898101823 Mercruiser SCREW

Illustration 1 g00585728
Typical example
Type 1 Camshaft
Note: A Type 1 Camshaft has a thrust washer (2) that is 0.05 mm (0.002 inch) thinner than the thrust washer on the Type 2 Camshaft. (1) Gear Heat the gear for installation. Do not use a torch. Heat the gear to a maximum temperature. ... 316 °C (600 °F) (2) Clearance for thrust washer The distance from the shoulder of the camshaft to the face of the gear ... 4.83 0.05 mm (0.190 0.002 inch)Thickness of new thrust washer ... 4.65 0.03 mm (0.183 0.001 inch)End play of a new camshaft ... 0.18 0.08 mm (0.007 0.003 inch) Maximum permissible end play of a worn camshaft ... 0.64 mm (0.025 inch) (3) Camshaft journal Diameter of the camshaft journal ... 65.126 0.013 mm (2.5640 0.0005 inch) (4) Inlet lobe (5) Injector lobe (6) Exhaust lobe Type 2 Camshaft
Note: A Type 1 Camshaft has a thrust washer (2) that is 0.05 mm (0.002 inch) thinner than the thrust washer on the Type 2 Camshaft. (1) Gear Heat the gear for installation. Do not use a torch. Heat the gear to a maximum temperature. ... 316 °C (600 °F) (2) Clearance for thrust washer The distance from the shoulder of the camshaft to the face of the gear ... 4.83 0.05 mm (0.190 0.002 inch)Thickness of new thrust washer ... 4.70 mm (0.185 inch)End play of a new camshaft ... 0.13 0.05 mm (0.005 0.002 inch) Maximum permissible end play of a worn camshaft ... 0.64 mm (0.025 inch) (3) Camshaft journal Diameter of the camshaft journal ... 65.126 0.013 mm (2.5640 0.0005 inch) (4) Inlet lobe (5) Injector lobe (6) Exhaust lobe
Illustration 2 g00291256
Typical example
(7) Specific camshaft lobe lift 7C-4014 Camshaft 7C-4016 CamshaftNote: Identification is on the end of the camshaft.Exhaust lobe ... 9.283 0.100 mm (0.3655 0.0039 inch)Inlet lobe ... 9.283 0.100 mm (0.3655 0.0039 inch)Injector lobe ... 9.733 0.100 mm (0.3832 0.0039 inch) 6I-4098 CamshaftNote: Identification is on the end of the camshaft.Exhaust lobe ... 7.459 0.100 mm (0.2937 0.0039 inch)Inlet lobe ... 9.289 0.100 mm (0.3657 0.0039 inch)Injector lobe ... 9.842 0.100 mm (0.3875 0.0039 inch) 101-4538 Camshaft 105-1560 Camshaft 1W-8635 Camshaft 113-6099 CamshaftNote: Identification is on the end of the camshaft.Exhaust lobe ... 7.456 0.100 mm (0.2935 0.0039 inch)Inlet lobe ... 9.264 0.100 mm (0.3647 0.0039 inch)Injector lobe ... 10.305 0.100 mm (0.4057 0.0039 inch) 100-6300 Camshaft 107-7603 CamshaftNote: Identification is on the end of the camshaft.Exhaust lobe ... 7.459 0.100 mm (0.2937 0.0039 inch)Inlet lobe ... 9.264 0.100 mm (0.3647 0.0039 inch)Injector lobe ... 10.305 0.100 mm (0.4057 0.0039 inch) 105-1544 Camshaft 115-4131 CamshaftNote: Identification is on the end of the camshaft.Exhaust lobe ... 7.456 0.100 mm (0.2935 0.0039 inch)Inlet lobe ... 9.264 0.100 mm (0.3647 0.0039 inch)Injector lobe ... 9.773 0.100 mm (0.3848 0.0039 inch) 133-4984 Camshaft 136-0593 CamshaftNote: Identification is on the end of the camshaft.Exhaust lobe ... 7.459 0.100 mm (0.2937 0.0039 inch)Inlet lobe ... 9.264 0.100 mm (0.3647 0.0039 inch)Injector lobe ... 9.733 0.100 mm (0.3832 0.0039 inch)To find the lobe lift, use the procedure that follows:
Measure the camshaft lobe height (8).
Measure the base circle (9).
Subtract the diameter of the base circle that is found in Step 2 from the lobe height that is found in Step 1. The difference is the actual camshaft lobe lift (7). Note: Use the appropriate Guidelines for Reusable Parts publication in order to determine if the wear of the camshaft is excessive.