Ford 1997 Aerostar Workshop Manual page 152

1997 Aerostar/Ranger
9. Lubricate timing chain with clean engine oil.
Rotate crankshaft, as necessary, to position the crankshaft sprocket timing mark in the 6
o'clock position with No. 1 piston at top dead center firing.
Install camshaft sprocket (with timing mark in the 12 o'clock position), crankshaft sprocket and
timing chain.
Make sure the crankshaft keyway, cam sprocket timing mark, and crank sprocket timing mark
are properly aligned after installation.
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2011-04-27