5-18 ENGINE TOP END
Camshaft, Camshaft Chain
Install the cam sprockets as shown in figure.
#4 Cam Positions [A]
Inlet Cam Sprocket [B]
Exhaust Cam Sprocket [C]
Apply a non-permanent locking agent to the threads and
tighten the bolts.
Torque - Cam Sprocket Mounting Bolts: 15 N·m (1.5 kgf·m,
Apply engine oil to all cam parts and journals.
If a new camshaft is to be used, apply a thin coat of molyb-
denum disulfide grease to the cam surfaces.
The exhaust camshaft has a 161 EX mark [A] and the
inlet camshaft has a 161 IN mark [B]. Be careful not to
mix up these shafts.
Position the crankshaft at #1, 4 piston TDC.
Pull the tension side (exhaust side) [A] of the chain taut
to install the chain.
Engage the camshaft chain with the camshaft sprockets
so that the timing marks on the sprockets are positioned
Confirm the camshaft sprocket position using a mirror.
The timing marks of #1, 4 must be aligned with the lower
surface of crankcase of rear side [B].
The timing marks must be aligned with the cylinder head
upper surface [C].
EX Mark [D]
IN Mark [E]
1st Pin [F]
2nd Pin [G]
3rd Pin [H]
28th Pin [I]
Install the camshaft cap.
First tighten the camshaft cap bolts evenly to seat the
camshaft in place, then tighten all bolts following the spec-
ified tightening sequence.
First Round [1 ∼ 20]
Second Round [1 ∼ 16]
Final Tightening: [1 ∼ 20]
Torque - Camshaft Cap Bolts:
First, Second: 5.9 N·m (0.60 kgf·m, 52 in·lb)
Final: 12 N·m (1.2 kgf·m, 104 in·lb)
Install the camshaft chain tensioner (see Camshaft Chain
Install the removed parts (see appropriate chapters).