CVVT & Camshaft: Inspection: Camshaft: Notes
WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
- Measure the height of the cam lobe using a micrometer and check the surface of the cam lob for wear and tear. If necessary, replace the camshaft.
Cam height
Intake: 44.15 mm (1.738 in.)
Exhaust: 42.90 mm (1.689 in.)
- Inspect the cam lobe surface for abnormal wear and damage and replace if necessary.
- Check the surface of the camshaft journal for wear and tear. If the camshaft journal is excessively damaged, replace the camshaft.
- Inspect the camshaft journal clearance.
- Clean the camshaft journals and bearing caps.
- Place the camshafts in the cylinder head.
- Lay a strip of plastigage across each of the camshaft journals.
- Install the bearing caps and tighten the bolts to the specified torque.
Tightening Torque
1st step
M6 bolt: 5.9 N.m (0.6 kgf.m, 4.3 lb-ft)
M8 bolt: 9.8 N.m (1.0 kgf.m, 7.2 lb-ft)
2nd step
M6 bolts:
11.8 - 12.7 N.m (1.2 - 1.3 kgf.m, 8.7 - 9.4 lb-ft)
M8 bolts:
18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb-ft)
NOTE:- Do not turn the camshaft.
- Remove the bearing caps.
- Measure the plastigage at the widest point. If the clearance is greater than the specification, replace the camshaft. If necessary, replace the bearing caps and the cylinder head as a set.
Camshaft bearing cap oil clearance
Standard:
0.027 - 0.058 mm (0.0011 - 0.0023 in.)
Limit: 0.1 mm (0.0039 in.)
- Inspect the camshaft end play.
- Inspect the camshaft end play.
- Measure the end play while moving the camshaft back and forth using a dial gauge. If the end play is greater than the specification, replace the camshaft. If necessary, replace the bearing caps and the cylinder head as a set.
Camshaft end play
Standard: 0.1 - 0.2 mm (0.0039 - 0.0079 in.)
If the oil clearance is greater than maximum, replace the camshaft. If necessary, replace cylinder head.
- Remove the camshafts.