Part 1

Engine











Special Tool(s)








Material











Engine - Upper End








Engine - Front End








Engine - Lower end





1. Record the main bearing code found on the front of the engine block.





2. Record the main bearing code found on the back of the crankshaft.





3. Using the data recorded earlier and the Bearing Select Fit Chart, Standard Bearings, determine the required bearing grade for each main bearing.
- Read the first letter of the engine block main bearing code and the first letter of the crankshaft main bearing code.
- Read down the column below the engine block main bearing code letter, and across the row next to the crankshaft main bearing code letter, until the 2 intersect. This is the required bearing grade for the number one crankshaft main bearing.
- As an example, if the engine block code letter is "F" and the crankshaft code letter is "D", the correct bearing grade for this main bearing is a "2".
- Repeat this process for the remaining 4 main bearings.





4. If oversize bearings are being used, use the procedure in the previous step and the Bearing Select Fit Chart, Oversize Bearings to determine the required bearing grade for each main bearing.

5. NOTE: Before assembling the cylinder block, all sealing surfaces must be free of chips, dirt, paint and foreign material. Also, make sure the coolant and oil passages are clear.

Install the crankshaft upper main bearings into the cylinder block and lubricate them with clean engine oil.





6. NOTE: The upper thrust washers are shown for location purposes only. Do not install the upper thrust washers until the crankshaft is installed. Refer to the following 2 steps.

Install the crankshaft onto the upper crankshaft main bearings.





7. NOTE: The oil groove on the thrust washer must face toward the front of the engine (against the crankshaft thrust surface).

Push the crankshaft rearward and install the rear crankshaft upper thrust washer at the back of the No. 5 main boss.





8. NOTE: The oil groove on the thrust washer must face toward the front of the engine (against the crankshaft surface).

Push the crankshaft forward and install the front crankshaft upper thrust washer at the front of the No. 5 main boss.





9. NOTE: To aid in assembly, apply petroleum jelly to the back of the crankshaft thrust washer.

NOTE: The oil groove on the thrust washer must face toward the rear of the engine (crankshaft surface).

Install the lower crankshaft thrust washer to the back side of the No. 5 main bearing cap, with oil grooves facing the crankshaft surface.

10. Install the crankshaft lower main bearings into the main bearing caps and lubricate them with clean engine oil. Locate the main bearing cap on the cylinder block and, keeping the cap as square as possible, alternately draw the cap down evenly using the cap fasteners.





11. Install the dowel pins so the flat sides face the crankshaft.





12. Install the vertical main bearing cap fasteners and tighten in the sequence shown.
- Tighten to 40 Nm (30 ft. lbs.).
- Tighten an additional 90 degrees.





13. Install the side bolts and tighten them in the sequence shown.
- Tighten to 30 Nm (22 ft. lbs.).
- Tighten an additional 90 degrees.

14. Check the piston-to-cylinder block and piston ring clearances.
15. Assemble the 8 pistons.





16. Make sure the ring gaps (oil spacer-A, oil ring-B, compression ring-C) are correctly spaced around the circumference of the piston.





17. CAUTION: Do not scratch the cylinder walls or crankshaft journals with the connecting rod.

NOTE: The following piston installation steps are for all 8 connecting rods, rod bearings and pistons. Only one connecting rod, rod bearing and piston is shown.

Use the special tools to install the connecting rod with the upper connecting rod bearing in place.
- Lubricate the piston and ring with clean engine oil
- Lubricate the rod bearings with clean engine oil.





18. CAUTION: Do not scratch the cylinder walls or crankshaft journals with the connecting rod.

Once the connecting rod is seated on the crankshaft journal, remove the special tools.

19. CAUTION: The rod cap installation must keep the same orientation as marked during disassembly.

NOTE: The connecting rod caps are of the "cracked" design and must mate with the connecting rod ends. Excessive bearing clearance will result if not mated correctly. Position the lower bearing and connecting rod, and install the new bolts loosely.





20. NOTE: Main bearing caps are removed for clarity.

Tighten the bolts in 2 stages, in the sequence shown.
- Stage 1: Tighten to 43 Nm (32 ft. lbs.).
- Stage 2: Tighten an additional 105 degrees.





21. Position the oil pump and install the bolts.
- Tighten to 10 Nm (89 inch lbs.).





22. Install the oil pump screen and pickup tube spacer.
- Tighten to 25 Nm (18 ft. lbs.).





23. CAUTION: Make sure the O-ring is in place and not damaged. A missing or damaged O-ring can cause foam in the lubrication system, low oil pressure and severe engine damage.

NOTE: Clean and inspect the mating surfaces and install a new O-ring. Lubricate the O-ring with clean engine oil prior to installation.

Position the oil pump screen and pickup tube and install the bolts.
- Tighten the oil pump screen and pickup tube-to-oil pump bolts to 10 Nm (89 inch lbs.).
- Tighten the oil pump screen and pickup tube-to-spacer bolt to 25 Nm (18 ft. lbs.).





24. Position the crankshaft with the special tool, hen remove the tool.





25. CAUTION: Make sure all coolant residue and foreign material are cleaned from the block surface and cylinder bore.

CAUTION: The use of sealing aids (aviation cement, copper spray and glue) is not permitted. The gasket must be installed dry.

CAUTION: The cylinder head bolts must be discarded and new bolts installed. They are tighten-to-yield designed and cannot be reused.

NOTE: Do not turn the crankshaft until instructed to do so.

NOTE: LH shown, RH similar.

Using the special tools, position the cylinder head gaskets and cylinder heads over the dowels and install the cylinder head bolts loosely.





26. Tighten the bolts in 3 stages, in the sequence shown. RH shown, LH similar.
- Stage 1: Tighten to 40 Nm (30 ft. lbs.).
- Stage 2: Tighten an additional 90 degrees.
- Stage 3: Tighten an additional 90 degrees.





27. Remove the special tool from the LH cylinder head.





28. Remove the special tool from the RH cylinder head.





29. Install the hydraulic lash adjusters into the RH and LH cylinder heads.
- Lubricate the hydraulic lash adjusters with clean engine oil prior to installation.

30. Install the LH and RH camshafts.

Lubricate the camshaft and camshaft journals with clean engine oil prior to installation.





31. NOTE: LH shown, RH similar.

Install the LH and RH camshaft bearing caps in their original locations.
- Lubricate the camshaft bearing caps with clean engine oil.
- Position the front camshaft bearing cap.
- Position the remaining camshaft bearing caps.
- Install the bolts loosely.
- Tighten to 10 Nm (89 inch lbs.) in the sequence shown.





32. CAUTION: Damage to the camshaft phaser sprocket assembly will occur if mishandled or used as a lifting or leveraging device.

NOTE: LH shown, RH similar.

Install the camshaft phaser sprockets and new camshaft phaser bolts finger tight.





33. CAUTION: Damage to the camshaft phaser sprocket assembly will occur if mishandled or used as a lifting or leveraging device.

CAUTION: Only use hand tools to remove the camshaft phaser sprocket assembly or damage may occur to the camshaft or camshaft phaser unit.

CAUTION: Damage to the camshaft phaser sprocket assembly will occur if mishandled or used as a lifting or leveraging device.

NOTE: LH shown, RH similar.

Using the special tool, tighten the LH and RH camshaft phaser sprocket bolts in 2 stages.
- Stage 1: Tighten to 40 Nm (30 ft. lbs.).
- Stage 2: Tighten an additional 90 degrees.





34. CAUTION: Timing chain procedures must be followed exactly or damage to valves and pistons will result.

CAUTION: Prior to installation, inspect the tensioner-sealing bead for seal integrity. If cracks, tears, separation from the tensioner body or permanent compression of the seal bead is observed, install a new tensioner.

Compress the tensioner plunger, using a vise.





35. Install a retaining clip on the tensioner to hold the plunger in during installation.

36. Remove the tensioner from the vise.





37. If the copper links are not visible, mark 2 links on one end and I link on the other end, and use as timing marks.





38. Install the crankshaft sprocket, making sure the flange faces forward.





39. Install the 4 bolts and the LH and RH timing chain guides.
- Tighten to 10 Nm (89 inch lbs.).





40. Position the lower end of the LH (inner) timing chain on the crankshaft sprocket, aligning the timing mark on the outer flange of the crankshaft sprocket with the single copper (marked) link on the chain.





41. NOTE: Make sure the upper half of the timing chain is below the tensioner arm dowel.

Position the timing chain on the camshaft sprocket with the camshaft sprocket timing mark positioned between the 2 copper (marked) chain links.





42. NOTE: The LH timing chain tensioner arm has a bump near the dowel hole for identification.

Position the LH timing chain tensioner arm on the dowel pin and install the LH timing chain tensioner and bolts.
- Tighten to 25 Nm (18 ft. lbs.).





43. Remove the retaining clip from the LH timing chain tensioner.





44. Position the lower end of the RH (outer) timing chain on the crankshaft sprocket, aligning the timing mark on the sprocket with the single copper (marked) chain link.





45. NOTE: The lower half of the timing chain must be positioned above the tensioner arm dowel.

Position the RH timing chain on the camshaft sprocket. Make sure the camshaft sprocket timing mark is positioned between the 2 copper (marked) chain links.





46. Position the RH timing chain tensioner arm on the dowel pin and install the RH timing chain tensioner and bolts.
- Tighten to 25 Nm (18 ft. lbs.).





47. Remove the retaining clip from the RH timing chain tensioner.





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





49. Install the crankshaft sensor ring on the crankshaft.





50. Using the special tool, install all of the camshaft roller followers.
- Lubricate the roller followers with clean engine oil prior to installation.





51. CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges which make leak paths. Use a plastic scraping tool to remove all traces of old sealant.

NOTE: If the engine front cover is not secured within 4 minutes, the sealant must be removed and the sealing area cleaned. To clean the sealing area, use silicone gasket remover and metal surface prep. Follow the directions on the packaging. Failure to follow this procedure can cause future oil leakage.

NOTE: Make sure that the engine front cover gasket is in place on the engine front cover before installation.

Apply a bead of silicone gasket and sealant along the cylinder head-to-cylinder block surface at the locations shown.





52. Install a new engine front cover gasket on the engine front cover. Position the engine front cover onto the dowels. Install the fasteners finger-tight.