Piston And Connecting Rod Disassembly And Assembly - Ford LSG 875 Service Manual

1-51
BASIC ENGINE
I-51
EMOVAL AND INSTALLATION
(Continued)
PISTON AND CONNECTING ROD
Disassembly
1. Remove the bearing inserts from the con-
necting rod and cap.
2. Mark the pistons to assure assembly with
same rod and installation in the same cylin-
ders from which they were removed.
3. Using an arbor press and the tool shown in
the illustration, press the piston pin from the
piston and connecting rod.. Remove the
piston rings.
Refer to Page I-17 for cleaning and inspection
procedures.
Refer to Page 1-45 for repair procedures.
REVERSIBLE
LOCATOR
DRIVER
LOT
INSERT THIS END
IN PISTON HOLE
FOR INSTALLATION
\
ADAPTER
TOOL T68P-6135-A
PISTON PIN
REMOVER/INSTALLER
A487-h2C
Assembly
Check the fit of a new piston in the cylin-
der bore before assembling piston and
piston pin to connecting rod. Piston pin bore
of connecting rod and diameter of piston pin
must be within specifications.
1.
Apply a light coat of engine oil to all parts.
Assemble the piston to the connecting rod
with the cylinder number side of the con-
necting rod and indentation notch in piston
positioned in illustration.
RIGHT BANK
NOTCH TOWARD
LEFT BANK
FRONT OF ENGINE
811
C/R
NUMBERED SIDE
OF ROD
A29754
RIGHT BANK NOTCH TOWARD INBOARD
SIDE OF PISTON
LEFT BANK
9:l
C/R
2 .
3 .
4 .
5 .
NUMBERED SIDE OF ROD A10402-1A
Start the piston pin in the piston and the
connecting rod. Using an arbor press, press
the piston pin through the piston and con-
necting rod until the end of pin is l/16 inch to
l/8 inch below chamfer of the pin bore in the
piston.
Check the end gap of all piston rings. End
gap must be within specifications. Follow the
instructions contained on piston ring pack-
age and install the piston rings.
Check the ring side clearance of compres-
sion rings with a feeler gauge inserted be-
tween the ring and the lower land. Feeler
gauge should slide freely around the ring cir-
cumference without binding. Any wear will
form a step at the inner portion of the lower
land.
If the lower lands have high steps,
replace the piston.
Be sure the bearing inserts and bearing
bore in the connecting rod and cap are
clean. Foreign material under the inserts will
distort the bearing and cause failure. Install
bearing inserts in connecting rod and cap
with tangs fitting in slots provided.