Volvo B 21 - Scan-071002-0136

Group 21 Reconditioning engine
Thread repairs
Do not repair these threads
(Threads shown bnlow cannot or must not be repaired)
Cylinder head
Inlet manifold
:0:
All conical threads such as plu!]s and nipples in inlet manifold on all engine types. A few
examples are
shown above.
later type inlet manifoids havo a few unthreaded ho les intended for self-tapping screws.
Inlot manifold A-engines
Idle adjustment screw
e
1378D8
A3
1371107
13