Kia Carens. Manual - part 39

Engine Mechanical System

Cylinder Head Assembly - Cylinder Head

Engine Mechanical System

  2001 > 1.8L DOHC >

 

REMOVAL

Valve seal

1. Removal HLA.

2. Set piston to TDC position for removing valve seal by rotate crankshaft.

If timing mark on crankshaft pulley is aligned with timing mark on engine No.1 and No.4 piston are
located on TDC position.

3. Install SST (OK2CA 120 AA0, OK2CA 120 001) on cylinder head.

4. Compress valve spring with SST and allow enough room to remove valve locks.

5. Slow release pressure and remove upper spring seat and valve spring from cylinder head.

6. Remove valve seal with SST (OK993 120 006).

INSTALLATION

Valve seal

1. Install valve seal with SST (OK2CA 120 005I-Intake/OK2CA 120 005E-Exhaust).

Intake and exhaust valve seals are different.
Only exhaust valve seals have four teeth.

Using a hammer will damage valve seals.

2. Install valve spring with narrow spring coil (B) toward cylinder head.

3. Install upper spring seat and compress valve spring with SST(OK2CA 120 AA0, OK2CA 120 001).

4. Install valve locks and release SST from valve spring.

5. Tap end of valve stem lightly two or three times with a plastic hammer to verify that valve locks are fully

seated.

6. Install HLA. (Refer to HLA replacement).

INSPECTION

1. Inspect each valve for following :

A. Damgaged or bent valve stem
B. Rough or damaged face

C. Damaged or unevenly worn stem tip

2. Resurface or replace valve as needed.

Margin thickness
Intake : 0.0472in (1.2mm)
Exhaust : 0.0472in (1.2mm)

3. Measure length of each valve.

Length
Intake : 4.052in (1.2mm)
Exhaust : 0.0472 (1.2mm)

4. Measure diameter of each valve stem.

Diameter
Intake : 0.2350~0.2356in (5.970~5.985mm)
Exhaust : 0.2348~0.2354in (5.965~5.980mm)

5. Measure inside diameter of each valve guide at points shown in figure.

Diameter intake and exhaust valve guide : 0.2367~0.2374in (6.01~6.03mm)

6. Calculate valve stem-to-valve guide clearance.

Subtract outer diameter of valve stem from inside diameter of respective valve guide.

Clearance