1D-25 Power Unit Mechanical:
Camshaft, Tappet and shim Removal and
Installation
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Removal
1) Remove the oil pump.
Refer to “Oil Pump Removal and Installation” in
Section 1E (Page 1E-3).
2) Remove the timing chain and chain tensioner.
Refer to “Timing Chain, Chain Tensioner and
Camshaft Sprockets Removal and Installation”
(Page 1D-20).
3) Remove the bolts securing camshaft housing (1) to
cylinder head, then remove each camshaft housing.
NOTE
For ease of assembly, note position of each
individual camshaft housing.
4) Remove intake and exhaust camshaft.
5) Remove tappets and tappet shims.
NOTE
All tappets and tappet shims must be
installed in their original positions.
For ease of assembly, lay out tappets and
record shim thickness for each individual
cylinder / valve position.
Installation
1) Apply engine oil around tappets and install them.
2) Install tappet shims.
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