Lower Timing Chain Cover
Lower Timing Chain Cover
Special tools, testers and auxiliary items required
• Hand drill with plastic brush attachment
• Protective eye-wear
Removing
• Transmission removed.
• Engine oil drained.
Risk of injury.
• The lock carrier must be installed and the torque support must be securely attached.
- Remove the drive plate => [ Drive Plate ] Drive Plate.
- Remove the left and right timing chain covers. Refer to => [ Left and Right Timing Chain Covers ] Left and Right Timing Chain Covers.
- Remove the oil filter housing. Refer to => [ Oil Filter Housing ] Oil Filter Housing.
- Remove the bolts - arrows -.
- Remove bolts - 1 and 2 - and - 4 through 9 -.
- Carefully remove the lower cover for the timing chain from the bond.
- Press the transmission side of the crankshaft shaft seal out of the lower timing chain cover.
• Ignore - 3 -.
Installing
• Replace seals, gaskets and O-rings.
• During installation, all cable ties must be installed at the same location.
- Remove the right upper alignment bushing from the cylinder block.
- Grind the alignment bushing down at an angle as shown in the illustration.
• Dimension - x - = 6.5 mm.
• Dimension - y - = 8 mm.
- Insert the alignment bushing in the cylinder block so the angled side faces up.
• Because of the chamfer, the lower timing chain cover can be positioned more easily when the cylinder head is installed.
Risk of eye injury.
• Wear protective eye-wear.
Risk of contaminating lubricating system.
• Cover open parts of engine.
- Remove the sealant residue on the cover for the timing chain, cylinder block and cylinder head, for example using a rotating plastic brush.
- Clean the sealing surfaces; they must be free of oil and grease.
- Clean the old sealant off the holes - arrow - in the cylinder head gasket.
• With cylinder head installed, holes in cylinder head seal are only half visible.
The cylinder head seal could be damaged.
• Only bend ends of cylinder head seals slightly, do not kink.
• A kinked cylinder head seal must be replaced.
- Bend the end of the cylinder head seals down slightly - arrows - until the upper sealing surface of the seals and the cylinder head can be cleaned.
- Clean the upper and lower cylinder head gaskets; they must free from oil and grease.
• Note the expiration date of the sealing compound.
- Cut the tube nozzle at the front marking (nozzle diameter approximately 2 mm).
• The sealant must be applied to several places on the engine, as described in the following.
- Lightly coat the top and bottom cylinder head seal sealing surfaces with lubricant by bending the seals down slightly again - arrows -.
- Use a flat object such as a feeler gauge to coat the surface between the cylinder head and seal.
- Fill the cleaned cylinder head seal holes - arrow - with sealant.
The lubrication system could be plugged with excess sealant.
• Do not apply sealant bead thicker than indicated.
- Apply sealant beads - 1 through 4 - on the clean lower timing chain cover sealing surfaces as shown in the illustration.
• The groove of sealing surface must be completely filled with sealant.
• The sealant beads must be 1.5 to 2.0 mm above the sealing surface.
• The sealant bead - 2 - must be drawn through as shown in the illustration even though the groove is intermittent.
• The timing chain cover must be installed within 5 minutes after applying the sealant
- Insert the sealing rings - arrows - into the grooves on the lower timing chain cover.
- Position the lower timing chain cover, guiding it diagonally from below to the sealing surface on the cylinder block and cylinder head.
- When positioning, ensure the cylinder head seals are not damaged.
- Tighten the bolts for the lower timing chain cover. Refer to => [ Lower Timing Chain Cover, Tightening
Specifications and Sequence ] Timing Chain Covers Overview.
The rest of the installation is performed in reverse order of removal, noting the following:
- Install the oil filter housing. Refer to => [ Oil Filter Housing ] Oil Filter Housing.
- Install the left and right timing chain covers. Refer to => [ Left and Right Timing Chain Covers ] Left and Right Timing Chain Covers.
- Install the transmission-side crankshaft shaft seal. Refer to => [ Crankshaft Seal, Transmission Side ] Service and Repair.
- Installing drive plate. Refer to => [ Drive Plate ] Drive Plate.
- Fill engine oil and check oil level.