Fiat Kobelco EX355 Tier2, Technical Manual

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W5-3-32 EX355
ENGINE OVERHAUL
1. Remove the head cover.
2. Remove the cylinder head cover gasket.
Discard the gasket.
NOTE: Be careful not to lose the collars inserted into
the cylinder head cover assembly.
3. Remove the rubber plug.
4. Remove the rocker arm shaft assembly.
Refer to “Rocker Arm Assembly Removal” in this
manual.
5. Remove the camshaft bearing caps.
• Loosen the camshaft bearing cap nuts and bolts
evenly from the outside to the inside.
NOTE: If the camshaft bearings are to be reinstalled,
keep them in order for installation to their original
location.
6. Remove the camshaft with camshaft gear.
Installation
1. Install the camshaft with camshaft gear to the
cylinder head.
1. Align the crankshaft damper pulley TDC mark
with the pointer by rotating the crankshaft in the
normal direction of engine rotation. Check the
position of the alignment timing mark on the
injection pump for No. 1. piston of TDC.
2. Install the camshaft bearings to the cylinder
head bearing grooves and bearing caps.
3. Apply engine oil to the camshaft bearing sliding
surfaces before installing the camshaft.
4. Install the camshaft with camshaft gear to the
cylinder head.
5. Carefully align the camshaft gear “ B ” mark and
the upper cylinder head face as shown in the
illustration.
SM7068
SM7090
SM7023
SM7091
Pointer