| VELOSTER(FS) >2013 > G 1.6 T-GDI > Engine Mechanical System > Cylinder Head Assembly > Camshaft>Repair procedures |

Removal
1. | Remove the cylinder head cover. (Refer to Cylinder Head Assembly - "Cylinder Head Cover")
2. | Remove the timing chain cover. (Refer to Timing System - "Timing Chain Cover")
3. | Remove the timing chain. (Refer to Timing System - "Timing Chain")
4. | Remove the intake CVVT assembly and exhaust CVVT assembly. (Refer to Cylinder Head Assembly - "CVVT Assembly")
5. | Remove the exhaust OCV (Oil control valve) adaptor (A).
6. | Remove the camshaft bearing caps (A) with the order below.
Inspection
1. | Inspect the cam height. Using a micrometer, measure the cam height.
Cam height Intake : 44.15mm (1.7382in) Exhaust : 42.90mm (1.6889in)
If the cam lobe height is less than specified, replace the camshaft.
2. | Check the cranshaft journal for wear. If the journal is worn excessively, replace the camshaft.
3. | Inspect the camshaft journal clearance.
(1) | Clean the bearing caps and camshaft journals.
(2) | Place the camshafts on the cylinder head.
(3) | Lay a strip of plastigage across each of the camshaft journal.
(4) | Install the bearing caps and tighten the bolts with specified torque.
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)
Do not turn the camshaft.
(5) | Remove the bearing caps.
(6) | Measure the plastigage at its widest point.
Bearing oil clearance Standard : 0.027 ~ 0.058mm (0.0011 ~ 0.0023in) Limit : 0.1mm ( 0.0039in)
If the oil clearance is greater than specified, replace the camshaft. If necessary, replace the bearing caps and cylinder head as a set.
4. | Inspect the camshaft end play.
(1) | Install the camshafts.
(2) | Using a dial indicator, measure the end play while moving the camshaft back and forth.
Camshaft end play Standard : 0.1 ~ 0.2mm (0.0039 ~ 0.0079in)
If the end play is greater than specified, replace the camshaft. If necessary, replace the bearing caps and cylinder head as a set.
(3) | Remove the camshafts.
Installation
1. | Apply a light coat of engine oil on camshaft journals.
2. | Install the camshaft bearing caps(A) 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)
3. | Install the exhaust OCV (Oil control valve) adaptor (A).
Tightening torque : 9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft)
4. | Install the intake CVVT assembly and exhaust CVVT assembly. (Refer to Cylinder Head Assembly - "CVVT Assembly")
5. | Install the timing chain. (Refer to Timing System - "Timing Chain")
6. | Install the timing chain cover. (Refer to Timing System - "Timing Chain Cover")
7. | Install the cylinder head cover. (Refer to Cylinder Head Assembly - "Cylinder Head Cover")