20797255 Volvo.Penta Flange screw

Illustration 1 g00629667
(1) End play of a new camshaft ... 0.10 to 0.41 mm (0.004 to 0.016 inch)Maximum permissible end play of a worn camshaft ... 0.53 mm (0.021 inch) (2) Bolt Tighten the bolt to the following torque. ... 78 N m (58 lb ft) (3) Camshaft thrust washer Thickness of the thrust washer ... 5.49 to 5.54 mm (0.216 to 0.218 inch) Depth of the recess in the cylinder block for the thrust washer ... 5.46 to 5.54 mm (0.215 to 0.218 inch) Tolerance of the thrust washer in cylinder block front face ... -0.05 to +0.08 mm (-0.002 to +0.003 inch) (4) Diameter of the camshaft journals
Table 1
Diameters of Camshaft Journals    
Camshaft Journals     Standard Diameter     Service Limit Diameter (1)    
1    
50.710 to 50.740 mm (1.9965 to 1.9975 inch)    
50.660 mm (1.9945 inch)    
2    
50.460 to 50.480 mm (1.9865 to 1.9875 inch)    
50.410 mm (1.9845 inch)    
3    
49.950 to 49.980 mm (1.9665 to 1.9675 inch)    
49.900 mm (1.9645 inch)    
( 1 ) The service limit is the maximum or the minimum dimension which is specified for a part. A part which has reached the service limit must be replaced.Internal clearance of the journals ... 0.06 to 0.14 mm (0.002 to 0.006 inch)
Illustration 2 g00629702
(5) Camshaft lobe liftSpecified camshaft lobe lift (5) Exhaust lobe ... 7.62 to 7.69 mm (0.300 to 0.303 inch) Inlet lobe ... 7.71 to 7.79 mm (0.304 to 0.307 inch) (6) Camshaft lobe height (7) Base circleTo determine the lobe lift, use the procedure that follows:
Measure the camshaft lobe height (6) .
Measure the base circle (7) .
Subtract the base circle that is found in Step 2 from the camshaft lobe height that is found in Step 1. The difference is the actual camshaft lobe lift.Maximum permissible clearance between the actual lobe lift and the specified lobe lift of a new camshaft ... 0.05 mm (0.002 inch) 3056 Engine
Illustration 3 g00629667
(1) End play of a new camshaft ... 0.10 to 0.41 mm (0.004 to 0.016 inch)Maximum permissible end play of a worn camshaft ... 0.53 mm (0.021 inch) (2) Bolt Tighten the bolt to the following torque. ... 78 N m (58 lb ft) (3) Camshaft thrust washer Thickness of the thrust washer ... 5.49 to 5.54 mm (0.216 to 0.218 inch) Depth of the recess in the cylinder block for the thrust washer ... 5.46 to 5.54 mm (0.215 to 0.218 inch) Tolerance of the thrust washer in cylinder block front face ... -0.05 to +0.08 mm (-0.002 to +0.003 inch) (4) Diameter of the camshaft journals
Table 2
Diameters of Camshaft Journals    
Camshaft Journals     Standard Diameter     Service Limit Diameter (1)    
1    
50.710 to 50.740 mm (1.9965 to 1.9975 inch)    
50.660 mm (1.9945 inch)    
2    
50.460 to 50.480 mm (1.9865 to 1.9875 inch)    
50.410 mm (1.9845 inch)    
3    
50.200 to 50.230 mm (1.9764 to 1.9775 inch)    
50.150 mm (1.9745 inch)    
4    
49.950 to 49.980 mm (1.9665 to 1.9675 inch)    
49.900 mm (1.9645 inch)    
( 1 ) The service limit is the maximum or the minimum dimension which is specified for a part. A part which has reached the service limit must be replaced.Internal clearance of the journals ... 0.06 to 0.14 mm (0.002 to 0.006 inch)
Illustration 4 g00629702
(5) Camshaft lobe liftSpecified camshaft lobe lift (5) Exhaust lobe ... 7.62 to 7.69 mm (0.300 to 0.303 inch) Inlet lobe ... 7.71 to 7.79 mm (0.304 to 0.307 inch) (6) Camshaft lobe height (7) Base circleTo determine the lobe lift, use the procedure that follows:
Measure the camshaft lobe height (6) .
Measure the base circle (7) .
Subtract the base circle that is found in Step 2 from the camshaft lobe height that is found in Step 1. The difference is the actual camshaft lobe lift.Maximum permissible clearance between the actual lobe lift and the specified lobe lift of a new camshaft ... 0.05 mm (0.002 inch)