3-34. ENGINE BLOCK REPAIR (Contd)
c. Inspection and Repair (Contd)
Omit this step if replacement caps are being used.
Reaming of bearing cap bore requires bearing caps be installed and tightened to
21. Bearing cap bore of engine
Use suitable reamer; ream as
a. Position reamer bar on engine
block (14) so rear of bar is piloted
in two good bearing cap bores.
b. Lubricate reamer with
OE/HDO 10 lubricating oil.
c. Use hand driver to turn reamer.
d. Run reamer through all seven
bearing cap bores without backing
up or reversing.
e. Check bearing cap bore with
Clean block thoroughly after
checking bar and measure
diameter with dial indicator.
22. No. 7 bearing sleeve (22),
Inspect for the following:
four camshaft bushings (23),
a. Chips, scoring, or scratches.
Replace if scratched, scored, or
and two camshaft bushings
chipped. Proceed to step 23 for
b. Spun or turned within bore of
If camshaft bushings have turned,
engine block (14).
oil passages will not be aligned.
Remove and discard any camshaft
bushing that has spun or turned.
Proceed to step 23 for removal.
c. Using inside micrometer
Refer to Appendix F for wear
or dial bore gauge, measure
limits. Mark each camshaft
each inside diameter.
bushing for replacement if
not within wear limits. Proceed
to step 23 for removal.