This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
19100P
1.REMOVE SPARK PLUG
89615
2.REMOVE KNOCK CONTROL SENSOR
89448D
3.REMOVE OIL PRESSURE AND TEMPERATURE SENSOR
15250
4.REMOVE OIL PRESSURE CONTROL VALVE ASSEMBLY
15370
5.REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY
6.REMOVE O-RING
13090D
7.REMOVE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY
13090E
8.REMOVE CAM TIMING CONTROL MOTOR O-RING
15710
9.REMOVE OIL COOLER ASSEMBLY
16261Z
10.REMOVE NO. 1 WATER BY-PASS HOSE
Slide the clip and remove the No. 1 water by-pass hose from the cylinder block sub-assembly.
16264
11.REMOVE NO. 2 WATER BY-PASS HOSE
Slide the clip and remove the No. 2 water by-pass hose from the water by-pass pipe sub-assembly.
12180E
12.REMOVE OIL FILLER CAP ASSEMBLY
Remove the oil filler cap assembly from the cylinder head cover sub-assembly.
12108A
13.REMOVE OIL FILLER CAP GASKET
Remove the oil filler cap gasket from the oil filler cap assembly.
11401G
14.REMOVE CRANKSHAFT POSITION SENSOR
12204C
15.REMOVE PCV VALVE (VENTILATION VALVE SUB-ASSEMBLY)
29300
16.REMOVE VACUUM PUMP ASSEMBLY
for M20 Series Engine, BOSCH Made:
for M20 Series Engine, except BOSCH Made:
13470
17.REMOVE CRANKSHAFT PULLEY ASSEMBLY
| *a | Hold |
| *b | Turn |
Using SST, hold the crankshaft pulley assembly and loosen the crankshaft pulley bolt. Further loosen the crankshaft pulley bolt until 2 or 3 threads remain screwed into the crankshaft.
| *1 | Crankshaft Pulley Bolt |
| *a | Hold |
| *b | Turn |
Using SST and the crankshaft pulley bolt, remove the crankshaft pulley assembly and crankshaft pulley bolt.
Apply lubricant to the threads and end of SST.
16331
18.REMOVE WATER OUTLET
Using an 8 mm socket wrench, remove the 2 bolts, water outlet and water outlet gasket from the cylinder head sub-assembly.
16305E
19.REMOVE WATER BY-PASS OUTLET SUB-ASSEMBLY
Using an 8 mm socket wrench, remove the 3 bolts, water by-pass outlet sub-assembly and water pipe outlet gasket from the cylinder head sub-assembly.
11102A
20.REMOVE CAMSHAFT POSITION SENSOR (for Intake Side)
11102A
21.REMOVE CAMSHAFT POSITION SENSOR (for Exhaust Side)
11201
22.REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
Using an 8 mm socket wrench, remove the 16 bolts and cylinder head cover sub-assembly from the camshaft housing sub-assembly.
Remove the 7 cylinder head cover gaskets from the cylinder head cover sub-assembly.
Remove the camshaft bearing cap oil hole gasket from the No. 1 camshaft bearing cap.
11193
23.REMOVE SPARK PLUG TUBE GASKET
| *a | Protective Tape |
Using a screwdriver, pry out the 4 spark plug tube gaskets from the cylinder head cover sub-assembly.
Be careful not to damage the cylinder head cover sub-assembly.
Tape the screwdriver tip before use.
12315A
24.REMOVE ENGINE MOUNTING BRACKET RH
Remove the 3 bolts and engine mounting bracket RH from the No. 2 timing chain cover assembly.
25.REMOVE STRAIGHT SCREW PLUG
Using a 10 mm hexagon socket wrench, remove the straight screw plug from the No. 2 timing chain cover assembly.
11320B
26.REMOVE NO. 2 TIMING CHAIN COVER ASSEMBLY
Remove the 20 bolts.
Remove the No. 2 timing chain cover assembly from the timing chain cover assembly by prying the No. 2 timing chain cover assembly with a screwdriver with its tip wrapped with protective tape.
| *a | Protective Tape | - | - |
Be careful not to damage the contact surfaces of the No. 2 timing chain cover assembly and timing chain cover assembly.
11301C
27.REMOVE TIMING CHAIN COVER OIL SEAL
| *a | Protective Tape |
| *b | Wooden Block |
Using a screwdriver and wooden block, pry out the timing chain cover oil seal.
Do not damage the surface of the timing chain cover oil seal press fit hole.
Tape the screwdriver tip before use.
28.SET NO. 1 CYLINDER TO TDC (COMPRESSION)
Temporarily install the crankshaft pulley bolt.
| *1 | Crankshaft Timing Gear Key | - | - |
| *a | Approximately 4.63° | *b | Approximately 33.07° |
| *c | Approximately 2.73° | *d | Timing Mark |
Rotate the crankshaft clockwise and align the crankshaft timing gear key as shown in the illustration.
Check that the timing marks on the camshaft timing exhaust gear assembly and camshaft timing gear assembly are as shown in the illustration.
Remove the crankshaft pulley bolt.
As the exhaust camshaft sub-assembly may rotate counterclockwise strongly when the crankshaft pulley bolt is removed, use a wrench to hold the hexagonal portion of the exhaust camshaft sub-assembly.
13507A
29.REMOVE OIL PUMP DRIVE CHAIN SUB-ASSEMBLY
Temporarily install the crankshaft pulley assembly with the crankshaft pulley bolt.
| *a | Bolt |
While holding the crankshaft pulley assembly with SST, remove the bolt.
Remove SST, the crankshaft pulley bolt and crankshaft pulley assembly.
| *1 | Chain Tensioner Plate |
| *2 | Chain Damper Spring |
Remove the chain tensioner plate and chain damper spring.
| *1 | Oil Pump Drive Chain Sub-assembly |
| *2 | Oil Pump Drive Sprocket |
| *3 | Oil Pump Drive Shaft Sprocket |
Remove the oil pump drive sprocket, oil pump drive shaft sprocket and oil pump drive chain sub-assembly.
13050
30.REMOVE CAMSHAFT TIMING GEAR ASSEMBLY
| *a | Loosen |
|
Turn |
Hold the hexagonal portion of the exhaust camshaft sub-assembly with a wrench and turn it clockwise to loosen the chain sub-assembly between the camshaft timing exhaust gear assembly and camshaft timing gear assembly.
Be careful not to damage the camshaft housing sub-assembly, cylinder head sub-assembly and spark plug tube with the wrench.
| *a | Hold |
|
Turn |
Using a wrench, hold the hexagonal portion of the intake camshaft sub-assembly.
Be careful not to damage the camshaft housing sub-assembly, cylinder head sub-assembly and spark plug tube with the wrench.
Do not disassemble the camshaft timing gear assembly.
Using a 10 mm bi-hexagon socket wrench, remove the bolt and camshaft timing gear assembly from the intake camshaft sub-assembly.
13506
31.REMOVE CHAIN SUB-ASSEMBLY
Remove the crankshaft timing sprocket and chain sub-assembly.
13540
32.REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY
Using an 8 mm socket wrench, remove the bolt.
Remove the nut and No. 1 chain tensioner assembly from the timing chain cover assembly.
Make sure that the plunger, check ball assembly and spring do not come out.
| *a | Tape |
Use tape to hold the plunger inside the No. 1 chain tensioner assembly.
Make sure that the plunger, check ball assembly and spring do not come out.
If the No. 1 chain tensioner assembly comes apart, reinstall the parts as shown in the illustration.
| *a | Plunger | *b | Check Ball Assembly |
| *c | Spring | *d | No. 1 Chain Tensioner Assembly Body |
13559
33.REMOVE CHAIN TENSIONER SLIPPER
Remove the bolt and chain tensioner slipper from the timing chain cover assembly.
13561
34.REMOVE NO. 1 CHAIN VIBRATION DAMPER
Remove the 2 bolts and No. 1 chain vibration damper from the timing chain cover assembly.
13070A
35.REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY
Using a wrench, hold the hexagonal portion of the exhaust camshaft sub-assembly.
Be careful not to damage the camshaft housing sub-assembly, cylinder head sub-assembly or spark plug tube with the wrench.
Using a 5 mm hexagon socket wrench, remove the 3 bolts.
| *1 | Camshaft Timing Exhaust Gear Assembly |
| *2 | Camshaft Timing Valve Assembly |
Remove the camshaft timing exhaust gear assembly and camshaft timing valve assembly from the exhaust camshaft sub-assembly.
11310
36.REMOVE TIMING CHAIN COVER ASSEMBLY
Remove the 20 bolts and timing chain cover assembly from the camshaft housing sub-assembly, cylinder head sub-assembly, cylinder block sub-assembly, stiffening crankcase assembly and oil pump assembly.
Remove the timing chain cover assembly by prying between the cylinder head sub-assembly, camshaft housing sub-assembly, cylinder block sub-assembly, oil pump assembly and stiffening crankcase assembly with a screwdriver with its tip wrapped with protective tape.
| *a | Protective Tape | - | - |
Be careful not to damage the contact surfaces of the cylinder head sub-assembly, camshaft housing sub-assembly, cylinder block sub-assembly, stiffening crankcase assembly, oil pump assembly and timing chain cover assembly.
15703A
37.REMOVE OIL NOZZLE VALVE SUB-ASSEMBLY
Remove the oil nozzle valve sub-assembly from the cylinder block sub-assembly.
13471A
38.REMOVE CRANKSHAFT TIMING GEAR KEY
| *a | Protective Tape |
Using a screwdriver, remove the 2 crankshaft timing gear keys from the crankshaft.
Be careful not to damage the crankshaft.
Tape the screwdriver tip before use.
23477
39.REMOVE FUEL PUMP LIFTER GUIDE
Using an 8 mm socket wrench, remove the 2 bolts and fuel pump lifter guide from the No. 4 camshaft bearing cap.
11103
40.REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY
Uniformly loosen and remove the 17 bolts in the order shown in the illustration.
Using a screwdriver, remove the camshaft housing sub-assembly by prying between the cylinder head sub-assembly and camshaft housing sub-assembly at the places shown in the illustration.
Be careful not to damage the contact surfaces of the cylinder head sub-assembly and camshaft housing sub-assembly.
Tape the screwdriver tip before use.
41.REMOVE CAMSHAFT BEARING CAP
| *1 | No. 1 Camshaft Bearing Cap |
| *2 | No. 2 Camshaft Bearing Cap |
| *3 | No. 3 Camshaft Bearing Cap |
| *4 | No. 4 Camshaft Bearing Cap |
Remove the 9 bolts in the order shown in the illustration.
Remove the No. 1 camshaft bearing cap, No. 2 camshaft bearing cap, 2 No. 3 camshaft bearing caps and No. 4 camshaft bearing cap from the camshaft housing sub-assembly.
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
13501A
42.REMOVE INTAKE CAMSHAFT SUB-ASSEMBLY
Remove the intake camshaft sub-assembly from the camshaft housing sub-assembly.
13502B
43.REMOVE EXHAUST CAMSHAFT SUB-ASSEMBLY
Remove the exhaust camshaft sub-assembly from the camshaft housing sub-assembly.
11155B
44.REMOVE CAMSHAFT BEARING CAP SETTING RING PIN
It is not necessary to remove the camshaft bearing cap setting ring pins unless they are being replaced.
Remove the 10 camshaft bearing cap setting ring pins from the camshaft housing sub-assembly.
13801
45.REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY
Remove the 16 No. 1 valve rocker arm sub-assemblies from the cylinder head sub-assembly.
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
13750
46.REMOVE VALVE LASH ADJUSTER ASSEMBLY
Remove the 16 valve lash adjuster assemblies from the cylinder head sub-assembly.
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
13716
47.REMOVE VALVE STEM CAP
Remove the 16 valve stem caps from the cylinder head sub-assembly.
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
16268L
48.REMOVE NO. 1 WATER BY-PASS PIPE
Using an 8 mm socket wrench, remove the 2 bolts, No. 1 water by-pass pipe and gasket from the cylinder head sub-assembly.
11101
49.REMOVE CYLINDER HEAD SUB-ASSEMBLY
| *a | Plate Washer |
|
Front of Engine |
Using a 12 mm socket wrench, uniformly loosen the 10 cylinder head set bolts in the order shown in the illustration. Remove the 10 cylinder head set bolts and 6 plate washers.
Be careful not to drop the plate washers into the cylinder head sub-assembly.
Warpage or cracking of the cylinder head sub-assembly may result from removing the cylinder head set bolts in the incorrect order.
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
Remove the cylinder head sub-assembly from the cylinder block sub-assembly.
11115
50.REMOVE CYLINDER HEAD GASKET
11445
51.REMOVE CYLINDER BLOCK WATER JACKET SPACER
Remove the cylinder block water jacket spacer from the exhaust side of the cylinder block sub-assembly.
Be sure to remove the cylinder block water jacket spacer. If it is not removed, it may fall and become damaged when the cylinder block sub-assembly is inverted.
15601
52.REMOVE OIL FILTER SUB-ASSEMBLY
15600A
53.REMOVE OIL FILTER UNION
Using a 12 mm straight hexagon wrench, remove the oil filter union from the stiffening crankcase assembly.
12101A
54.REMOVE OIL PAN DRAIN PLUG
Remove the oil pan drain plug and gasket from the oil pan sub-assembly.
12101
55.REMOVE OIL PAN SUB-ASSEMBLY
| *a | Nut |
Remove the 12 bolts and 2 nuts.
Insert the blade of an oil pan seal cutter between the oil pan sub-assembly and stiffening crankcase assembly, cut through the applied sealer and remove the oil pan sub-assembly.
Be careful not to damage the contact surfaces of the stiffening crankcase assembly and oil pan sub-assembly.
Be careful not to damage the oil pan sub-assembly flange.
15104
56.REMOVE OIL STRAINER SUB-ASSEMBLY
Using an 8 mm socket wrench, remove the bolt, oil strainer sub-assembly and oil strainer gasket from the stiffening crankcase assembly.
13620B
57.REMOVE ENGINE BALANCER ASSEMBLY
Remove the 6 bolts and engine balancer assembly from the stiffening crankcase assembly.
Do not disassemble the engine balancer assembly.
15520B
58.REMOVE CRANKCASE CAP ASSEMBLY
Remove the clip from the crankcase cap assembly.
Remove the crankcase cap assembly from the stiffening crankcase assembly.
15100
59.REMOVE OIL PUMP ASSEMBLY
11420
60.REMOVE STIFFENING CRANKCASE ASSEMBLY
Remove the 7 bolts.
Using a screwdriver, remove the stiffening crankcase assembly by prying between the stiffening crankcase assembly and cylinder block sub-assembly at the places shown in the illustration.
Be careful not to damage the contact surfaces of the cylinder block sub-assembly and stiffening crankcase assembly.
Tape the screwdriver tip before use.
61.REMOVE STRAIGHT SCREW PLUG
Using a 10 mm hexagon socket wrench, remove the straight screw plug and gasket from the stiffening crankcase assembly.
62.REMOVE WIRE HARNESS CLAMP BRACKET
Remove the bolt and wire harness clamp bracket from the stiffening crankcase assembly.
63.REMOVE STUD BOLT
If a stud bolt is deformed or its threads are damaged, replace it.
64.REMOVE RING PIN
It is not necessary to remove the ring pins unless they are being replaced.
65.REMOVE STRAIGHT PIN
It is not necessary to remove the straight pins unless they are being replaced.
11401L
66.REMOVE REAR ENGINE OIL SEAL
Remove the rear engine oil seal from the cylinder block sub-assembly.