Ford 1997 Aerostar Workshop Manual page 23

1997 Aerostar/Ranger
3. Carefully position cylinder heads on cylinder blocks.
4. Install new cylinder head retaining bolts and hand tighten.
5. Tighten retaining bolts in sequence as illustrated to 80 Nm (59 lb-ft).
6. Back off all bolts a minimum of one full turn (360 degrees).
7. NOTE: When the cylinder head retaining bolts have been tightened using this procedure, it is
not necessary to retighten the bolts after extended engine operation. However, the bolts can
be checked for tightness if desired.
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2011-04-27