Volvo B 21 - Oil Pump Cleaning and Inspection

Group 21 Recondit io ning engine
Cleaning, inspection
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OU pump. cleaning - inspection
Operations C27- 33
Disassemble oil pump
e27
On older types it is necessary to remove strainer to
obtain 8ccess to retaining screws .
e28
Clean and inspect pump
Ch eck ge8rs, pump body and cover for signs of wear
and damag
e.
Test relief valve spring
load
O
46-54 N (10.1-11.9Ib.)
62 -7 6 N (13. 6-17 . 2Ib.)
Check backlash
0. 15-0 . 35 mm (0.0059-0.0138 in).
length
39.2 mm
(1.5445 in)
26.25 mm
(1 . 0343 in)
21.0 mm
(0.6274 in)
e29
e30
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