Volvo D20 - Page 37

Group 21 Reconditioning engine
e/eaning, checking
C25
Place pump gears in housing and check play/
backlash
Place large pumpgear in housing with (/J.) up and then
install small gear.
Check play/backlash. If too large, replace entire pump.
Install cover
Test relief valve spring
Load
N Ib
O O
175-195 39
approx.
200 45
Install relief valve
Length
mm
49
22
19.8
;n
1.930
0.866
0.780
ffully
compressedl
Check that plunger moves freely.
Install
new cap per washer.
Tightening torque 40 Nm (30 f t Ibs).
C26
C27
C28
35