Connecting Rod Bearing Replacement; Piston And Connecting Rod Assembly; Conneding Rod Side Clearance - Lincoln Continental 1964 Shop Manual

8-38
20. Install the oil pump and inter-
mediate shaft, by following steps 1
and 2 under "Oil Pump Installation."
21. Install the oil pan, by follow-
ing steps 1 thru 9 under "Oil Pan
Installation."
22. Remove the auxiliary starter
switch. Insert the high tension lead
wire in the coil. Install the spark
plugs and torque them to specifica-
tions. Install the spark plug wires.
23. Start the engine and check
the oil pressure at the instrument
panel indicator. While the engine is
running, check for oil leakage.
CONNECTING ROD
BEARING REPLACEMENT
Check and replace one bearing at
a time, leaving the other connecting
rods securely attached to the journals.
1. Follow steps 1 and 2 under
"Main Bearing Replacement."
2. Rotate the crankshaft to posi-
tion the connecting rod journal at
BDC for removal of the connecting
rod bearing caps and inserts.
3. Remove the mounting nuts,
bearing cap and lower bearing insert.
Push the connecting rod and piston
up into the cylinder bore with a
wooden hammer handle. Remove the
upper bearing insert.
4. Examine the bearing inserts.
Bearings that have a scored, chipped,
grooved, or worn surface must be
replaced (Part 8-1, Section 2). Dirt
or other foreign material under a
bearing insert may have distorted
the bearing. Sound judgment and
proper inspections are necessary
when diagnosing bearing failures.
5. If the wear pattern on the con-
necting rod bearing indicates a radius
ride, inspect the crankshaft journal
for the cause of the trouble.
If the crankshaft is the cause of
failure, it must be removed from the
engine to be ground to fit the next
undersize bearing.
If bearing failure is due to a bent
connecting rod, remove the connect-
ing rod and piston assembly and
check the connecting rod aligments.
6. Inspect the connecting rod
journal for cracks, scratches, burrs,
grooves or score marks. Carefully
dress minor imperfections with a
fine oil stone. Remove the crankshaft
if it is damaged beyond repair and
grind the journal to fit the next un-
dersize bearing (Part 8-\, Section 2).
7. ct'ean oil, dirt and foreign ma-
terial from the connecting rod jour-
nal, connecting rod, bearing cap and
bearings.
GROUP 8-ENGINE
8. Install the upper bearing on the
rod. Make certain the locking tang
of the bearing is properly located.
Pull the rod assembly into firm con-
tact with the crankshaft journal.
9. Install the lower bearing insert
in the connecting rod cap. Place a
piece of Plastigage on the bearing
surface, the full width of the bear-
ing, about
~
inch off-center (Fig.
38). Install the cap and torque the
mounting nuts to specifications. Do
not rotate the crankshaft while
the Plastigage is in place.
10. Remove the bearing cap. Com-
pare the width of the flattened Plasti-
gage at its widest point with the scale
printed on the Plastigage envelope.
This is the minimum bearing clear-
ance (Fig. 38). Check the Plastigage
at its narrowest point to obtain the
maximum bearing clearance. The
difference between the minimum and
maximum bearing clearance is the
taper of the journal.
If the taper exceeds the specified
limit, the crankshaft must be re-
moved and the journal ground to size
for the next undersize bearing.
If the clearance is greater than the
specified limit, it will be necessary to
remove the crankshaft and grind the
journal to size for the next undersize
bearing.
If the clearance is less than the
~pccified
limit, try two red bearing
inserts or a combination of red and
blue, depending on the condition.
Any combination of the standard
red and/ or blue bearing inserts
may be used.
11. Lubricate the connecting rod
bearings with engine oil and torque
the connecting rod cap retaining nuts
FIG.
41-Conneding
Rod Side Clearance
{158)
to specifications. Check the connect-
ing rod side clearance with a feeler
gauge (Fig. 41).
12. Follow steps 20 thru 23 under
"Main Bearing Replacement."
CLEANING AND INSPECTION
Refer to Part 8-1, Section 3 for
the cleaning and inspection proce-
dures.
PISTON AND CONNECTING
ROD ASSEMBLY
REMOVAL
1. Remove the intake manifold,
valve push rod chamber cover, cyl-
inder head(s) and related parts, fol-
lowing the procedure under "Cylinder
Head Removal."
2. Remove the oil pan, following
the procedure under "Oil Pan Re-
moval."
3. Remove the oil pump, inlet
tube and intermediate shaft, follow-
ing the procedure under "Oil Pump
Removal."
4. Prior to removing pistons, re-
move the ridge from each cylinder
bore as follows:
Revolve the crankshaft until the
piston to be removed is at BDC. In-
sert a clean cloth into the bore to
prevent chips and carbon from fall-
ing onto the pistons and rings. Re-
move the cylinder bore ridge with
cylinder ridge reamer tool 6011-E
as shown in Fig. 42 (adapter tool
6011-F can be used to up-date cyl-
inder ridge reamer tool 60 11-A). Re-
move the cloth. Wipe the cylinder
bore clean.
5. Rotate the crankshaft until the
piston to be removed is at BDC.
Remove the connecting rod bearing
cap and bearing inser.ts. Push the
connecting rod and piston out of
the cylinder bore with a wooden
hammer handle. Use care to prevent
striking of the cylinder bore with
the connecting rod. If the cylin-
inder bore is scored or nicked
while removing the assembly, it
will have to be honed or bored
to repair the damage.
Install the bearing inserts and
connecting rod cap on the connect-
ing rod from which they were re-
moved. The numbered side of the
rod and cap should match. Each
assembly is numbered so that it
can be installed in the cylinder
bore from which it was removed,
if inspection proves their condi-
tion to be satisfactory.
INSTALLATION
1. Remove the bearing cap and