Detroit Diesel 4000 Series, Service Manual, Page: 110 / 2706

SERIES 4000 12/16V SERVICE MANUAL
See Figure 17 to repair the threaded bore.
1. Helix Coil 3. Spindle
2. Snout 4. Helix Tool
Figure 17 Typical Insert Tool
To repair a threaded bore, follow these steps:
1. If necessary, remove the thread insert from the bore with a suitable tool.
2. Bore core hole with suitable twist drill as listed in Table 10.
3. Cut thread with special tapped bore.
NOTE:
Do not countersink bore.
4. Mount spindle (3) and snout (2), corresponding with thread.
5. Groove on snout must be aligned with markings on the helix installation tool (4).
All information subject to change without notice.
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