C280 Marine Engines Caterpillar


Housing (Front)

Usage:

C280-08 J4R


Illustration 1g03778272

Table 1
Specification for 456-6677 Front Housing Gp 
Item  Qty  Part  Specification Description 
7C-1897 Speed Sensor Gp  Use the following procedure to tighten the engine speed sensor:

1. Before assembly, apply white Loctite 5140 flange sealant to the threads.
2. Install the engine speed sensor into the 5/8 threaded hole and turn until the magnetic core contact with a tooth of the flywheel ring gear.
3. Back out 180 degrees and tighten the locknut.
4. Tighten the locknut to 45 ± 7 N·m (33 ± 5 lb ft).
5. The clearance between the engine speed sensor and the flywheel ring gear is 0.56 to 0.84 mm (0.022 to 0.033 inch)
1W-0104 Hollow Dowel  Extension (F) after installation is 10.00 ± 1.00 mm (0.394 ± 0.039 inch)
1W-0104 Hollow Dowel  Extension (H) after installation is 4.00 ± 1.00 mm (0.157 ± 0.039 inch)
7N-2043 Dowel  Extension (G) after installation is 6.00 ± 0.50 mm (0.236 ± 0.020 inch)
3P-0655 O-Ring Seal  Before assembly, lightly lubricate the bore with engine oil. 
6V-3833 O-Ring Seal  Before assembly, lightly lubricate the bore with engine oil. 
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