Subaru Legacy BN/BS (2015-2019) Service Manual: Installation
1. After setting the cylinder block to ST, install the crankshaft bearing.
NOTE: Apply a coat of engine oil to the bearing and crankshaft journal. 2. Mount the crankshaft in cylinder block (LH). 3. Apply liquid gasket to the mating surfaces of cylinder block (RH). CAUTION: Do not allow liquid gasket to run over into oil passages, bearing grooves, etc. NOTE: Install within 5 min. after applying liquid gasket. Liquid gasket: THREE BOND 1217G (Part No. K0877Y0100), THREE BOND 1217H or equivalent Liquid gasket applying diameter: 1.0±0.2 mm (0.039±0.008 in)
4. Attach cylinder block (RH) to cylinder block (LH). 5. Apply a coat of engine oil to the washer and bolt thread. 6. Tighten all bolts in the numerical order as shown in the figure. Tightening torque: 12 N·m (1.2 kgf-m, 8.9 ft-lb)
7. Retighten all bolts in the numerical order as shown in the figure. Tightening torque: 18 N·m (1.8 kgf-m, 13.3 ft-lb)
8. Tighten all bolts by 90° in numerical order as shown in the figure.
9. Install the upper bolt to cylinder block. Tightening torque: 25 N·m (2.5 kgf-m, 18.4 ft-lb) NOTE: Remove any liquid gasket squeezed out onto the seal surface between the chain cover and oil pan upper, after tightening the cylinder block connecting bolts.
10. Apply a coat of engine oil to the oil seal inner periphery and outer periphery, and install the rear oil seal using ST1 and ST2. NOTE: Use a new rear oil seal.
11. Face the front of the engine up, standing the engine on one end.
12. Attach the piston ring and oil ring to the piston. (1) Position the top ring gap at (A) in the figure. (2) Position the second ring gap at (B).
(3) Position the upper rail gap at (C) in the figure. (4) Position the expander gap at (D) in the figure. (5) Position the lower rail gap at (E) in the figure.
CAUTION: • Make sure ring gaps do not face the same direction. • Make sure ring gaps are not within the piston skirt area. • Assemble so that the stamp mark N faces towards the top of the piston. 13. Install the #1 piston and connecting rod to the cylinder block. (1) Apply engine oil to the outer circumference of the piston and in the cylinder block. (2) Face the front mark of piston (A) towards the front of the engine, and set the piston to the ST.
(3) Using ST, press-fit the piston into cylinder block. NOTE: When inserting the piston into the cylinder block, perform according to the items listed below. • Insert while lightly tapping the top of the piston with the handle of a plastic hammer. • Insert while making sure that the large end of the connecting rod does not scratch the cylinder liner. • Insert while continually making sure that the large end of the connecting rod does not touch the crankshaft.
(4) Using the ST, turn the crankshaft and match the positions of the crank pin and the large end of the connecting rod.
(5) Install the connecting rod cap. 1. Tighten the #1 connecting rod cap bolts to 10 N·m (1.0 kgf-m, 7.4 ft-lb) in numerical order as shown in the figure, then retighten the bolts to 29 N·m (3.0 kgf-m, 21.4 ft-lb) in numerical order as shown in the figure. 2. Using an angle gauge, tighten the connecting rod cap bolts to the specified angle in numerical order as shown in the figure. Tightening angle: 90° — 95°
14. In the same procedures as for the #1 piston, install the piston and connecting rods to the cylinder block, in the order of #2, #3, #4, #5 and #6. 15. Install the O-ring to the underside of the cylinder block. NOTE: Use new O-rings.
16. Apply liquid gasket to the mating surface of oil pan upper. NOTE: Install within 5 min. after applying liquid gasket. Liquid gasket: THREE BOND 1217G (Part No. K0877Y0100), THREE BOND 1217H or equivalent Liquid gasket applying diameter: 5.0±1.0 mm (0.20±0.04 in)
17. Temporarily tighten the oil pan upper. 18. Tighten the oil pan upper installing bolts in the numerical order as shown in the figure. Tightening torque: 18 N·m (1.8 kgf-m, 13.3 ft-lb)
19. Install the thermostat and thermostat cover. Tightening torque: 6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
20. Install the oil level switch. Oil Level Switch > INSTALLATION 21. Install the oil pump. Oil Pump > INSTALLATION 22. Tighten the oil cooler connector to install the oil cooler to the oil pan upper. Tightening torque: 54 N·m (5.5 kgf-m, 39.8 ft-lb) NOTE: Use new O-rings.
23. Apply liquid gasket to the matching surface of oil pan lower. NOTE: Install within 5 min. after applying liquid gasket. Liquid gasket: THREE BOND 1217G (Part No. K0877Y0100), THREE BOND 1217H or equivalent Liquid gasket applying diameter: 5.0±1.0 mm (0.20±0.04 in)
24. Tighten the oil pan lower installing bolts in the numerical order as shown in the figure. Tightening torque: 6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
25. Install the crankshaft position sensor plate.
26. Install the crankshaft position sensor. Tightening torque: 6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
27. Install the drive plate. Drive Plate > INSTALLATION 28. Install the cylinder head. Cylinder Head > INSTALLATION 29. Install the camshaft. Camshaft > INSTALLATION 30. Install the crank sprocket. Crank Sprocket > INSTALLATION 31. Install the cam sprocket. Cam Sprocket > INSTALLATION 32. Install the timing chain assembly. Timing Chain Assembly > INSTALLATION 33. Install the chain cover. Chain Cover > INSTALLATION 34. Install the crank pulley. Crank Pulley > INSTALLATION 35. Install the engine to the vehicle. Engine Assembly > INSTALLATION |
Assembly
(1)Connecting rod(2)Connecting rod bearing(3)Piston(4)Piston pin(5)Circlip(6)Oil ring(7)Second ring(8)Top ring1. Apply engine oil to the surface of the connecting rod bearing. Attach the connecting ro ...
Inspection
1. CYLINDER BLOCK1. Visually check for cracks or damage. Use liquid penetrant tester on the important sections for checking. Check that there are no marks of gas leaking or water leaking on gasket ins ...
Other materials:
Removal
1. Lift up the vehicle, and then remove the front wheels.2. Adjust the tilt position of the steering column to the neutral position and the telescopic position to the longest position.CAUTION:Always place the tilt lever to the lock position after the steering column is adjusted.3. Remove the under c ...
