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5-16 ENGINE TOP END
Camshaft, Camshaft Chain
•
Apply engine oil to all cam parts and journals.
•
If a new camshaft is to be used, apply a thin coat of molyb-
denum d
isulfide grease to the cam surfaces.
NOTE
○
The exhaust camshaft has a 030 EX mark [A] and the
inlet camshaft has a 030 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 m arks on the sprockets are positioned
as shown.
○
The timing marks of #1, 4T 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].
[D] EX mark
[E] IN mark
•
Before installing the camshaft cap and chain guide, install
the camshaft chain tensioner body temporally.
•
Install the camshaft cap and chain guide [A].
○
First tighten the camshaft cap and all chain guide bolts
evenly to seat the camshaft i n place, then tighten all bolts
following the specified t ightening sequence.
Torque - Camshaft Cap Bolts: 12 N·m (1.2 kgf·m, 104 in·lb)
Camshaft Ch ain Guide Bolts: 12 N·m (1.2 kgf·m,
104 in·lb)
•
Tighten the camshaft chain tensioner (see Camshaft
Chain Tensioner Installation).
•
Install the cylinder head cover (see Cylinder Head Cover
Installation).