Harley-Davidson WLA - Page 75

TM
9-879
41-43
MOTORCYCU,
SOLO
(HARLEY-DAVIDSON
MODEL WLA)
(5)
Remove
cylinder head bolts, using
head
bolt
wrench 41-W-
1525.
NOTE:
On some
42 WLA
models, plain
washers
(O.OPS-inch
thick),
in
addition
to
regular
(heavy)
cylinder bead bolt
washers,
were
used to
prevent cylinder head
bolts from bottoming.
(6)
Perform
carbon
removal
C^ead
only). Refer to
paragraph
42.
b.
Installing
Gasket and Head (fig- 15).
(1)
Clean top
of cylinder.
Apply
a
light
application
of
grease
or
oil to both
sides
of
gasket
before
locating
on
cylinder head.
Place
head on
cylinder.
(2)
Install
head bolts, using heavy
washers (also
0.095-inch
rhick
plain
washers, if any were
removed). If in doubt
as
to use
of
0.095-
inch thick
washers
in
addition to regular
washers, measure depth
of
bolt
holes
in
cylinder
head.
Head
having hole
depth
of
"Vn^
'^^^'^
must
use the
0-095-inch thick washers in
addition
to
regular washers.
Head
having bolt
hole depth of
IW^
inch does not
require
the
0.095-inch
thick washers.
(3)
Install
cylinder
frame bracket with the two
long bolts, special
(spool-shaped)
spacers,
and
f^at washers.
The
spacers
go
between
cylinder heads and frame bracket. A flat washer
goes
under the head
of each
long cylinder bolt,
above
the
bracket; some engines may have
fiat washers between
the
spacers and the bracket.
(4)
Tighten
head
bolts evenly to ensure
a
tight cylinder head
joint. Use
head bolt
wrench
41-W-1525.
first
turning down
bolts
just
snug,
then
tightening each bolt
Ys
to
Y^
turn at
a time,
until
all
are securely tightened. If
torque
wrench
is available, tighten head
bolts to 60 foot-pounds minimum,
65 foot-pounds maximum tension
when engine is
cold.
42. CARBON REMOV.^L.
a. At tirr\e cylinder head
is
removed for
gasket
replacement,
car-
bon
must
be removed from
head
only.
43. VALVE' TAPPET
ADJUSTMENT (fig.
16).
a.
.Adjust Tappets with
Engine Cold. Before loosening valve
spring covers,
a
light
application of oil around
top
edge of each
cover
will facilitate raising
cover
without damage to seal. packing.
(1)
Loosen valve
spring covers; use tappet and valve
cover
wrench 41-W-3617.
(2)
Before
checking
or
adjusting
tappet clearance, make
sure
valve
is seated
aad that
tappet
is
at lowest position, by
turning engine
ahead
until like tappet (inlet or exhaust, whichever
one is being
74