SECTION 303-01A: Engine — 3.5L Ti-VCT
| 2014 Flex Workshop Manual
|
ASSEMBLY
| Procedure revision date: 05/02/2013
|
![]() | 2,200# Floor Crane, Fold Away
300-OTC1819E |
![]() | Alignment Pins
307-399 |
![]() | Compressor, Piston Ring
303-D032 (D81L-6002-C) |
![]() | Dial Indicator Gauge with Holding Fixture
100-002 (TOOL-4201-C) |
![]() | Eye, Engine Lift
303-1245 |
![]() | Handle
205-153 (T80T-4000-W) |
![]() | Hold Down, Secondary Chain
303-1530 |
![]() | Installer, Crankshaft Vibration Damper
303-102 (T74P-6316-B) |
![]() | Installer, Front Cover Oil Seal
303-335 |
![]() | Installer, Differential Bearing Cone
205-142 (T80T-4000-J) |
![]() | Installer, Front Crankshaft Seal
303-1251 |
![]() | Installer, VCT Spark Plug Tube Seal
303-1247/2 |
![]() | Spreader Bar
303-D089 (D93P-6001-A3) or equivalent |
![]() | Tool, Camshaft Holding
303-1248 |
Item | Specification |
---|---|
Motorcraft® High Temperature Nickel Anti-Seize Lubricant
XL-2 | — |
Motorcraft® High Performance Engine RTV Silicone
TA-357 | WSE-M4G323-A6 |
Motorcraft® Metal Surface Prep
ZC-31-A | — |
Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor Oil (US); Motorcraft® SAE 5W-20 Super Premium Motor Oil (Canada)
XO-5W20-QSP (US); CXO-5W20-LSP12 (Canada) | WSS-M2C945-A |
Motorcraft® Silicone Gasket Remover
ZC-30 | — |
Motorcraft® Orange Antifreeze/Coolant Concentrated
VC-3-B (US); CVC-3-B2 (Canada) | WSS-M97B44-D |
Motorcraft® Silicone Brake Caliper Grease and Dielectric Compound
XG-3-A | ESE-M1C171-A |
Motorcraft® Thread Sealant with PTFE
TA-24 | WSK-M2G350-A2 |
Item | Part Number | Description |
---|---|---|
1 | 12C508 | Engine control wiring harness |
2 | 9424 | Upper intake manifold |
3 | 9F797 | Fuel rail |
4 | 9J444 | Upper intake manifold support bracket |
5 | 9J447 | Lower intake manifold |
6 | 8A586 | Thermostat housing |
7 | 9N271 | Coolant tube |
8 | 12A699 | Knock Sensor (KS) |
Item | Part Number | Description |
---|---|---|
1 | W701512 | Crankshaft pulley bolt |
2 | N806165 | Crankshaft pulley washer |
3 | 6316 | Crankshaft pulley |
4 | 6700 | Crankshaft front seal |
5 | 6B209 | Accessory drive belt tensioner |
6 | 6019 | Engine front cover |
Item | Part Number | Description |
---|---|---|
1 | 6083 | LH cylinder head gasket |
2 | 6050 | LH cylinder head |
3 | 12405 | Spark plug (3 required) |
4 | 6500 | Valve tappet (12 required) |
5 | 6A269 | LH exhaust camshaft |
6 | 6A267 | LH intake camshaft |
7 | 6C525 | Exhaust camshaft Variable Camshaft Timing (VCT) assembly |
8 | 6C524 | Intake camshaft VCT assembly |
9 | 6C256 | LH secondary timing chain |
10 | 6B297 | Exhaust camshaft VCT oil control solenoid |
11 | 6B297 | Intake camshaft VCT oil control solenoid |
12 | 6B280 | Camshaft mega cap |
13 | 6K297 | LH secondary tensioner shoe |
14 | 6A258 | LH camshaft cap (6 required) |
15 | 6K602 | Valve train oil feed tube |
16 | 6C270 | LH secondary timing chain tensioner |
17 | 6K273 | LH valve cover |
18 | 6750 | Oil level indicator |
Item | Part Number | Description |
---|---|---|
1 | 6051 | RH cylinder head gasket |
2 | 14B485 | CHT sensor jumper harness |
3 | 6G004 | Cylinder Head Temperature (CHT) sensor |
4 | 17A084 | Engine lift eye |
5 | 6049 | RH cylinder head |
6 | 12405 | Spark plug (3 required) |
7 | 6500 | Valve tappet (12 required) |
8 | 6A266 | RH intake camshaft |
9 | 6A268 | RH exhaust camshaft |
10 | 6A258 | RH camshaft cap (8 required) |
11 | 6K602 | Valve train oil feed tube |
12 | 6C525 | Exhaust camshaft Variable Camshaft Timing (VCT) assembly |
13 | 6C524 | Intake camshaft VCT assembly |
14 | 6C256 | RH secondary timing chain |
15 | 6B280 | Camshaft mega cap |
16 | 6K297 | RH secondary tensioner shoe |
17 | 6B297 | Exhaust camshaft VCT oil control solenoid |
18 | 6B297 | Intake camshaft VCT oil control solenoid |
19 | 6C270 | RH secondary timing chain tensioner |
20 | 6K271 | RH valve cover |
Item | Part Number | Description |
---|---|---|
1 | 6268 | Timing chain |
2 | 6306 | Crankshaft timing sprocket |
3 | 6L266 | Primary timing chain tensioner |
4 | 6K255 | Primary timing chain tensioner arm |
5 | 6B274 | LH lower primary timing chain guide |
6 | 6K297 | RH primary timing chain guide |
7 | 6K297 | LH upper primary timing chain guide |
8 | 8501 | Coolant pump |
Item | Part Number | Description |
---|---|---|
1 | 6675 | Oil pan |
2 | 6622 | Oil pump screen and pickup tube |
3 | 6625 | Oil pump screen and pickup tube O-ring seal |
4 | 6621 | Oil pump |
5 | 6010 | Cylinder block |
6 | 6D327 | Crankshaft rear seal retainer |
7 | 12A227 | Crankshaft sensor ring |
8 | 6375 | Flexplate |
9 | 9278 | Engine Oil Pressure (EOP) switch |
10 | 6881 | Oil filter adapter |
11 | 6714 | Engine oil filter |
12 | 6881 | Oil filter adapter with oil cooler |
13 | 6A642 | Oil cooler |
Item | Part Number | Description |
---|---|---|
1 | — | Piston compression upper ring (part of 6148) (6 required) |
2 | — | Piston compression lower ring (part of 6148) (6 required) |
3 | — | Piston oil control upper segment ring (part of 6148) (6 required) |
4 | — | Piston oil control spacer (part of 6148) (6 required) |
5 | — | Piston oil control lower segment ring (part of 6148) (6 required) |
6 | 6140 | Piston pin retainer (12 required) |
7 | 6135 | Piston pin (6 required) |
8 | 6110 | Piston (6 required) |
9 | 6200 | Connecting rod (6 required) |
10 | 6211 | Connecting rod upper bearing (6 required) |
11 | 6211 | Connecting rod lower bearing (6 required) |
12 | — | Connecting rod cap (part of 6200) (6 required) |
13 | 6010 | Cylinder block |
14 | 6K868 | Piston oil cool valve (6 required) |
15 | 6333 | Cylinder block crankshaft main bearing (4 required) |
16 | 6A341 | Crankshaft upper thrust washer (2 required) |
17 | 6303 | Crankshaft |
18 | 6A338 | Lower crankshaft main bearings (4 required) |
19 | 6K302 | Crankshaft lower thrust washer |
20 | 6325 | Lower crankshaft main bearing caps (4 required) |
21 | 6C364 | Main bearing cap support brace |
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.
NOTE: Assembly of the engine requires various inspections/measurements of the engine components (engine block, crankshaft, connecting rods and pistons). These inspections/measurements will aid in determining if the engine components will require replacement. For additional information, refer to Section 303-00 .
NOTE: If the cylinder head(s) is replaced, a new secondary timing chain tensioner will need to be installed.
All vehicles
NOTE: This procedure is for selecting bearings using a new crankshaft.
Select the crankshaft main bearings for each crankshaft journal.NOTE: This chart is for selecting main bearings 1 and 4 only, the remaining bearings will be selected using a different chart in the next step.
Using the data recorded earlier and the Bearing Select Fit Chart, Standard Bearings, determine the required bearing grade for main bearings 1 and 4.NOTE: This chart is for selecting main bearings 2 and 3 only.
Using the data recorded earlier and the Bearing Select Fit Chart, Standard Bearings, determine the required bearing grade for main bearings 2 and 3.NOTICE: The rod cap installation must keep the same orientation as marked during disassembly or engine damage may occur.
Using the original connecting rod cap bolts, install the connecting rod caps and bolts.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.
Lubricate the upper crankshaft main bearings with clean engine oil and install the 4 upper crankshaft main bearings in the cylinder block.NOTE: Do not install the upper thrust bearings until the crankshaft is installed.
NOTE: Lubricate the thrust surfaces of the crankshaft with clean engine oil.
Install the crankshaft onto the upper main bearings.NOTE: Make sure the side of the thrust washer, with the wide oil grooves, faces the crankshaft thrust surface.
Push the crankshaft rearward and install the rear crankshaft upper thrust washer at the back of the No. 4 rear bulkhead.NOTE: Make sure the side of the thrust washer, with the wide oil grooves, faces the crankshaft thrust surface.
Push the crankshaft forward and install the front crankshaft upper thrust washer at the front of the No. 4 rear bulkhead.NOTE: Make sure the side of the thrust washer, with the wide oil grooves, faces the crankshaft thrust surface.
NOTE: To aid in assembly, apply petroleum jelly to the back of the crankshaft thrust washer.
Install the lower crankshaft thrust washer to the back side of the No. 4 rear main bearing cap, with the tab aligned with the cutout in the main bearing cap.NOTE: While tightening the main bearing vertical bolts, push the crankshaft forward and the No. 4 main bearing cap rearward to seat the crankshaft thrust washers.
Tighten the main bearing bolts in the sequence shown in 2 stages.NOTICE: The rod cap installation must keep the same orientation as marked during disassembly or engine damage may occur.
Prepare the connecting rod and cap.NOTICE: Be sure not to scratch the cylinder wall or crankshaft journal with the connecting rod. Push the piston down until the connecting rod bearing seats on the crankshaft journal.
NOTE: The next 3 steps are for all 6 connecting rods, rod caps and pistons. Only 1 connecting rod, rod cap and piston is shown.
NOTE: Lubricate the pistons, piston rings, connecting rod bearings and the entire cylinder bores with clean engine oil.
NOTE: Make sure the piston rings are positioned to specifications for installation. For additional information, refer to Piston in this section.
NOTE: If the piston and or connecting rod are being installed new, the piston rod orientation marks and the arrow on the top of the dome of the piston should be facing toward the front of the engine block.
NOTE: If the piston and connecting rod are to be reinstalled, they must be installed in the same orientation as disassembled.
Using the Piston Ring Compressor, install the piston and connecting rod assemblies.NOTICE: The rod cap installation must keep the same orientation as marked during disassembly or engine damage may occur.
NOTE: After installation of each piston, connecting rod, rod cap and bolts, rotate the crankshaft to verify smooth operation.
Install the 6 connecting rod cap and the 12 bolts.NOTICE: Failure to use Motorcraft® High Performance Engine RTV Silicone may cause the engine oil to foam excessively and result in serious engine damage.
NOTE: The crankshaft rear seal retainer must be installed and the bolts tightened within 4 minutes of sealant application.
NOTE: The stamped steel crankshaft rear seal retainer plate comes with the crankshaft rear seal.
Apply a 3 mm (0.11 in) bead of Motorcraft® High Performance Engine RTV Silicone to the sealing surface of the crankshaft rear seal retainer.NOTE: Lubricate the crankshaft rear seal with clean engine oil.
Install the crankshaft rear seal retainer and the 8 bolts.NOTE: The A/C compressor must be installed on the cylinder block and the 2 bolts tightened prior to installing the oil pan.
Install the A/C compressor and the 2 bolts.NOTICE: Failure to use Motorcraft® High Performance Engine RTV Silicone may cause the engine oil to foam excessively and result in serious engine damage.
Apply a 3 mm (0.11 in) bead of Motorcraft® High Performance Engine RTV Silicone to the sealing surface of the oil pan.NOTICE: Failure to use Motorcraft® High Performance Engine RTV Silicone may cause the engine oil to foam excessively and result in serious engine damage.
NOTE: The oil pan and the 4 specified bolts must be installed and the oil pan aligned to the cylinder block and A/C compressor within 4 minutes of sealant application. Final tightening of the oil pan bolts must be carried out within 60 minutes of sealant application.
Apply a 5.5 mm (0.21 in) bead of Motorcraft® High Performance Engine RTV Silicone to the 2 crankshaft seal retainer plate-to-cylinder block joint areas on the sealing surface of the oil pan.NOTE: The oil pan and the 4 specified bolts must be installed within 4 minutes of the start of sealant application.
Install the oil pan and bolts 10, 11, 13 and 14.NOTE: Apply clean engine coolant to the O-ring seal prior to installation.
Using a new O-ring seal, install the coolant inlet tube and thermostat assembly.NOTE: If the cylinder head is replaced, a new secondary timing chain tensioner will need to be installed.
Install a new gasket, the LH cylinder head and 8 new bolts. Tighten in the sequence shown in 5 stages:NOTE: The valve tappets must be installed in their original positions.
NOTE: Coat the valve tappets with clean engine oil prior to installation.
NOTE: LH shown, RH similar.
Install the 24 valve tappets.NOTE: Align the bracket with the index mark made during removal.
Install the upper intake manifold bracket and the bolt.NOTICE: The crankshaft must remain in the freewheeling position (crankshaft dowel pin at 9 o'clock) until after the camshafts are installed and the valve clearance is checked/adjusted. Do not turn the crankshaft until instructed to do so. Failure to follow this process will result in severe engine damage.
Position the crankshaft dowel pin in the 9 o'clock position.NOTE: Coat the camshafts with clean engine oil prior to installation.
Position the camshafts onto the RH cylinder head in the neutral position as shown.NOTICE: The camshaft seal gaps must be at the 12 o'clock position or damage to the engine may occur.
Position the 4 RH camshaft seals gaps as shown.NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.
Install the 6 RH camshaft caps, mega cap, valve train oil tube and the 15 bolts in the sequence shown.NOTICE: If any components are installed new, the engine valve clearance must be checked/adjusted or engine damage may occur.
NOTE: Use a camshaft sprocket bolt to turn the camshafts.
Using a feeler gauge, confirm that the valve tappet clearances are within specification. If valve tappet clearances are not within specification, the clearance must be adjusted by installing new valve tappet(s) of the correct size. For additional information, refer to Valve Clearance Check in this section.NOTE: The Camshaft Holding Tool will hold the camshafts in the TDC position.
Install the Camshaft Holding Tool onto the flats of the RH camshafts.NOTE: It may be necessary to rotate the camshafts slightly, to install the RH secondary timing assembly.
Position the 2 RH VCT assemblies and secondary timing chain onto the camshafts by aligning the holes in the VCT assemblies with the dowel pins in the camshafts.NOTE: The 2 VCT oil control solenoids are removed for clarity.
Compress the RH secondary timing chain tensioner and remove the Secondary Chain Hold Down.NOTE: Coat the camshafts with clean engine oil prior to installation.
Position the camshafts onto the LH cylinder head in the neutral position as shown.NOTICE: The camshaft seal gaps must be at the 12 o'clock position or damage to the engine may occur.
Position the 4 LH camshaft seals gaps as shown.NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.
Install the 6 LH camshaft caps, mega cap, valve train oil tube and the 15 bolts in the sequence shown.NOTICE: If any components are installed new, the engine valve clearance must be checked/adjusted or engine damage may occur.
NOTE: Use a camshaft sprocket bolt to turn the camshafts.
Using a feeler gauge, confirm that the valve tappet clearances are within specification. If valve tappet clearances are not within specification, the clearance must be adjusted by installing new valve tappet(s) of the correct size. For additional information, refer to Valve Clearance Check in this section.NOTE: The Camshaft Holding Tool will hold the camshafts in the Top Dead Center (TDC) position.
Install the Camshaft Holding Tool onto the flats of the LH camshafts.NOTE: It may be necessary to rotate the camshafts slightly, to install the LH secondary timing assembly.
Position the 2 LH VCT assemblies and secondary timing chain onto the camshafts by aligning the holes in the VCT assemblies with the dowel pins in the camshafts.NOTE: The 2 VCT oil control solenoids are removed for clarity.
Compress the LH secondary timing chain tensioner and remove the Secondary Chain Hold Down.NOTE: It may be necessary to rotate the camshafts slightly, to align the timing marks.
Install the primary timing chain with the colored links aligned with the timing marks on the VCT assemblies and the crankshaft sprocket.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.NOTICE: Do not use excessive force when installing the Variable Camshaft Timing (VCT) oil control solenoid. Damage to the mega cap could cause the cylinder head to be inoperable. If difficult to install the VCT oil control solenoid, inspect the bore and VCT oil control solenoid to ensure there are no burrs, sharp edges or contaminants present on the mating surface. Only clean the external surfaces as necessary.
NOTE: A slight twisting motion will aid in the installation of the VCT oil control solenoid.
NOTE: Keep the VCT oil control solenoid clean of dirt and debris.
Install the LH intake VCT oil control solenoid and the bolt.NOTICE: Do not use excessive force when installing the Variable Camshaft Timing (VCT) oil control solenoid. Damage to the mega cap could cause the cylinder head to be inoperable. If difficult to install the VCT oil control solenoid, inspect the bore and VCT oil control solenoid to ensure there are no burrs, sharp edges or contaminants present on the mating surface. Only clean the external surfaces as necessary.
NOTE: A slight twisting motion will aid in the installation of the VCT oil control solenoid.
NOTE: Keep the VCT oil control solenoid clean of dirt and debris.
Install the RH intake VCT oil control solenoid and the bolt.NOTICE: Only use a 3M™ Roloc® Bristle Disk (2-in white, part number 07528) to clean the engine front cover. Do not use metal scrapers, wire brushes or any other power abrasive disk to clean front cover.
Clean the engine front cover using a 3M™ Roloc® Bristle Disk (2-in white, part number 07528) in a suitable tool turning at the recommended speed of 15,000 rpm.NOTICE: Place clean, lint-free shop towels over exposed engine cavities. Carefully remove the towels so foreign material is not dropped into the engine. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages or the oil pan, may cause engine failure.
NOTICE: Do not use wire brushes, power abrasive discs or 3M™ Roloc® Bristle Disk (2-in white part number 07528) to clean the sealing surfaces of engine block, cylinder heads, and oil pan. These tools can cause contamination that will cause premature engine failure. Remove all traces of the gasket.
NOTICE: Failure to use Motorcraft® High Performance Engine RTV Silicone may cause the engine oil to foam excessively and result in serious engine damage.
NOTE: The engine front cover and bolts 7, 8, 15, 17, 18, 21 and 22 must be installed within 4 minutes of the initial sealant application. The remainder of the engine front cover bolts must be installed and tightened within 35 minutes of the initial sealant application. If the time limits are exceeded, the sealant must be removed, the sealing area cleaned and sealant reapplied. To clean the sealing area, use silicone gasket remover and metal surface prep. Failure to follow this procedure can cause future oil leakage.
Apply a 3.0 mm (0.11 in) bead of Motorcraft® High Performance Engine RTV Silicone to the engine front cover sealing surfaces including the 4 inner bolt bosses.NOTE: Make sure the 2 locating dowel pins are seated correctly in the cylinder block.
Install the engine front cover and bolts 7, 8, 15, 17, 18, 21 and 22.NOTE: Do not tighten the bolt at this time.
Install the M6 engine front cover bolt.NOTE: Do not tighten the bolts at this time.
Install the 3 M10 engine front cover bolts.NOTICE: Do not expose the Motorcraft® High Performance Engine RTV Silicone to engine oil for at least 90 minutes after installing the engine front cover. Failure to follow this instruction may cause oil leakage.
Install the remaining engine front cover bolts. Tighten all of the engine front cover bolts and engine mount bracket bolts in the sequence shown in 7 stages:NOTE: Apply thread sealant with PTFE to the Engine Oil Pressure (EOP) switch threads.
Install the EOP switch.NOTICE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.
Using new intake manifold and thermostat housing gaskets, install the lower intake manifold and the 10 bolts.NOTE: Lubricate the 2 Camshaft Position (CMP) sensor O-ring seals with clean engine oil.
Install the 2 RH CMP sensors and the 2 bolts.NOTE: Lubricate the 2 CMP sensor O-ring seals with clean engine oil.
Install the 2 LH CMP sensors and the 2 bolts.Front Wheel Drive (FWD) vehicles
NOTICE: Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.
Using a new gasket, install the RH exhaust manifold and 6 new nuts. Tighten in 2 stages in the sequence shown:All vehicles
NOTE: Oil filter adapter with oil cooler shown, oil filter adapter without oil cooler similar.
Using a new gasket, install the oil filter adapter and the 3 bolts.NOTE: Installation of new seals is only required if damaged seals were removed.
Using the VCT Spark Plug Tube Seal Installer and Handle, install new RH spark plug tube seals.NOTE: Installation of new seals is only required if damaged seals were removed.
Using the Differential Bearing Cone Installer and Handle, install new RH VCT solenoid seal(s).NOTICE: Failure to use the correct Motorcraft® High Performance Engine RTV Silicone may cause the engine oil to foam excessively and result in serious engine damage.
NOTE: If the valve cover is not installed and the fasteners tightened 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. Failure to follow this procedure can cause future oil leakage.
Apply an 8 mm (0.31 in) bead of Motorcraft® High Performance Engine RTV Silicone to the engine front cover-to-RH cylinder head joints.NOTE: Installation of new seals is only required if damaged seals were removed.
Using the VCT Spark Plug Tube Seal Installer and Handle, install new LH spark plug tube seals.NOTE: Installation of new seals is only required if damaged seals were removed.
Using the Differential Bearing Cone Installer and Handle, install new LH VCT solenoid seal(s).NOTICE: Failure to use Motorcraft® High Performance Engine RTV Silicone may cause the engine oil to foam excessively and result in serious engine damage.
NOTE: If the valve cover is not installed and the fasteners tightened 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. Failure to follow this procedure can cause future oil leakage.
Apply an 8 mm (0.31 in) bead of Motorcraft® High Performance Engine RTV Silicone to the engine front cover-to-LH cylinder head joints.NOTE: On All-Wheel Drive (AWD) vehicles the Catalyst Monitor Sensor (CMS) electrical connector will be connected during the engine installation procedure.
Install the engine wiring harness to the RH valve cover.NOTE: Apply a small amount of dielectric grease to the inside of the ignition coil-on-plug boots before attaching to the spark plugs.
Install the 3 RH coil-on-plugs and the 3 bolts.NOTE: Apply a small amount of dielectric grease to the inside of the ignition coil-on-plug boots before attaching to the spark plugs.
Install the 3 LH -coil-on-plugs and the 3 bolts.NOTE: Apply clean engine oil to the crankshaft front seal bore in the engine front cover.
Using the Crankshaft Vibration Damper Replacer and Front Crankshaft Seal Installer, install a new crankshaft front seal.NOTE: Lubricate the outside diameter sealing surfaces with clean engine oil.
Using the Crankshaft Vibration Damper Replacer and Front Cover Oil Seal Installer, install the crankshaft pulley.NOTE: One of the 8 flexplate holes are offset so the flexplate can only be installed in one position.
Install the flexplate and the 8 bolts.