GLOW PLUG GP 1530524 - Caterpillar

Timing Advance Unit
For the correct timing specifications to use for adjustment of the automatic timing advance unit, see the Engine Information Plate for the performance specification number and make reference to the TMI (Technical Marketing Information), or Fuel Setting And Related Information Fiche.(1) Spring. See Spring Chart.(2) Torque for four bolts ... 12 4 N m (9 3 lb ft)(3) Torque for plug ... 70 15 N m (50 11 lb ft)(4) Torque for nut ... 4.5 0.5 N m (39.82 4.43 lb in)(5) Torque for nut ... 70 15 N m (50 11 lb ft)(6) Spring. See Spring Chart.(7) Bolts that hold flyweight carriers. Apply 4C9500 Quick Cure Primer to bolt threads and let it dry. Put 9S3263 Thread Lock on bolt threads before installation.(8) Torque for four bolts ... 55 7 N m (40 5 lb ft) For the correct timing specifications to use for adjustment of the automatic timing advance unit, see the Engine Information Plate for the performance specification number and make reference to the TMI (Technical Marketing Information), or Fuel Setting And Related Information Fiche.(1) Torque for eight bolts ... 55 7 N m (40 5 lb ft)(2) Torque for nut ... 4.5 0.5 N m (40 4 lb in)(3) Torque for nut ... 70 15 N m (50 11 lb in)(4) 4P8248 Spring:Test force ... 9.69 0.48 N (2.178 .108 lb)Length under test force ... 39.0 mm (1.54 in)Total test force ... 77.43 .45 N (17.400 .101 lb)Free length after test ... 50.34 mm (1.982 in)Outside diameter ... 15.40 mm (.606 in)Color Code (stripes) ... one purple and one yellow(5) Torque for bolts that hold flyweight carriers ... 3.4 N m (30 lb in)(6) Torque for four bolts ... 13 4 N m (10 3 lb ft)Without Automatic Timing Advance Unit
(1) Torque for four bolts ... 55 7 N m (40 5 lb ft)