Engine Front Cover Installation Note

NOTE:

For a new engine front cover, the positioning pins in the two locations shown in the figure project to the outside of the engine.

Fig 1: Locating Positioning Pins In Engine Front Cover

If the engine front cover is newly replaced, tap the positioning pins in the two locations to the seal surface side.
Remove oil, dirt, and sealant adhering to the engine front cover, cylinder head, and cylinder block.
When reusing an engine front cover installation bolts, remove sealant adhering to the bolts.
CAUTION:
- Apply the silicon sealant in a single, unbroken line.
- To prevent silicone sealant from hardening, adhere the engine front cover and the cylinder block firmly within 10 min. after applying silicone sealant. After adhering them, tighten the installation bolts immediately.
  
  Fig 2: Tapping Positioning Pins
- If a bolt with sealant adhering to it is used, it could result in cracks in the cylinder head and cylinder block.
Fig 3: Caution For Using Bolt With Sealant Adhering
Apply silicone sealant to the engine front cover as shown in the figure.

Fig 4: Identifying Silicone Sealant Application Areas On Engine Front Cover

Bead thickness
1. 2-6 mm {0.1-0.2 in}
2. 4-6 mm {0.16-0.23 in}
3. 4-8 mm {0.2-0.3 in}
Apply silicone sealant to the areas shown in the figure.
CAUTION:
- Apply the silicone sealant so that it goes into the cylinder head gasket.
Install the engine front cover to the engine.
NOTE:
- Temporarily install an appropriate bolt to the drive belt auto tensioner installation bolt hole to prevent:
  - A silicone sealant adhesion malfunction in the drive belt auto tensioner installation bolt hole.
  - A bolt mis-installation due to silicone sealant hardening.
Fig 5: Locating Silicone Sealant Application Areas On Cylinder Head Gasket
Prepare an appropriate M8 X 1.25 bolt (length 40 mm {1.6 in} ).

Fig 6: Identifying Drive Belt Auto Tensioner Installation Bolt Hole
Tighten the engine front cover installation bolts in the order shown in the figure.
Tightening torque 20-26 N.m {2.1-2.6 kgf.cm, 15-19 in.lbf}
Remove the bolt installed to the drive belt auto tensioner installation bolt hole when installing the drive belt auto tensioner.

Fig 7: Identifying Engine Front Cover Installation Bolts Tightening Sequence
Install the ground cable and wiring harness bracket shown in the figure.

Fig 8: Ground Cable, Wiring Harness Bracket And Mounting Bolts With Torque Specification