Perkins 1106D Disassembly And Assembly page 120

120
Disassembly and Assembly Section
b. Use a straight edge to check the threads of the
setscrews. Refer to Illustration 243. Replace
any setscrews that show visual reduction in the
diameter of the thread over length (Y).
11. Lubricate the threads and the shoulder of the
setscrews (14) with clean engine oil.
Illustration 244
Illustration 245
Sequence for tightening the setscrews for the cylinder head
12. Install the setscrews (14) to the cylinder head
(16).
Note: If the engine has two longer setscrews, install
the longer setscrews in holes (X).
13. Tighten the setscrews to a torque of 50 N·m
(37 lb ft) in the numerical sequence. Refer to
Illustration 245.
14. Tighten the setscrews to a torque of 100 N·m
(74 lb ft) in the numerical sequence. Refer to
Illustration 245.
15. Turn the setscrews through an additional 225
degrees in the numerical sequence. Refer to
Illustration 245. Use Tooling (B) to achieve the
correct final torque.
Illustration 246
Typical example
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16. Use Tooling (C) in order to lubricate the O-ring
seals. Install two new O-ring seals (12) and (13) to
the bypass tube (11). Install the bypass tube in the
cylinder head. Install the setscrews (10). Tighten
the setscrews to a torque of 22 N·m (16 lb ft).
Illustration 247
Typical example
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17. Remove the plugs and caps from the ports and
tube assemblies.
18. Install the tube assembly (8) for the fuel return
to the cylinder head and to the transfer pump.
Secure the tube clips for the tube assembly (8).
19. If the engine has a wastegate solenoid, install the
tube assembly (9) for the wastegate solenoid to
the cylinder head. Secure the tube clips for the
tube assembly (9).
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