Installation

FA20 ENGINE MECHANICAL: TIMING CHAIN: INSTALLATION; 2013 MY FR-S [03/2012 -]

1. INSTALL CHAIN SUB-ASSEMBLY (for Bank 2)

NOTICE:
Do not allow any foreign matter to adhere onto or to enter into the component parts during installation.

HINT
Apply engine oil to all component parts of the chain sub-assembly.

(a) Temporarily install the pulley bolt to the crankshaft.

(b) Move the link plate in the direction of the arrow in the illustration to press in the plunger.

(c) Insert an approximately 1 mm (0.039 in.) wire or the like into the chain tensioner through the stopper pin hole, and hold the plunger.

HINT
If the stopper pin hole on the link plate and the stopper pin hole on the chain tensioner are not aligned, check that the first notch of the plunger rack is engaged with the stopper tooth. If not engaged, retract the plunger a little so that the first notch of the plunger rack is engaged with the stopper tooth.

(d) Align the alignment mark on the camshaft timing intake gear assembly LH and camshaft timing exhaust gear assembly LH with the position shown in the illustration.

NOTICE:
To avoid damaging the valves, do not turn the camshaft timing intake gear assemblies more than the zero-lift range (the range where camshaft timing intake gear assembles can be turned lightly by hand).

(e) Align the timing chain mark plate (blue) with the alignment mark of the crankshaft timing gear or sprocket.

(f) Align the timing chain mark plate (pink) with the timing mark on the camshaft timing intake gear assembly LH.

(g) Align the timing chain mark plate (pink) with the timing mark on the camshaft timing exhaust gear assembly LH.

(h) Apply engine oil to the bolt.

(i) Using a 5 mm hexagon socket wrench, install the No. 1 chain vibration damper with the bolt.

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

(j) Install a new O-ring to the cylinder block (bank 2).

(k) Install the chain tensioner slipper.

(l) Install the No. 2 chain tensioner assembly with the 2 bolts.

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

(m) Check that the chain is correctly installed.

(1) Timing chain mark plate (blue) is aligned with the alignment mark on the crankshaft timing gear or sprocket.

(2) Timing chain mark plate (pink) is aligned with the timing mark on the camshaft timing intake gear assembly LH.

(3) Timing chain mark plate (pink) is aligned with the timing mark on the camshaft timing exhaust gear assembly LH.

(n) Pull out the wire or the like from the No. 2 chain tensioner assembly.

(o) Temporarily install the pulley bolt to the crankshaft.

(p) Turn the crankshaft clockwise, and make sure that there are no abnormal conditions.

NOTICE:
Be sure to perform this confirmation.

2. INSTALL CHAIN SUB-ASSEMBLY (for Bank 1)

NOTICE:
Do not allow any foreign matter to adhere onto or to enter into the component parts during installation.

HINT
Apply engine oil to all component parts of the chain sub-assembly.

(a) Move the link plate in the direction of the arrow in the illustration to press in the plunger.

(b) Insert a 2.5 mm (0.098 in.) hexagon wrench into the No. 1 chain tensioner assembly through the stopper pin hole, and hold the plunger.

HINT
If the stopper pin hole on the link plate and the stopper pin hole on the chain tensioner are not aligned, check that the first notch of the plunger rack is engaged with the stopper tooth. If not engaged, retract the plunger a little so that the first notch of the plunger rack is engaged with the stopper tooth.

(c) Turn the crankshaft and align the alignment marks of the crankshaft timing gear or sprocket, camshaft timing intake gear assembly LH and camshaft timing exhaust gear assembly LH shown in the illustration.

HINT
When the marks are aligned with the positions in the illustration, crankshaft key faces directly underneath.

(d) Align the alignment marks of the camshaft timing intake gear assembly RH and camshaft timing exhaust gear assembly RH as shown in the illustration.

NOTICE:
To avoid damaging the valves, do not turn the camshaft timing intake gear assembly RH and camshaft more than the zero-lift range (the range where the camshaft timing intake gear assembles can be turned lightly by hand).

(e) Align the timing chain mark plate (blue) with the alignment mark on the crankshaft timing gear or sprocket.

(f) Align the timing chain mark plate (pink) with the timing mark on the camshaft timing intake gear assembly RH.

(g) Align the timing chain mark plate (pink) with the timing mark on the camshaft timing exhaust gear assembly RH.

(h) Apply engine oil to the bolt.

(i) Using a 5 mm hexagon socket wrench, install the No. 1 chain vibration damper with the bolt.

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

(j) Install the chain tensioner slipper.

(k) Install the No. 1 chain tensioner assembly with the 2 bolts.

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

(l) Check that the chain is correctly installed.