Volvo B 21 - Thread Insert Installation Process

Thread
Thread depth
Drilling depth
Group 27 Reconditioning engine
Thread repairs
Ins1talling thread inserts
Cutting edge
, .~
, ..
Select drill size, tap and insert
Measure length and thread of old hole.
Tap hole
NOTEI Special i nstru c tians for spark plug hales,
see page 14.
A6
A7
Measure depth of hole. Drill out hole to this depth.
Cut the screw thread to such a depth
that the thread
insert makes contact
with fuliv cut screw thread along
its entire length.
Clean
the hole.
AB
Assemble installation tool
M6- M1. threads: fit correct mandrel and crank in in ·
stallation tool
998 5830-0.
M16 and coaner threads: usa the appropr iate installa-
tion tool.
15