Replacing the front crankshaft oil seal (Mazda CX-5KE)

Note:

: replace the part with a new one after each removal.

: use a special tool or device.

: apply oil.

Warning: A hot engine can cause burns. Before starting work, turn off the engine and wait until it cools down.

1. Remove the front engine oil pan No.2.

2. Remove the mudguard.

3. Remove the accessory drive belt.

Note: To remove the crankshaft pulley bolt, you will need at least one more assistant.

4. Using bolts (M12x1.75, strength class 8.8 or higher, 48-50 mm long - the length can be adjusted by adding washers), install a special tool on the crankshaft pulley. Tightening torque: 15 Nm.

Attention.

• To prevent damage to the crankshaft pulley and engine front cover, be sure to use the specified size bolts when installing the special tool on the crankshaft pulley and tighten them to the specified tightening torque.
• After installing the special tool, make sure that the bolts do not touch the front engine cover.

Note: If bolts of 50 mm or more are used, additional washers must be added to adjust the working length of the bolt to 48-50 mm. Thus, to use the M12x1.75 bolts of 60 mm length, which are supplied with the special tool 49 S011 102A, a 10 mm thick washer must be added.

5. One person needs to connect an extension tube of suitable length (100 mm or more) to a special tool and hold the crankshaft pulley from turning.





6. The second person must unscrew and remove the crankshaft pulley mounting bolt.



7. Remove the pulley from the crankshaft using a special tool.

8. Cut off the edges of the seal using a regular knife.

9. Remove the oil seal using a flat-head screwdriver wrapped in a clean cloth to avoid damaging the crankshaft surface.



10. Apply clean engine oil to the inside surfaces of the new front crankshaft oil seal.



11. Manually insert the front crankshaft oil seal into the engine front cover.

12. Press the seal evenly using a suitable mandrel and hammer.

Note: Front crankshaft oil seal pressing depth: 0-0.5 mm.

13. Install the pulley with a special tool on the crankshaft.

Note: Tightening the crankshaft pulley bolt must be done in two stages. For the second stage of tightening, (tightening to a certain angle) assistant needed.

14. Connect an extension tube of suitable length (100 mm or more) to a special tool and hold the crankshaft pulley from turning.



15. Tighten the crankshaft pulley bolt to a torque of 100-120 Nm.





16. Use a marker to mark the bolt and crankshaft pulley as shown in the figure to tighten the bolt to the required angle.



17. While one person holds the special tool to prevent the crankshaft from turning, the other should tighten the pulley bolt to an angle of 55-65°.


18. Remove the special tool from the crankshaft pulley.

19. Further installation is carried out in the reverse order of removal.