Readjusting Pump Setting; Reading Less Than Specified; Reconnect Cold Start Device - Volvo D 20 Service Manual

Group 21 Engine
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Cylinder head, removal
Readlusting pump setting:
Setting valuesi
D 20 ......-.............-....-.......................
0.80 mm = 0.0315 in
D 24 .....-....-....-........-....-...-...-....-......
0.70 mm = 0-0276 in
D 2 4 U S A a n d C a n a d a 1 9 7 9 8 1 . . . . . . 0 . 7 0 m m : 0 . 0 2 7 6 i n
1982- .......... 0.85 mm = 0.0335 in
Reading less than specified:
Slacken purnp mounting bolts and lurn pump inwards
to obtain corecr value. Tighten mounring bolts and
repeat check of pump setting.
Beading more than specified:
Slacken pump mouling bolts and turn pump outwards
until dial indicator shows approx.
D 2 0 . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . 0 . 7 0
m m = 0 . 0 2 7 6 i n
D 24 ..........................................-...-..
0.60 mm : 0.0236 in
D 24USA,/Canada
l97F81 .............
0.60 mm =0.0236in
1 S 8 2 . . . . . . . . . . . . . . . . . 0 . 7 5 m m = 0 . 0 2 9
Th€n turn pump inwards until specified va ue is ob-
tained. Tighten mounting bolts and recheck punrp set-
ting.
Notel Injection pump must rot be tapped or knocked as
this wil alter setting.
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Remove dial indicator and holder 5194. lnstall
plug with new seal
Tishtening torque 9 Nm (6.5 ft lbs).
Reconnect cold start device
Press ever forwards and turn
c20
s l e e v e 9 0 " . R e t i g h t e n
c21
Install valve cover and timing gear covers
U s e n e w g a s k e t s i f n e c e s s a r y .
Two types ol pin studs are avaitabte, see tig. Lare ryDes
h € v e a s p a c e r , a n d h o i e i n g a s k e l i s l a r g e r t o p r e v e n l
d a m a g e t o g a s k e r b y o v e r r i g h t e n i n g ,
Late ard eu ry type pa.ts musr not be inlerchanged.
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