Group 21 Engine
Camshaft
rear seal, replacement
P17
Check
pump
setting
Turn engine two fuLl turns lntil cyl.
1 is ai top dead
center
-
injeclion, again. lf
engine
is
turned too
tar il
must be turned back
approx.
1/4
turn and then to
'0'
mark
otheMise setting wilL be incorrecl.
Dial indicator should show:
D 20 .............-............. 0.7F0.83 mm
=
0.0295-0.0327
in
D 24 ........................... 0.65-0.73
mm
=
0.0256-0.0287 in
D 24 USACanada
1979-1981 ................. 0.65 0.73mm
=
0.0256-0.0287in
1982-......................... 0.82-0.90 mm
=
0.0323-0.0354in
Correct reading:
Tighten injection
pump
mounting
bolts. Proceed to P18.
lncorect reading: Readjust according to
instructions
J;'.
l
Readjusting
pump
setting:
Setting va ues:
D 20 ................................................. 0.80
mm
:
0.0315 in
D 24 ...-.............-....-.......................... 0.70 mm
:
0.0276
in
D 24
U Sp,/Ca
nad
a
'l
979-198'l ......... 0.70 mm
=
0.0276 in
1982-.................
0.85 mm
:0.035in
Reading
less than specified:
Slacken
pump
mounting bolts
and
turn
pump
inwards
to obtain correct value. Tighten mounting bots and
repeat check of
pump
setring.
()){
{!)
a
r)a
Beading
mofe than specified:
Slacken
pump
mounting
bolts andturn
pump
outwards
until dial indicator
shows
approx.
020.........................-.......................0.70mm=0.0276in
D 24
.............................
-..................
0.60 mm
=
0.0236
in
D 24 USr',/Canada
1S7F1981 .........0.60
mm
=
0.0236 in
1982-.................
0.75 mm
=
0.0295 in
Then
tlrn
pump
inwards
unril specified
vatue rs
oo
tained.
Tighten mo!nting
bolts
and recheck
pump
set,
ting.
Notel Injection
pump
musr
not be tapped
or knocked
as
this will
alter its
setting.
t
92