Oil Pump: Service and Repair

Oil Pump

Special Tool(s)






Exploded View










Removal

NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan may cause engine failure.

1. Remove the engine front cover. REFER to Engine Front Cover .

2. Rotate the crankshaft clockwise and align the timing marks on the intake VCT (Variable Camshaft Timing) assemblies as shown.





3. Remove the 3 bolts and the LH (Left Hand) valve train oil tube.





4. NOTE: The 303-1248 will hold the camshafts in the TDC (Top Dead Center) position.
Install 303-1248 onto the flats of the LH (Left Hand) camshafts.





5. Remove the 3 bolts and the RH (Right Hand) valve train oil tube.





6. NOTE: The 303-1248 will hold the camshafts in the TDC (Top Dead Center) position.
Install 303-1248 onto the flats of the RH (Right Hand) camshafts.





7. NOTE: The following 3 steps are for primary timing chains that the colored links are not visible.
Mark the timing chain link that aligns with the timing mark on the LH (Left Hand) intake VCT (Variable Camshaft Timing) assembly as shown.





8. Mark the timing chain link that aligns with the timing mark on the RH (Right Hand) intake VCT (Variable Camshaft Timing) assembly as shown.





9. NOTE: The crankshaft sprocket timing mark should be between the 2 colored links.
Mark the 2 timing chain links that align with the timing mark on the crankshaft sprocket as shown.





10. Remove the 2 bolts and the primary timing chain tensioner.





11. Remove the primary timing chain tensioner arm.





12. Remove the 2 bolts and the lower LH (Left Hand) primary timing chain guide.





13. Position the primary timing chain aside and remove the crankshaft timing chain sprocket.






14. Remove the 2 bolts and the oil pump screen and pickup tube.

- Discard the O-ring seal.






15. Remove the 3 bolts and the oil pump.





Installation

NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan may cause engine failure.

1. Install the oil pump and the 3 bolts.
- Tighten to 10 Nm (89 lb-in).





2. Using a new O-ring seal, install the oil pump screen and pickup tube and the 2 bolts.
- Tighten to 10 Nm (89 lb-in).





3. Install the crankshaft timing chain sprocket with timing dot mark out.





4. NOTE: It may be necessary to rotate the camshafts slightly, to align the timing marks.
Position the primary timing chain with the colored links aligned with the timing marks on the VCT assemblies and the crankshaft sprocket.





5. Install the lower LH (Left Hand) primary timing chain guide and the 2 bolts.






6. Install the primary timing chain tensioner arm.





7. Reset the primary timing chain tensioner.

1. Release the ratchet detent.

2. Using a soft-jawed vise, compress the ratchet plunger.

3. Align the hole in the ratchet plunger with the hole in the tensioner housing.

4. Install a suitable lockpin.






8. NOTE: It may be necessary to rotate the camshafts slightly to remove slack from the timing chain to install the tensioner.
Install the primary tensioner and the 2 bolts.
- Tighten to 10 Nm (89 lb-in).

- Remove the lockpin.






9. As a post-check, verify correct alignment of all timing marks.

- There are 48 links in between the RH (Right Hand) intake VCT (Variable Camshaft Timing) assembly colored link (1) and the LH (Left Hand) intake VCT (Variable Camshaft Timing) assembly colored link (2).

- There are 35 links in between LH (Left Hand) intake VCT (Variable Camshaft Timing) assembly colored link (2) and the 2 crankshaft sprocket links (3).






10. Remove the RH (Right Hand)303-1248.





11. Install the RH (Right Hand) valve train oil tube and the 3 bolts and tighten in 2 stages.
- Stage 1: Tighten to 8 Nm (71 lb-in).
- Stage 2: Tighten an additional 45 degrees.





12. Remove the LH (Left Hand)303-1248.





13. Install the LH (Left Hand) valve train oil tube and the 3 bolts and tighten in 2 stages.
- Stage 1: Tighten to 8 Nm (71 lb-in).
- Stage 2: Tighten an additional 45 degrees.





14. Install the engine front cover. REFER to Engine Front Cover .