Group
21
Reconditioning engine
Thread repairs
Installing thread inserts
Thread
Thread depth
Drilling depth
A6
Drilling depth
Select drill size, tap and insert
Measure length and thread of old hole.
A7
Tap hole
NOTE!
Special instructions for spark plug holes, see
page 16.
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 fully cut screw thread along
its entire length.
Clean the hole.
A8
Assemble installation tool
M6-M14 threads: fit correct mandrel and crank in in-
stallation tool 998 5830-0.
M16 and coarser threads: use the prescribed complete
installation
tool.
17
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