Hyundai Tucson (NX4) 2022-2025 Service Manual / Engine Mechanical System / Specifications

Hyundai Tucson: Engine Mechanical System / Specifications

- Specifications

Description

Specifications

Limit

General

Type

In-line, DOHC

Number of cylinders

Bore

88.5 mm (3.484 in.)

Stroke

101.5 mm (3.996 in.)

Total displacement

2497 cc (152.38 cu.in.)

Compression ratio

13 : 1

Firing order

1-3-4-2

Valve timing

Intake valve

Opens
(ATDC/BTDC)

IVO: ATDC 23° - BTDC 49°

Closes (ABDC)

IVC: ABDC 36° - ABDC 108°

Exhaust valve

Opens (BBDC)

EVO: BBDC 73° - 23°

Closes (BTDC)

EVC: BTDC 2° - ATDC 48°

Camshaft

Cam height

Intake

39.50 mm (1.5551in)

Exhaust

37.60 mm (1.4803in)

Journal outer diameter

Intake

NO.1: 35.956 - 35.970 mm (1.41559 - 1.41614 in)
NO.2,3,4,5: 23.954 - 23.97 mm(0.94307 - 0.94370 in.)

Exhaust

Bearing oil clearance

Intake

NO.1: 0.037 - 0.065 mm (0.00146 - 0.00256 in)
NO.2,3,4,5: 0.037 - 0.067 mm (0.00146 - 0.00264 in)

Exhaust

End play

0.09 - 0.23mm (0.00354 - 0.00091 in)

Valve

Valve length

Intake

108.378 mm (4.2668 in.)

108.228 mm (4.2609 in)

Exhaust

119.875 mm (4.7195 in.)

119.725 mm (4.7136 in)

Stem outer diameter

Intake

5.460 - 5.475 mm (0.2150 - 0.2156 in.)

Exhaust

5.453 - 5.465 mm (0.2147 - 0.2152 in.)

Face angle

45.25° - 45.75°

Thickness of valve head (margin)

Intake

0.8 mm (0.315 in.)

Exhaust

0.8 mm (0.315 in.)

Valve stem to valve guide clearance

Intake

0.025 - 0.052 mm (0.0010 - 0.0020 in.)

Exhaust

0.035 - 0.059 mm (0.0014 - 0.0023 in.)

Valve guide

Length

Intake

43.8 - 44.2 mm (1.7244 - 1.7401 in.)

Exhaust

43.8 - 44.2 mm (1.7244 - 1.7401 in.)

Inner diameter

Intake

5.500 - 5.512 mm (0.21654 - 0.21701 in.)

Exhaust

5.500 - 5.512 mm (0.21654 - 0.21701 in.)

Valve seat

Width of seat contact

Intake

1.16 - 1.46 mm (0.0457 - 0.0575 in.)

Exhaust

1.35 - 1.65 mm (0.0531 - 0.0649 in.)

Seat angle

Intake

44.75° - 45.10°

Exhaust

44.75° - 45.10°

Valve spring

Free length

52.51 mm (2.0673 in.)

Load

20.4 ± 1.0kg/39.0 mm (41.88 ± 1.32lb/1.3779in.)
43.2 ± 2.1kg/29.0 mm (87.74 ± 2.64lb/1.0236 in.)

Out of squareness

Less than 1.5° (MAX)

Cylinder head

Flatness of gasket surface

Less than 0.05 mm (0.0019 in.) for total area
Less than 0.02 mm (0.0007 in.) for a section of
100 mm (3.9370 in.)×100 mm (3.9370 in.)

Flatness of manifold mounting surface

Intake

Less than 0.10 mm (0.0039 in.)

Exhaust

Less than 0.10 mm (0.0039 in.)

Piston

Piston outer diameter

88.450 - 88.480 mm (3.48228 - 3.48346 in.)

Piston to cylinder clearance

0.040 - 0.060 mm (0.00157 - 0.00236 in.)

Ring groove width

No. 1 ring

1.235 - 1.250 mm (0.04862 - 0.04921 in.)

No. 2 ring

1.230 - 1.250 mm (0.04843 - 0.04921 in.)

Oil ring

2.010 - 2.025 mm (0.07913 - 0.07972 in.)

Piston ring

Side clearance

No. 1 ring

0.045 - 0.080 mm (0.00177 - 0.00315 in.)

No. 2 ring

0.040 - 0.080 mm (0.00157 - 0.00315 in.)

Oil ring

0.040 - 0.115 mm (0.0015 - 0.0045 in.)

End gap

No. 1 ring

0.14 - 0.19 mm (0.0055 - 0.0075 in.)

No. 2 ring

0.30 - 0.40 mm (0.0118 - 0.0157 in.)

Oil ring

0.10 - 0.40 mm (0.0039 - 0.0157 in.)

Piston pin

Piston pin outer diameter

19.997 - 20.000mm (0.7873 - 0.7874 in.)

Piston pin hole inner diameter

20.003 - 20.007 mm (0.7875 - 0.7877 in.)

Piston pin hole clearance

0.003 - 0.010 mm (0.00012 - 0.00039 in.)

Connecting rod small end hole inner diameter

20.005 - 20.011 mm (0.78759 - 0.78783 in.)

Piston pin-to-connecting rod bushing oil clearance

0.005 - 0.014 mm (0.00020 - 0.00055 in.)

Connecting rod

Connecting rod big end inner diameter

51.000 - 51.018 mm (2.00787 - 2.00858 in.)

Connecting rod bearing oil clearance

0.032 - 0.050 mm (0.0013 - 0.0020 in.)

Side clearance

0.10 - 0.25 mm (0.0039 - 0.0098 in.)

Crankshaft

Main journal outer diameter

51.942 - 51.960 mm (2.04496 - 2.04567 in.)

Pin journal outer diameter

47.954 - 47.972 mm (1.88795 - 1.88866 in.)

Main bearing oil clearance

NO 1,2,4,5 : 0.022 - 0.040 mm (0.00086 - 0.00157 in.)
NO3 : 0.028 - 0.046 mm (0.00110 - 0.00181 in.)

End play

0.100 - 0.280 mm (0.0039 - 1.0110 in.)

Cylinder block

Cylinder bore

88.50 - 88.53 mm (3.4842 - 3.4854 in.)

Flatness of gasket surface

Less than 0.05 mm (0.0019 in.) for total area
Less than 0.02 mm (0.0007 in.) for a section of
100 mm (3.9370 in.)×100 mm (3.9370 in.)

Engine oil

Oil quantity

Total

6.8L (1.80U.S.gal., 7.19U.S.qt., 5.98lmp.qt.)

When replacing a short engine or block assembly

Oil pan

5.5L (1.45U.S.gal., 5.81U.S.qt., 4.83lmp.qt.)

Drain and refill

5.8L (1.53U.S.gal., 6.12U.S.qt., 5.10lmp.qt.)

Including oil filter

Oil grade

Classification

API Latest (SN PLUS/SP) or ILSAC LATEST GF-6, 0W-20

•	If oil of acceptable viscosity is not available, refer to "Lubrication System" for recommended SAE viscosity number

Refer to the "Lubrication System".

Oil pressure (at 1,000rpm)
90.22 kPa (0.92 kgf/cm², 13.09 psi) or above
Oil temperature (oil pan) : 110±2°C (230±35.6℉)

Cooling system

Cooling method
Forced circulation with water pump
　

Coolant quantity
Approx. 9.5 L (2.51 U.S.gal., 10.04 U.S.qt., 8.35 lmp.qt.)
　

Reservoir tank cap
High pressure valve opening pressure
122.6 - 152.0 kPa
(1.25 - 1.55 kgf/cm², 17.78 - 22.05 psi.)
　

Vacuum valve opening pressure
Less then 6.8 kPa (Lower 0.07 kgf/cm, 0.9863 psi)
　

Tightening Torques

Item	N.m	kgf.m	lb-ft
Engine mounting
Engine mounting bracket to body fixing bolt	63.7 - 83.4	6.5 - 8.5	47.0 - 61.5
Engine mounting bracket to body fixing nut	63.7 - 83.4	6.5 - 8.5	47.0 - 61.5
Engine mounting bracket to engine mounting support bracket fixing nut	88.3 - 107.9	9.0 - 11.0	65.1 - 79.6
Engine mounting support bracket to engine support bracket fixing bolt	88.3 - 107.9	9.0 - 11.0	65.1 - 79.6
Engine mounting support bracket to engine support bracket fixing nut	88.3 - 107.9	9.0 - 11.0	65.1 - 79.6
Transaxle mounting bracket to body fixing bolt	63.7 - 83.4	6.5 - 8.5	47.0 - 61.5
Transaxle mounting bracket to body fixing nut	63.7 - 83.4	6.5 - 8.5	47.0 - 61.5
Transaxle mounting bracket to transaxle mounting support bracket fixing bolt	107.9 - 127.5	11.0 - 13.0	79.6 - 94.0
Roll rod bracket to sub frame fixing bolt	49.0 - 63.7	5.0 - 6.5	36.2 - 47.0
Roll rod bracket to roll rod support bracket fixing bolt & nut	107.9 - 127.5	11.0 - 13.0	79.6 - 94.0
Drive Belt System
Drive belt tensioner bracket fixing bolt	39.2 - 44.1	4.0 - 4.5	28.9 - 32.5
Drive belt tensioner fixing bolt	53.9 - 63.7	5.5 - 6.5	39.7 - 47.0
Crankshaft damper pulley fixing bolt	[114.7 - 120.6] + [68 - 72°]	[11.7 - 12.3] + [68 - 72°]	[84.6 - 88.9] + [68 - 72°]
Drive belt tensioner pulley fixing bolt	27.4 - 33.3	2.8 - 3.4	20.2 - 24.5
Timing system
Timing chain cover bolt	18.6 - 22.5	1.9 - 2.3	13.7 - 16.6
Engine support bracket bolt	39.2 - 44.1	4.0 - 4.5	28.9 - 32.5
Timing chain tensioner bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Timing chain tensioner arm bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Timing chain guide bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Timing chain cam to cam guide bolt	9.8 - 11.7	1.0 - 1.2	7.23 - 8.67
E-CVVT cover bolt	0.9 - 1.9 [9.8 - 11.7]	[0.1 - 0.2] + [1.0 - 1.2]	0.72 -1.44 + [1.0 - 1.2]
VFS bolt	9.8 - 11.7	1.0 - 1.2	7.23 - 8.67
Cylinder head
Cylinder head cover bolt	[3.9 - 5.9] + [7.8 - 9.8]	[0.4 - 0.6] + [0.8-1.0]	[2.9 - 4.3] + [5.8-7.2]
CAM carrier bolt	18.6 - 22.5	1.9 - 2.3	13.74 - 16.63
High pressure fuel pump bolt	12.7 - 14.7	1.3 - 1.5	9.4 - 10.8
High pressure fuel pump bracket bolt	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Injector & rail assembly bolt	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Intake E-CVVT bolt	73.5 - 83.3	7.5 - 8.5	54.24 - 61.48
Exhaust CVVT bolt	[22.5 - 26.4] + [28 - 32°]	[2.3 - 2.7] + [28 - 32°]	[16.63 - 19.52] + [28 - 32°]
Camshaft bearing cap bolt (M6) (LH/RH)	4.9 - 7.8 + [11.7 - 13.7]	[0.5 - 0.8] + [1.2 - 1.4]	3.61 - 5.78 + [8.67 - 10.12]
Camshaft bearing cap bolt (M8)	[9.8 - 11.7] + [18.6 - 22.5]	[1.0 - 1.2] + [1.9 - 2.3]	[7.23 - 8.67] + [13.74 - 16.63]
Cylinder head bolt	[32.3 - 36.2] + [90 - 94°] + [110 - 114°]	[3.3 - 3.7] + [90 - 94°] + [110 - 114°]	[23.86 - 26.76] + [90 - 94°] + [110 - 114°]
Engine hanger bolt (Front/Rear)	18.6 - 23.5	1.9 - 2.4	13.74 - 17.35
Cylinder block
Drive plate bolt	127.4 - 137.2	13.0 - 14.0	94.02 - 101.26
Crankshaft position sensor wheel bolt	26.4 - 27.4	2.7 - 2.8	19.5 - 20.2
Connecting rod bearing cap bolt	[17.7-21.6] + [88-92°]	[1.8-2.2] + [88-92°]	[13.0-15.9] + [88-92°]
Main bearing cap bolt	[27.5 - 31.4] + [120° - 125°]	[2.8 - 3.2] + [120° - 125°]	[20.3 - 23.1] + [120° - 125°]
Piston cooling oil jet bolt	8.8 - 10.7	0.9 - 1.1	6.90 - 7.95
Crankshaft position sensor bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Knock sensor	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Crank lower case mounting bolt	29.4 - 33.3	3.0 - 3.4	21.7 - 24.6
Lubrication system
Oil drain plug	34.3 - 44.1	3.5 - 4.5	25.31 - 32.54
Oil filter drain bolt	4.0 - 5.0	0.4 - 0.5	2.9 - 3.6
Oil cooler mounting bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Oil filter cap	25.0 - 30.0	2.6 - 3.1	18.7 - 22.4
Oil filter & cooler mounting bolt	19.6 - 23.5	2.0 - 2.4	14.46 - 17.35
Oil cooler mounting bolt	9.8 - 11.8	1.0 - 1.2	7.23 - 8.67
Oil level gauge assembly bolt	7.8 - 11.8	0.8 - 1.2	5.78 - 8.67
A/C compressor bracket bolt	19.6 - 23.5	2.0 - 2.4	14.46 - 17.35
Oil pan bolt (M6)	9.8 - 11.8	1.0 - 1.2	7.23 - 8.67
Oil pan bolt (M9)	29.4 - 33.3	3.0 - 3.4	21.7 - 24.6
BSA chain tensioner arm bolt	9.8 - 11.7	1.0 - 1.2	7.23 - 8.67
BSA chain guide bolt	9.8 - 11.7	1.0 - 1.2	7.23 - 8.67
BSA chain tensioner bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Balance shaft assembly bolt	[17.6 - 21.5] + [58 - 62°]	[1.8 - 2.2] + [58 - 62°]	[13.01 - 15.9] + [58 - 62°]
Oil pump bolt	19.6 - 23.5	2.0 - 2.4	14.46 - 17.35
Oil pump sprocket bolt	19.6 - 26.4	2.0 - 2.7	14.46 - 19.52
Oil pressure switch	35.3 - 38.2	3.6 - 3.9	26.03 - 28.20
Cooling system
Water pump pulley bolt	7.8 - 9.8	0.8 - 1.0	5.8 - 7.2
Water pump bolt (M6)	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Water pump housing bolt (M8)	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Water inlet pipe bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Intake and exhaust system
Breather hose and pipe bolt	9.8 - 11.7	1.0 - 1.2	7.23 - 8.67
Air intake hose clamp bolt	2.9 - 4.9	0.3 - 0.5	2.16 - 3.61
Air cleaner assembly bolt	7.8 - 9.8	0.8 - 1.0	5.78 - 7.23
Intake manifold stay bolt	18.6 - 23.5	1.9 - 2.4	13.74 - 17.35
Intake manifold bolt	18.6 - 23.5	1.9 - 2.4	13.74 - 17.35
Intake manifold nut	18.6 - 23.5	1.9 - 2.4	13.74 - 17.35
EGR cooler bolt	18.6 - 23.5	1.9 - 2.4	13.74 - 17.35
EGR Cooler pipe A nut	18.6 - 23.5	1.9 - 2.4	13.74 - 17.35
EGR cooler pipe A bolt	29.4 - 34.3	3.0 - 3.5	21.69 - 25.31
EGR cooler pipe C bolt (M8)	18.6 - 23.5	1.9 - 2.4	13.74 - 17.35
EGR cooler pipe C bolt (M6)	7.9 - 9.8	0.8 - 1.0	5.78 - 7.23
EGR cooler pipe C nut	18.6 - 23.5	1.9 - 2.4	13.74 - 17.35
Exhaust manifold stay bolt (M8)	18.6 - 27.4	1.9 - 2.8	13.74 - 17.35
Exhaust manifold stay bolt (M10)	51.9 - 57.8	5.3 - 5.9	38.33 - 42.67
Exhaust manifold nut	49.0 - 53.9	5.0 - 5.5	36.16 - 39.78
Catalytic converter / muffler nut	39.2 - 58.8	4.0 - 6.0	28.93 - 43.39

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