Camshaft Replacement Front

Tools Required

1. Disconnect the negative battery cable.
2. Remove the intake plenum. Intake Plenum Replacement
3. Remove the air cleaner assembly.



4. Remove the front camshaft cover. Camshaft Cover Replacement



5. Remove the front timing belt cover. Timing Belt Front Cover Replacement
6. Remove the timing belt. Timing Belt Replacement




Important: As a precaution, rotate the crankshaft counterclockwise to 60 degrees BTDC position to prevent valve/piston contact.

7. Insert the J42069-2 Camshaft Gear Locking Tool into the camshaft gears to hold them in place while loosening the camshaft gear bolt.



8. Remove the J42069-2.
9. Remove the camshaft gear bolt and discard.
10. Remove the camshaft gear.



11. Loosen the camshaft bearing cap bolts, sequentially, starting from the center and moving outwards in a spiral direction.

Important: Ensure that the camshaft is not under load from the lifters and that the camshaft comes out of the bearing seat evenly.

12. Remove the camshaft bearing cap bolts.
13. Remove the camshaft bearing caps. Note the marks on the bearing caps.
14. The bearing caps for the front side cylinder head are marked with an "R" followed by a number.
15. Remove the camshaft with a seal attached.
16. Remove the camshaft seal.
17. Clean all of the bearing surfaces.
18. Clean all of the sealing surfaces.

1. Lubricate the camshaft bearing surfaces with clean engine oil.
2. Install the camshaft to the cylinder head.




Important: Ensure the pin on the exhaust camshaft is approximately in the 12 o'clock position and/or that the pin on the intake camshaft is approximately in the 7 o'clock position to allow for minimal load on the camshaft when installing the bearing caps.

3. Apply a small amount of LOCTITE® 518, or equivalent, on the forward edge of the front bearing caps to ensure an adequate seal between the bearing cap and the cylinder head.



4. The bearing caps for the front (CYL 2, 4, 6) cylinder head are marked R1-R8 (cylinders 2, 4, 6).
5. Install the camshaft bearing caps in their appropriate position.




Important: Do not allow the sealer to get into the oil journal of the cap.

Important: Tighten the camshaft bearing cap bolts starting from the center cap gradually.

6. Install the camshaft bearing cap bolts.

Tighten
Tighten the camshaft bearing cap bolt to 8 N·m (71 lb in).




7. Coat the lip of the seal with a small amount of clean engine oil to aid in installation.
8. Use the J 35268-A to install the camshaft seal.
9. Ensure that the camshaft seal is fully and evenly seated.




Important: Use a new camshaft gear bolt. The required tightening method will stretch the bolt to its yield point. Therefore, the bolt is not reusable.

10. Install the new camshaft gear bolt using the SA9140E .
11. Use the J42069-2 to hold the camshaft gear and the camshaft in place while tightening the camshaft gear bolt.

Tighten
Tighten the camshaft gear bolt to 50 N·m (37 lb ft) + 60° + 15°.

12. Install the timing belt. Timing Belt Replacement
13. Adjust the timing belt. Timing Belt Replacement
14. Install the timing belt cover. Timing Belt Front Cover Replacement
15. Install the front camshaft cover. Camshaft Cover Replacement
16. Install the intake plenum. Intake Plenum Replacement
17. Install the air cleaner assembly.
18. Connect the negative battery cable.

Tighten
Tighten the battery terminal bolts to 17 N·m (13 lb ft).

Camshaft Replacement Rear

Tools Required

1. Disconnect the negative battery cable.
2. Remove the intake plenum. Intake Plenum Replacement
3. Remove the air cleaner assembly.



4. Remove the rear camshaft cover. Camshaft Cover Replacement
5. Remove the timing belt cover. Timing Belt Rear Cover Replacement
6. Remove the timing belt. Timing Belt Replacement

Important: As a precaution, rotate the crankshaft counterclockwise to 60 degrees BTDC position to prevent valve/piston contact.

7. Insert the J42069-2 Camshaft Locking Tool into the camshaft gears to hold the gear in place while loosening the camshaft gear bolt.



8. Remove the J42069-2.
9. Remove the camshaft gear bolt.
10. Remove the camshaft gear.




Important: The intake camshaft is marked with the letter "A" and the exhaust camshaft is marked with the letter "E".

Important: Ensure that the camshaft is not under load from the lifters and that the camshaft comes out of the bearing seats evenly.

11. Loosen the camshaft bearing cap bolts sequentially, starting from the center and moving outwards in a spiral direction in stages of 1/2-1 turn.
12. Remove the camshaft bearing cap bolts.
13. Remove the camshaft bearing caps. Note the code marks on the bearing caps.

Important: The bearing caps for the rear side (CYL 1, 3, 5) cylinder head are marked with an "L" followed by a number.

14. Remove the camshaft with the seal attached.
15. Remove the camshaft seal.
16. Clean all of the bearing surfaces.
17. Clean all of the sealing surfaces.

1. Lubricate the camshaft bearing surfaces with clean engine oil.
2. Install the camshaft to the cylinder head.




Important: Ensure the pin on the exhaust camshaft is approximately in the 1 o'clock position and/or that the pin on the intake camshaft is approximately in the 11 o'clock position to allow for minimal load on the camshaft when installing the bearing caps.

3. Apply a small amount of LOCTITE® 518, or equivalent, on the forward edge of the front bearing caps to ensure an adequate seal between the bearing cap and the cylinder head.



4. The bearing caps for rear (CYL 1, 3, 5) cylinder head are marked L1-L8 (cylinder 1,3,5).



5. Install the camshaft bearing caps in their appropriate position.




Important: Do not allow the sealer to get into the oil journal of the cap.

6. Install the camshaft bearing cap bolts.

Tighten
Tighten the camshaft bearing cap bolts to 8 N·m (71 lb in).




7. Coat the lip of the seal with a small amount of clean engine oil to aid in the installation.
8. Use the J 35268-A to tap the camshaft seal into place.
9. Ensure that the camshaft seal is fully and evenly seated.




Important: Use a new camshaft gear bolt. The required tightening method will stretch the bolt to its yield point. Therefore, the bolt is not reusable.

10. Install the camshaft gear bolt. Use the J 42069 and J42069-2 camshaft gear locks to lock the camshaft gears while tightening.

Tighten
Tighten the camshaft gear bolt to 50 N·m (37 lb ft) + 60° + 15°.

11. Install the timing belt. Timing Belt Replacement
12. Adjust the timing belt. Timing Belt Replacement
13. Install the timing belt cover. Timing Belt Rear Cover Replacement
14. Install the front camshaft cover. Camshaft Cover Replacement
15. Install the intake plenum. Intake Plenum Replacement
16. Install the air cleaner assembly.
17. Connect the negative battery cable.

Tighten
Tighten the battery terminal bolts to 17 N·m (13 lb ft).