Volvo D 20 Service Manual page 80

Group 21 Engine
Cafishaft, installing
N 1 9
S€t belt tension
Adjust tension by moving pump.
Use gauge 5197 to check tension. Attach gauge to bett
and set to 12.5 units. Stretch bett untit mark on gauge
plunger is flush with sleeve.
Depress belt strongly with hand and rechecUaotusr ren-
N20
Set pump and tighten camshaft rear sprocket
Use 5199to hold sprocket. Torque wrench should be at
right angles to wrench 5201 otherwise lorque will be
Using 5199, turn sprocket slowly clockwise until dial
D 2 0 . . . . . . . . . . . . . . . . . . . - . . . - . . - . . . . . . . . . . . . . . . . . 0 . 8 0 m m = 0 . 0 3 1 5 i n
D 24..............................-........-.........
0.70 mm : 0.0276 in
D 24 USA,/Canada
1979-1981 ......... 0.70 mm = 0.0276 in
1982-.................
0.85 mm = 0.0335 in
Hold sprocket in this posilion and torque bolt to 100 Nm
{73 ft lbs). Take care that camshaft and sprocket do not
0
0
I
(
N21
Remove stop 5193 trom pump gear
0),(
0)'
I
N22
Check pump setting
T u r n e n g i n e t w o f u l l l u r n s u n t i l c y l . 1 i s a t t o p d e a d
c e n t e r - i n i € c t i o n , a g a i n . l f e n g i n e i s t u r n e d t o o f a r i t
m u s t b e i u r n e d b a c k a p p r o x . 1 / 4 t u r n a n d t h e n t o z e r o
m a r k o t h e r w i s e s e t t i n g w i l l b e i n c o r e c t .
D i a l i n d i c a t o r s h o u l d s h o w l
D 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 . 7 5 - 0 . 8 3 m m : 0 . 0 2 9 5 0 . 0 3 2 7 i n
D 2 4 . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 . 6 5 - 0 - 7 3 m m = 0 . 0 2 5 6 - 0 . 0 2 8 7 i n
D 24 UStuCanada
1 9 7 F 1 9 8 1 . . . . . . . . . . . . . - . . .
0 . 6 F 0 . 7 3 m m = 0 . 0 2 5 6 - 0 . 0 2 8 7 i n
1 9 8 2 - . . . . . . . . . . . . . . . . . . . . . . . . .
0 . 4 2 - 0 . 9 0 m m = 0 . 0 3 2 3 - 0 . 0 3 5 4 i n
Corect reading: Tighten injection pump mounting
bolts. Proceed to N23.
Incorrect reading: Readjust according to instructions
7 A