Hyundai Venue (QX): Cylinder Head Assembly / Repair procedures

Hyundai Venue (QX) (2020-2025) Service Manual / Engine Mechanical System / Cylinder Head Assembly / Repair procedures

Adjustment
Valve Clearance Inspection and Adjustment
Hyundai Venue. Repair procedures   
•
Inspect and adjust the valve clearance when the engine is cold (Engine coolant temperature : 20°C) and cylinder head is installed on the cylinder block.
1.
Remove the cylinder head cover.
(Refer to Cylinder Head Assembly - "Cylinder Head Cover")
2.
Set No.1 cylinder to TDC/compression.
(1)
Turn the crankshaft pulley and align its groove with the timing mark of the timing chain cover.

Hyundai Venue. Repair procedures
(2)
Check that the marks of the camshaft timing sprockets are in straight line on the cylinder head surface as shown in the illustration. If not, turn the crankshaft one revolution (360°).

Hyundai Venue. Repair procedures
3.
Inspect the valve clearance.
(1)
Check only the intake valves of the 1st and 2nd cylinders and exhaust valves of the 1st and 3rd cylinders for their clearance.
•
Using a thickness gauge, measure the clearance between the tappet and the base circle of camshaft.

Hyundai Venue. Repair procedures
•
Record the out-of-specification valve clearance measurements. They will be used later to determine the required tappet for adjusting.
Valve clearance specification (Engine coolant temperature : 20°C [68°F])
Limit
Intake : 0.17 - 0.23 mm (0.0067 - 0.0091 in.)
Exhaust : 0.22 - 0.28 mm (0.0087 - 0.0110 in.)
(2)
Turn the crankshaft pulley one revolution (clockwise 360°) and align its groove with timing mark of the timing chain cover.
(3)
Check the intake valves of the 3rd and 4th cylinders and exhaust valves of the 2nd and 4th cylinders for their clearance.

Hyundai Venue. Repair procedures
4.
Adjust the intake and exhaust valve clearance.
(1)
Set the No.1 cylinder to the TDC/compression position.
(2)
Put paint marks on the timing chain links (2 places) that meet with the timing marks of the intake, exhaust camshaft sprockets.
(3)
Remove the exhaust camshaft sprocket bolt.
(4)
Remove the service hole bolt of the timing chain cover.
Hyundai Venue. Repair procedures   
•
The bolt must not be reused once it has been assembled.
(5)
Insert a thin rod in the service hole of the timing chain cover and release the ratchet.
(6)
Remove the exhaust camshaft sprocket.
(7)
Remove the OCV valve adapter (A).

Hyundai Venue. Repair procedures
(8)
Remove the camshaft bearing caps (A) with the order below.

Hyundai Venue. Repair procedures
(9)
Remove the exhaust camshaft.
(10)
Remove the intake camshaft and CVVT module.
Hyundai Venue. Repair procedures   
•
When disconnecting the timing chain from the camshaft timing sprocket, hold the timing chain.
(11)
Tie a timing chain with a string.
Hyundai Venue. Repair procedures   
•
Be careful not to drop anything inside timing chain cover.
(12)
Measure the thickness of the removed tappet using a micrometer.

Hyundai Venue. Repair procedures
(13)
Calculate the thickness of a new tappet so that the valve clearance comes within the specificified value.
Valve clearance (Engine coolant temperature : 20°C)
T : Thickness of removed tappet
A : Measured valve clearance
N : Thickness of new tappet
Intake : N = T + [A - 0.20 mm (0.0079 in.)]
Exhaust : N = T + [A - 0.25 mm (0.0098 in.)]
(14)
Select a new tappet with a thickness as close as possible to the caculated value.
Hyundai Venue. Repair procedures   
•
Shims are available in 41size increments of 0.015mm (0.0006in.) from 3.00mm (0.118in.) to 3.600mm (0.1417in.)
(15)
Place a new tappet on the cylinder head.
(16)
Hold the timing chain, and place the intake camshaft and CVVT module assembly.
(17)
Align the matchmarks on the timing chain and camshaft timing sprocket.
(18)
Install the exhaust camshaft.
(19)
Install the exhaust camshaft sprocket.
Tightening torque :
63.7 - 73.5N.m (6.5 - 7.5kgf.m, 47.0 - 54.2lb-ft)
(20)
Install the camshaft bearing caps with the order below.
Tightening torque :
M6 bolts :
11.8 - 13.7N.m (1.2 - 1.4kgf.m, 8.7 - 10.1lb-ft)
M8 bolts :
18.6 - 22.6N.m (1.9 - 2.3kgf.m, 13.7 - 16.6lb-ft)

Hyundai Venue. Repair procedures
(21)
Install the service hole bolt.
Tightening torque :
11.8 - 14.7N.m (1.2 - 1.5kgf.m, 8.7 - 10.8lb-ft)
(22)
Turn the crankshaft two turns in the operating direction(clockwise) and realign crankshaft sprocket and camshaft sprocket timing marks.
(23)
Recheck the valve clearance.
Valve clearance (Engine coolant temperature : 20°C)
[Specification]
Intake : 0.17 - 0.23mm (0.0067 - 0.0091in.)
Exhaust : 0.22 - 0.28mm (0.0087 - 0.0110in.)

    Components 1. Cylinder head cover 2. Cylinder head cover gasket 3. Cylinder head assembly 4. Cylinder head gasket 5.

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