Lower Timing Chain Cover
Lower Timing Chain Cover
Special tools, testers and auxiliary items required
• Stud extractor, commercially available
• Hand drill with plastic brush attachment
• Protective eyewear
• Sealant
Removing
• The transmission is removed.
- Remove the flywheel. Refer to => [ Flywheel ] Flywheel.
- Remove the power steering pump.
- Remove the drive-through shaft.
- Remove the upper section of the intake manifold.
- Drain engine oil.
- Remove the oil filter housing. Refer to => [ Oil Filter Housing ] Oil Filter Housing.
- Remove the timing chain covers. Refer to => [ Left Timing Chain Cover ] Left Timing Chain Cover and => [ Right Timing Chain Cover ] Right Timing Chain Cover.
- Remove the studs - arrows - with a commercially available stud extractor.
- Remove bolts - arrows -.
- Remove the bolts - 1 through 11 - and remove the timing chain lower cover from the bond.
- Press the transmission side of the crankshaft shaft seal out of the lower timing chain cover.
Installing
- 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.
CAUTION!
Risk of contaminating lubricating system.
• Cover open parts of engine.
CAUTION!
Risk of eye injury.
• Wear safety glasses.
- Remove any sealant residue on the timing chain cover, 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.
CAUTION!
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).
- Lightly coat 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.
CAUTION!
The lubrication system could be plugged with excess sealant.
• Do not apply sealant beads thicker than indicated.
It will not seal if the sealant bead in applied unevenly.
• There is a break in the bead of sealant at the places marked with an - arrow -.
• Never apply the bead of seal all the way through in these places.
- Apply sealant beads - 1 through 10 - on the clean lower timing chain cover sealing surfaces as shown in the illustration.
• Sealant bead thickness: 2.5 mm
• The timing chain cover must be installed within 5 minutes after applying the sealant
- 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 => [ Lower Timing Chain Cover, Tightening
Specifications and Sequence ] Timing Chain Covers Assembly Overview.
The rest of the installation is in reverse order of removal, note the following:
- Install the transmission-side crankshaft shaft seal. Refer to => [ Crankshaft Seal, Transmission Side ] Service and Repair.
- Install the timing chain covers. Refer to => [ Left Timing Chain Cover ] Left Timing Chain Cover, or => [ Right Timing Chain Cover ] Right Timing Chain Cover for the right.
- Install the studs with a commercially available stud extractor until dimension - a - is reached.
• Dimension - a - = 35 ± 1 mm.
- Install the oil filter housing. Refer to => [ Oil Filter Housing ] Oil Filter Housing.
- Install the upper section of the intake manifold.
- Install the drive-through shaft.
- Install the power steering pump.
- Remove the flywheel. Refer to => [ Flywheel ] Flywheel.
- Fill the engine oil and check the level.