MASSEY FERGUSON MF 14 - Page 52

GROUPO-SECTIONV
MASSEY-
FERGUSON
- PART 3 ENGINE OYERHAUI
PROCEDURES
TAP
CRANKSHAFT
LIGHTLY
TO SEAT
IN
PTO
BEARING
PRESS
THE BEARING
CUP IN UNTIL TIGHT
Fis.23
CAUTION:
REMOVE
POIN:I
PUSH
ROD BEFORE INSTALLII'{G CYLIN-
DER
COVER. Rodtuill
slrike
side
of
cattt lobe and tuill brerft os
couer
is
seared.
After
cylinder cover is
secured,
place
the
engine
in
a
device
that will
allow
the PTO
shaJt
to
extend freely.
DO NOT
set
engine
on PTO
sha-ft
or the correct crankshaJt end-play
cannot
be
obtained.
2.
To
adjust the end-play,
proceed
as
fol-
Iows:
a. Turn the
crankshaJt until the
piston
is
at T. D.
C. Tap
the
flywheel
end
of the
crankshaJt lightiy
wiih
a
mallet to
seat
the PTO bearing.
See Fig.
23.
b.
Press the bearing
cup
(using
fingers
or
two
screwdrivers) inward until tight.
POSITION CO\rER
WITHOUT
GASKETS
.O1O
SPACER
AS
REQUIRED
@
Fis.
25
c. Position
cylinder cover
(magneto
end),
oii seal
and sleeve
tool
(No.
670196)
over the cranksha-ft
and seat on
the
machined
gasket
surface.
Insert a
feeler
gauge
between the cover
and
the
cylinder,
as shown in Fig.
24,
and
re-
cord the reading.
d.
If space
does
not exist
between the
cover
and
the
machined
gasket
surface
to
allow insertation
of
the
feeler
gauge,
use
a
.010"
metal spacer. The spacer
fits between the
bearing cup and
the in-
side
surface of the cover. More
than
one may be used, if required.
e.
After determining the
gap
between the
cover and the machined surface on
the
cylinder
(Step
c),
determine the
shim
thickness
as
follows
to
result in the
.
002"-. 003"
crankshaft
end-play.
Example:
.003"
clearance found
in
Step
c
+.003"
required end-play
.006" shim
thickness
required
+.003"
add
ha-If
of shim
thickness
required to
compensate
for
gasket
compression
.009"
use
shims
that total this
amount
f.
Insert
an
oil
seal in
the
cover.
Posi-
tion the.010"
spacer
(if
required). Po-
sition the shim
gaskets
and
place
the
cover
onto
the
cylinder.
Refer
to
Fig.
25.
Use an
oil seal sleeve
to
protect
the oil seal. Secure
the
cover
in
place
Pr nied
in
U.S.A.
Fis.
24
11