Perkins 103-13 - Valve Seat Width

3
44 Workshop Manual, TPD 1377E, issue 4
100 Series
Valve seat width
To correct Operation 3-20
If the contact width (B1) of the valve seat is more than service limit, check wear condition of the valve guide
first.
Using a seat cutter of 45° correct the seat.
Intake valve
Exhaust valve
Engine model
Clearance mm (in)
Standard Service limit
102-05, 103-07 1,59 - 1,80 (0.0626 - 0.0709) 2,5 (0,098) max
103-10 1,70 - 2,10 (0.0670 - 0.0830) 2,5 (0,098) max
103-13, 103-15 1,66 - 1,87 (0.0653 - 0.0736) 2,5 (0,098) max
104-19, 104-22 1,50 - 2,00 (0.0591 - 0.0790) 2,5 (0,098) max
Engine model
Clearance mm (in)
Standard Service limit
102-05, 103-07 1,59 - 1,80 (0.0626 - 0.0709) 2,5 (0,098) max
103-10 1,70 - 2,10 (0.0670 - 0.0830) 2,5 (0,098) max
103-13, 103-15 1,66 - 1,73 (0.0653 - 0.0681) 2,5 (0,098) max
104-19, 104-22 1,94 - 2,16 (0.0764 - 0.0850) 2,5 (0,098) max
45°
1
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