INDICATOR 1W0701 - Caterpillar

Illustration 1 g06287815
Illustration 2 g03145897
Tightening sequence for exhaust manifold
Table 1
Item Qty Part Specification Description
1 12 239-1388 Gasket Install the gasket so that the "manifold side" marking faces away from the cylinder head.
2 8 524-2049 Taperlock Stud Torque to 35 5 N m (26 4 lb ft).
3 4 243-3566 Bellows As Do not reuse.
4 24 2N-2766 Locknut Use the following procedure to tighten the locknut:
Use a centering tool in at least one oversize hole per manifold section to align the manifolds. Do not remove the centering tools until locknuts are tightened.
1. Before assembly, apply Loctite C5A copper anti-seize to the threads.
2. Tighten the locknut in a numerical sequence to 20 3 N m (15 2 lb ft) as shown in Illustration 2.
3. Again, tighten the locknut in a numerical sequence to 38 5 N m (28 4 lb ft) as shown in Illustration 2.
Do not reuse.
5 8 8N-0879 Clamp Torque to 7.5 1.0 N m (66.4 8.9 lb in).
Do not reuse the clamp.