Hyundai Elantra CN7: Specifications

Seventh generation (CN7; 2021–2024) / Hyundai Elantra CN7 2021-2024 Workshop Manual / Engine Mechanical System / Specifications

Specifications

Description

Specifications

Limit

General

Type

In-line, DOHC

Number of cylinders

Bore

75.60 mm (2.9764 in)

Stroke

89.0 mm (3.5039 in.)

Total displacement

1,598 cc (97.52 cu.in)

Compression ratio

10.5 ± 0.2 : 1

Firing order

1-3-4-2

Valve timing

Intake valve

Opens

BTDC 93° - ATDC 17.5°

Closes

ABDC 35.5° - ABDC 86°

Exhaust valve

Opens

BBDC 43° - ABDC 7°

Closes

ATDC 0° - ATDC 50°

Cylinder head

Flatness of gasket surface

Less than 0.05 mm (0.0020 in) for total area
Less than 0.02 mm (0.0008 in) for a section of 100 mm (3.9370 in) x 100 mm (3.9370 in)

Camshaft

Cam height

Intake

37.32 mm (1.4693 in)

Exhaust

37.44 mm (1.4740 in)

Journal outer diameter (Intake, Exhaust)

No.1

36.451 - 36.467 mm (1.4351 - 1.4357 in)

No.2, 3, 4, 5

22.956 - 22.972 mm (0.9038 - 0.9044 in)

Camshaft cap oil clearance

No.1

0.040 - 0.071 mm (0.0016 - 0.0028 in)

No.2, 3, 4, 5

0.035 - 0.066 mm (0.0014 - 0.0026 in)

End play

0.10 - 0.19 mm (0.0039 - 0.0075 in)

Valve

Valve length

Intake

112.84 mm (4.4425 in)

Exhaust

122.83 mm (4.8358 in)

Stem outer diameter

Intake

5.465 - 5.480 mm (0.2152 - 0.2157 in)

Exhaust

5.458 - 5.470 mm (0.2149 - 0.2154 in)

Face angle

45.25° - 45.75°

Thickness of valve head (margin)

Intake

0.7 mm (0.0276 in)

Exhaust

0.91 mm (0.0358 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

Inner diameter

5.505 - 5.517 mm (0.2167 - 0.2172 in)

Valve spring

Free length

Intake

52.55 mm (2.0689 in)

Exhaust

50.00 mm (1.9685 in.)

Out of squareness

Less than 1.5°

Cylinder block

Cylinder bore

75.60 - 75.63 mm (2.9764 - 2.9776 in)

Flatness of gasket surface

Less than 0.05 mm (0.0020 in) for total area
Less than 0.02 mm (0.0008 in) for a section of 100 mm (3.9370 in) x 100 mm (3.9370 in)

Piston

Piston outer diameter

75.555 - 75.585 mm (2.9746 - 2.9758 in)

Piston to cylinder clearance

0.035 - 0.055 mm (0.0014 - 0.0022 in)

Ring groove width

No. 1 ring groove

1.230 - 1.250 mm (0.0484 - 0.0492 in)

No. 2 ring groove

1.030 - 1.050 mm (0.0406 - 0.0413 in)

Oil ring groove

2.030 - 2.045 mm (0.0799 - 2.0805 in.)

Piston ring

Piston ring width

No. 1 ring

1.170 - 1.190 mm (0.0461 - 0.0469 in)

No. 2 ring

0.970 - 0.990 mm (0.0382 - 0.0390 in)

Oil ring

1.920 - 1.960 mm (0.0756 - 0.0772 in)

Side clearance of piston to piston ring

No.1 ring

0.040 - 0.080 mm (0.0016 - 0.0031 in)

No.2 ring

0.040 - 0.080 mm (0.0016 - 0.0031 in)

Oil ring

0.050 - 0.105 mm (0.0020 - 0.0041 in)

End gap

No. 1 ring

0.14 - 0.19 mm (0.0055 - 0.0075 in)

No. 2 ring

0.20 - 0.30 mm (0.0079 - 0.0118 in.)

Oil ring

0.10 - 0.40 mm (0.0039 - 0.0157 in)

Piston pin

Piston pin outer diameter

18.997 - 19.000 mm (0.7479 - 0.7480 in)

Piston pin hole inner diameter

19.004 - 19.009 mm (0.7482 - 0.7484 in)

Piston pin hole clearance

0.004 - 0.012 mm (0.0002 - 0.0005 in)

Connecting rod small end hole inner diameter

19.005 - 19.011 mm (0.7482 - 0.7485 in)

Connecting rod small end hole clearance

0.005 - 0.014 mm (0.0002 - 0.0006 in)

Connecting rod

Connecting rod big end inner diameter

45.000 - 45.018 mm (1.7717 - 1.7724 in)

Connecting rod bearing oil clearance

0.037 - 0.055 mm (0.0015 - 0.0022 in)

Side clearance

0.1 - 0.25 mm (0.0039 - 0.0098 in)

Crankshaft

Main bearing oil clearance

No. 1, 2, 3, 4, 5

0.030 - 0.048 mm (0.0012 - 0.0019 in)

End play

0.100 - 0.280 mm (0.0039 - 0.0110 in)

Engine oil

Oil quantity

Total

5.0 L (1.32 U.S.gal., 5.28 U.S.qt., 4.4 lmp.qt.)

When replacing a short engine or a block assembly

Oil pan

4.4 L (1.16 U.S.gal., 4.65 U.S.qt., 3.87 lmp.qt.)

Drain and refill

4.8 L (1.27 U.S.gal., 5.07 U.S.qt., 4.22 lmp.qt.)

Including oil filter

Oil grade

Specification

SAE 0W-20, API SN PLUS (or above grade)

•	Refer to the "Lubrication System" for recommended SAE viscosity number.

Oil pressure (at 1000rpm)

90.22 kPa (0.92 kgf/cm², 13.09 psi) or above

Oil temperature in oil pan : 110±2°C (230± 36°F)

Cooling system

Cooling method

Forced circulation with water pump

Coolant quantity

Approx. 6.8 L (1.79 US.gal., 7.19 US,qt., 5.98 Imp.qt.)

Coolant Radiator cap

Main valve opening pressure

125.3 - 154.7 kPa
(1.28 - 1.58 kgf/cm², 22.44 - 18.17 psi)

Vacuum valve opening pressure

MAX. 6.8 kPa(0.07 kgf/cm², 1.00 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 support bracket to engine mounting insulator fixing nut	88.3 - 107.9	9.0 - 11.0	65.1 - 79.6
Engine mounting support bracket to engine support bracket fixing bolt	58.8 - 73.5	6.0 - 7.5	43.4 - 54.2
Engine mounting support bracket to engine support bracket fixing nut	58.8 - 73.5	6.0 - 7.5	43.4 - 54.2
Transaxle mounting bracket to body fixing bolt	49.0 - 63.7	5.0 - 6.5	36.2 - 47.0
Transaxle mounting bracket to transaxle mounting support bracket fixing bolt	88.3 - 107.9	9.0 - 11.0	65.1 - 79.6
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 nut	107.9 - 127.5	11.0 - 13.0	79.6 - 94.0
Drive belt system
Drive belt tensioner bolt [M8]	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Drive belt tensioner bolt [M10]	34.3 - 41.2	3.5 - 4.2	25.3 - 30.4
Crankshaft damper pulley bolt	[66.7 - 70.6] + [98 - 102°]	[6.8 - 7.2] + [98 - 102°]	[49.2 - 52.1] + [98 - 102°]
Timing chain
Timing chain cover bolt (A,B,C,D)	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Timing chain cover bolt (E,F)	39.2 - 44.1	4.0 - 4.5	28.9 - 32.5
Cam to cam guide	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
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
Oil pump chain tensioner bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Variable force solenoid valve(VFS) bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
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 - 22.6	1.9 - 2.3	13.7 - 16.6
Camshaft bearing cap bolt (M6)	[4.9 - 6.9] + [11.8 - 13.7]	[0.5 - 0.7] + [1.2 - 1.4]	[3.6 - 5.1] + [8.7 - 10.1]
Camshaft bearing cap bolt (M8)	[4.9 - 6.9] + [9.8 - 11.8] + [18.6 - 22.6]	[0.5 - 0.7] + [1.0 - 1.2] + [1.9 - 2.3]	[3.6 - 5.1] + [7.2 - 8.7] + [13.7 - 16.6]
Camshaft front bearing cap bolt (M8)	[4.9 - 6.9] + [9.8 - 11.8] + [18.6 - 22.6]	[0.5 - 0.7] + [1.0 - 1.2] + [1.9 - 2.3]	[3.6 - 5.1] + [7.2 - 8.7] + [13.7 - 16.6]
Cylinder head bolt	[29.4] + [90°] + [90°]	[3.0] + [90°] + [90°]	[21.7] + [90°] + [90°]
Intake OCV (Oil control valve) & center bolt	[22.6 - 26.5] + [32 - 36°]	[2.3 - 2.7] + [32 - 36°]	[16.6 - 19.5] + [32 - 36°]
Exhaust OCV (Oil control valve) & center bolt	[22.6 - 26.5] + [32 - 36°]	[2.3 - 2.7] + [32 - 36°]	[16.6 - 19.5] + [32 - 36°]
Cylinder block
Drive plate bolt	71.6 - 75.5	7.3 - 7.7	52.8 - 55.7
Fly wheel bolt	71.6 - 75.5	7.3 - 7.7	52.8 - 55.7
Connecting rod bearing cap bolt	[17.7 - 21.6] + [68 - 72°]	[1.8 - 2.2] + [68 - 72°]	[13.0 - 15.9] + [68 - 72°]
Crankshaft position sensor (CPS) wheel bolt	12.7 - 13.7	1.3 - 1.4	9.4 - 10.1
Crankshaft bearing cap bolt	[27.5 - 31.4] + [118 - 122°]	[2.8 - 3.2] + [118 - 122°]	[20.3 - 23.1] + [118 - 122°]
Piston cooling jet bolt	8.8 - 12.7	0.9 - 1.3	6.5 - 9.4
Crank lower case	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Cooling system
Water pump pulley bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Water pump bolt	11.8 - 13.7	1.2 - 1.4	8.7 - 10.1
Heater pipe (A) bolt & nut	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Heater pipe (B) M8 bolt	14.7 - 21.6	1.5 - 2.2	10.8 - 15.9
Water inlet fitting nut	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Integrated thermal management module (ITM) bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Lubrication system
Oil filter	34.3	3.5	25.3
Oil pan bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Oil pan drain plug bolt	34.3 - 44.1	3.5 - 4.5	25.3 - 32.5
Oil pump bolt	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Oil filter bolt	22.6 - 27.5	2.3 - 2.8	16.6 - 20.3
Oil cooler bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Intake and exhaust system
Intake manifold bolt & nut	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Warmup catalytic converter upper stay bracket	39.2 - 44.1	4.0 - 4.5	28.9 - 32.5
Warmup catalytic converter lower stay bracket	49.0 - 53.9	5.0 - 5.5	36.2 - 39.8
Warmup catalytic converter stay nut	35.3 - 41.2	3.6 - 4.2	26.0 - 30.4
Intercooler inlet pipe bolt	18.6 - 23.5	1.9 - 2.4	13.7 - 17.4
Turbo charger coolant outlet hose eyebolt	34.3 - 39.2	3.5 - 4.0	25.3 - 28.9
Turbo charger coolant inlet hose eyebolt	34.3 - 39.2	3.5 - 4.0	25.3 - 28.9
Oil feed pipe eyebolt	16.7 - 21.6	1.7 - 2.2	12.3 - 15.9
Oil drain pipe	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Exhaust manifold heat protector A bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Exhaust manifold heat protector B bolt	9.8 - 11.8	1.0 - 1.2	7.2 - 8.7
Turbocharger nut	49.0 - 53.9	5.0 - 5.5	36.2 - 39.8
Muffler nut	39.2 - 58.8	4.0 - 6.0	28.9 - 43.4

Engine Mechanical System

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Repair procedures

Compession Pressure Inspection • If the there is lack of power, excessive oil consumption or poor fuel economy, measure the compression pressure.1.Start the ...