Kia Optima Hybrid: Cylinder Head Assembly / Cylinder Head Components and Components Location

Components

1. Camshaft bearing cap
2. Camshaft front bearing cap
3. Exhaust camshaft
4. Intake camshaft
5. Exhaust CVVT assembly
6. Intake CVVT assembly
7. Exhaust camshaft upper bearing
8. Exhaust camshaft lower bearing
9. MLA (Mechanical lash adjuster)
10. Retainer lock
11. Retainer
12. Valve spring
13. Valve stem seal
14. Valve
15. Cylinder head
16. Intake OCV (Oil control valve)
17. Exhaust OCV (Oil control valve)
18. Cylinder head gasket

CVVT & Camshaft Repair procedures

Removal 1. Remove the cylinder head cover. 2. Set No.1 cylinder to TDC/compression. a. Turn the crankshaft pulley and align its groove with the timing mark "T" of the lower timing chain cover. b. Check ...

Cylinder Head Repair procedures

Removal     • Use fender covers to avoid damaging painted surfaces. • To avoid damaging the cylinder head, wait until the engine coolant temperature drops below normal temperature before ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: NVLD(Natural Vacuum Leakage Detection) Description and Operation


Description NVLD(Natural Vacuum Leakage Detection) is located between the canister and the fuel tank air filter. NVLD is to detect leaks equivalent to a 0.5 mm hole in the fuel tank, canister and hoses. When the engine has been running, the temperature of the fuel in the fuel tank is raised slightly. ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Specifications


Specification Ignition System ItemsSpecificationIgnition coilPrimary resistance0.62 ± 10 % (?)Secondary resistance7.0 ± 15 % (k?)Spark plugsTypeFXU16HR11Gap1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.) Charging System ItemsSpecificationAuxiliary 12V batteryType54-28GRCold cranking amperage [at -18°C(-0.4°F)]600AReserve ...

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