Unscrew the bolts and remove the clutch housing with the pressure plate and the driven clutch disc.
• Using a special tool, block the flywheel from turning and unscrew the bolts holding it in place (Fig. 2.32)
• Remove the flywheel and connecting plates.
• Using a knife or a flat-head screwdriver, make a groove near the working edge of the seal.

Fig. 2.32. Using a special tool to lock the flywheel from turning

Warning: Be careful not to damage the crankshaft and cylinder block.

• Insert a flat-head screwdriver blade wrapped in cloth into the punctured gas and use the screwdriver as a lever to remove the seal.

Installation

Rear crankshaft oil seal

• Before installation, clean the bolts, threaded holes in the crankshaft and flywheel from oil, sealant and other contaminants.
• Lubricate the working edge of the new seal with a thin layer of engine oil.
• Using a special tool, install the rear crankshaft oil seal as shown in Figure 2.33
• Clean the threaded holes in the crankshaft.
• Apply a layer of blocking agent to the threaded holes in the crankshaft and to the threads of the flywheel mounting bolts.

Fig. 2.33. Using a special tool to install the rear crankshaft oil seal

Locking agent: ЗМ Stud Locking 4170 or equivalent

• Install the flywheel and connecting plates.
• Using a special tool, block the flywheel from turning and screw in its mounting bolts (Fig. 2 32).

Tightening torque: 93-103 Nm

• Install the driven clutch disc, the clutch housing with the pressure plate and screw in the bolts for its fastening.
• Install the gearbox.

Front crankshaft oil seal

• Lubricate the working edge of the new seal with a thin layer of engine oil.
• Using a special tool, install the front crankshaft oil seal as shown in Figure 2.34.

Fig. 2.34. Using a special tool to install the front crankshaft oil seal

• Install the spacer sleeve and crankshaft position sensor impeller.
• Install the segment rod and crankshaft pulley.
• Install the crankshaft position sensor.
• Install the timing belt to drive the gas distribution mechanism.
• Connect the cable to the negative terminal of the battery.