Hyundai Tucson: Engine Control System / E-CVVT Motor
| Item | Specification |
| Motor Power (Max.) | 125W / 12V (Room Temperature) |
| Control Current | Max. 48.1A (Room Temperature) |
1.Remove the engine mounting bracket.(Refer to Engine Mechanical System - "Engine Mounting")
2.Remove the engine support bracket (A) after loosening the mounting bolt.
• Loosen the bolts in the sequence shown (6→5→4→3→2→1).
3.Remove the E-CVVT cover connector (A).
4.Remove the E-CVVT cover (A) after loosening the mounting bolt.
• Take care avoid external force to the brush after removing the cover.
• Remove after 30 minutes of switching "OFF" the ignition to drain out the oil inside the E-CVVT motor plug.
1.Remove the timing chain.(Refer to Engine Mechanical System - "Timing Chain")
2.Remove the center of the E-CVVT motor plug (A) by breakig it.
• Do not tilt the front of engine (timing chain cover side) downward as residual oil may flow out during E-CVVT motor plug removal.
• If oil flows out during E-CVVT motor plug removal, wipe off immediately and block the motor shaft inlet with a clean towel.
3.Fix the camshaft part (A) using the wrench, and then remove the E-CVVT motor (B) after loosening the mounting bolt.
1.Remove the center of the E-CVVT motor plug (A) by breakig it.
• Remove after 30 minutes of switching "OFF" the ignition to drain out the oil inside the E-CVVT motor plug.
• Do not tilt the front of engine (timing chain cover side) downward as residual oil may flow out during E-CVVT motor plug removal.
• If oil flows out during E-CVVT motor plug removal, wipe off immediately and block the motor shaft inlet with a clean towel.
2.Clean the E-CVVT motor plug mounting surface (A) with oil cleaner.
• If the surface is not cleaned, E-CVVT motor plug may be separated due to diminished separation force from residual oil.
• When spraying oil cleaner, block around the motor shaft inlet and rotor gap with a clean towel to prevent inflow of oil from flowing into the rotor gap.
3.When reusing the E-CVVT cover, inspect the below items.
(1)If there is sign of leakage from inside the E-CVVT cover, replace it with a new one.
(2)Check for worn connector brush (A).
Specification : Over 5 mm (0.1969 in.)
(3)Check for damaged oil seal (A) and replace any damaged E-CVVT cover with a new one.
(4)After inspecting E-CVVT, if no problem is found, replace the o-ring (A) with a new one.
4.Install the E-CVVT cover.
(1)Apply engine oil on oil seal lip (A).
• When applying oil, keep the connector brush (A) clean from foreign materials.
(2)Insert SST (09243-C2000) into the E-CVVT motor shaft.
• Correctly mount SST onto the motor shaft.
(3)Slowly push the E-CVVT cover (A) until it is flush with the timing chain cover surface.
• Installing the E-CVVT cover without SST may cause oil leakage inside the E-CVVT motor due to damaged or separated E-CVVT oil seal.
(4)Pre-tighten the bolts in the below sequence, and then remove the SST (09243-C2000).
Tightening torque :1.0 - 2.0 N.m (0.1 - 0.2 kgf.m, 0.7 - 1.4 lb-ft)
(5)Tighten the bolts to the specified torque in the sequence below.
Tightening torque :9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)
5.Install the E-CVVT plug.
(1)By using SST (09243-C2000), insert the plug into the E-CVVT cover hole.
(2)Mount the stopper of SST so that it sits at the end of E-CVVT motor shaft.
6.Inspect the pressed depth of E-CVVT plug.
(1)By using a steel ruler, measure the distance from E-CVVT cover center boss to the end of motor shaft (①).
(2)By using a steel ruler, measure the distance from E-CVVT cover center boss to the end of E-CVVT plug (②).
(3)Calculate the pressed depth (③) of motor plug.If out of specification, reinstall after replacing the E-CVVT plug with a new one.
Pressed depth : ③ = ② - ①Specification : 1.1 - 2.1 mm (0.0433 - 0.0827 in.)
7.Insert the E-CVVT cover plug so that the protrusion reach to E-CVVT cover groove correctly.
• Check how much protrude after installing the E-CVVT plug.
• Be careful that the plug is not inserted inside E-CVVT cover beyond the regulated range.
8.Install the engine support bracket (A).
Tightening torque :39.2 - 44.1 N.m (4.0 - 4.5 kgf.m, 28.9 - 32.5 lb-ft)
(1)Pre-tighten the bolts in the sequence (1→2→3).
(2)Turn the bracket counterclockwise and then tightening the bolt 1.
(3)And then tighten the bolt in the sequence (2→3→4→5→6).
9.Install the engine mounting bracket.(Refer to Engine Mechanical System - "Engine Mounting")
10.Perform the E-CVVT learning value erasing using the diagnosis tool.
• After replacing or remounting the E-CVVT assembly, be sure to reset the learned value from the additional feature menu on the diagnostic device.
• When the learned value for electronic cam position is erased, start learning the cam position while cranking. The engine can start once this is completed.
• Cranking should be repeated for up to 2-3 times to complete learning.
1.Install the E-CVVT motor (A).
Tightening torque :73.5 - 83.4 N.m (7.5 - 8.5 kgf.m, 54.2 - 61.5 lb-ft)
2.Fix the camshaft part (A) using the wrench, and then remove the E-CVVT motor (B) after loosening the mounting bolt.
• Tighten the bolts with the E-CVVT stopper (A) and the camshaft slot (B) in contact.
3.Install the timing chain.(Refer to Engine Mechanical System - "Timing Chain")
4.Perform the E-CVVT learning value erasing using the diagnosis tool.
• After replacing or remounting the E-CVVT assembly, be sure to reset the learned value from the additional feature menu on the diagnostic device.
• When the learned value for electronic cam position is erased, start learning the cam position while cranking. The engine can start once this is completed.
• Cranking should be repeated for up to 2-3 times to complete learning.
• After replacing or remounting the E-CVVT assembly, be sure to reset the learned value from the additional feature menu on the diagnostic device.
• When the learned value for electronic cam position is erased, start learning the cam position while cranking. The engine can start once this is completed.
• Cranking should be repeated for up to 2-3 times to complete learning.
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