Reassembly

FA20 ENGINE MECHANICAL: CYLINDER HEAD: REASSEMBLY; 2013 MY FR-S [03/2012 -]

1. INSTALL INTAKE VALVE STEM OIL SEAL

(a) Apply engine oil to new valve stem oil seals.









NOTICE:
* Pay close attention to the colors when installing the oil seals.
* Installing the intake oil seal into the exhaust side or installing the exhaust oil seal to the intake side may cause installation problems later.

(b) Using SST, push in the oil seals by hand.









SST : 09201-41020

NOTICE:
* Place a cloth, etc. to avoid scratching the mating surface of the cylinder head during servicing.
* Do not tap SST with a plastic hummer to install the oil seals as it may damage the oil seals. Push in the oil seals by hand with SST.
* Do not install the oil seals at an angle.

2. INSTALL EXHAUST VALVE STEM OIL SEAL

(a) Using SST, push in the oil seals by hand.

SST : 09201-41020

HINT
Use the same procedure as for the intake oil seals.

3. INSTALL INTAKE VALVE

NOTICE:
Place a cloth to avoid scratching the mating surface of the cylinder head during servicing.

(a) Set the valve spring seat, valve spring and retainer onto the cylinder head.

HINT
Install the valve spring to the cylinder head with the narrow pitch end facing the valve spring seat.

(b) Apply engine oil to the valve stem and insert the valve into the valve guide bush.

NOTICE:
When inserting the valve into the valve guide bush, use special care not to damage the oil seal lip.

(c) Apply engine oil to the valve spring retainer locks.

(d) Using SST, compress the valve spring and install the valve spring retainer locks.





SST : 09202-70020

09202-00010

09202-01010

09202-01020

(e) Using a plastic hammer, lightly tap the valve stem tip to ensure a proper fit.





NOTICE:
Be careful not to tap the retainer.

4. INSTALL EXHAUST VALVE

NOTICE:
Place a cloth to avoid scratching the mating surface of the cylinder head during servicing.

(a) Set the valve spring seat, valve spring and retainer onto the cylinder head.

HINT
Install the valve spring to the cylinder head with the narrow pitch end facing the valve spring seat.

(b) Apply engine oil to the valve stem and insert the valve into the valve guide bush.

NOTICE:
When inserting the valve into the valve guide bush, use special care not to damage the oil seal lip.

(c) Apply engine oil to the valve spring retainer locks.

(d) Using SST, compress the valve spring and install the valve spring retainer locks.





SST : 09202-70020

09202-00010

09202-01010

09202-01020

(e) Using a plastic hammer, lightly tap the valve stem tip to ensure a proper fit.





NOTICE:
Be careful not to tap the retainer.

5. INSTALL STUD BOLT

(a) Install the 6 stud bolts to the cylinder heads.









Torque : 18 Nm (184 kgf-cm, 13 ft-lbf)

6. INSTALL CHAIN COVER MOUNT BOLT

(a) Install the chain cover mount bolt to the cylinder head sub-assembly LH.





Torque : 6.4 Nm (65 kgf-cm, 57 in-lbf)