ar0530b383102a

Rework valve seat ring basic bore

Tipo ar · tema 05.30 · versione 0102 · 2020-02-17

Valido per: Engine 904.9, 906.9 Engine 924.9 Engine 926.9 (except 926.942) in model 382.1 (except 382.171/176) Engine 926.9 (except 926.95) Engine 926.9

Non disponibile in “it”; mostrato in Inglese.

Collocazione

Gruppo funzionale 1 Motore › 05 Comando motore › 05.30 Valvole — Serie 382 (modelli 111, 123, 134, 135, 143, 153, 154, 155, 156, 157, 158, 175, 177, 178, 180, 181, 182, 184, 185, 186, 187, 188, 189, 190) · Serie 904 (modelli 9**) · Serie 906 (modelli 9**)

EinPAS 15 Motore › 15.17 Distribuzione del motore › 15.17.30 Organi della distribuzione — Serie 382 (modelli 111, 123, 134, 135, 143, 153, 154, 155, 156, 157, 158, 175, 177, 178, 180, 181, 182, 184, 185, 186, 187, 188, 189, 190) · Serie 904 (modelli 9**) · Serie 906 (modelli 9**)

Valido anche per motori/cambi: 924 9**, 926 9**, 926 90*, 926 900, 926 91*, 926 910, 926 911, 926 912, 926 913, 926 914, 926 915, 926 916, 926 917, 926 918, 926 919, 926 92*, 926 920, 926 921, 926 924, 926 925, 926 926, 926 927, 926 928, 926 929, 926 93*, 926 930, 926 932, 926 933, 926 934, 926 935, 926 937, 926 938, 926 94*, 926 941, 926 945, 926 946, 926 947, 926 948, 926 949, 926 950, 926 956, 926 959, 926 96*, 926 960, 926 961, 926 969, 926 97*, 926 970, 926 971, 926 972, 926 973, 926 974, 926 975, 926 976, 926 98*, 926 985, 926 986, 926 987, 926 988, 926 989, 926 99*, 926 990, 926 991, 926 992, 926 993, 926 994, 926 995, 926 996, 926 997, 926 998, 926 999

AR05.30-B-3831-02A

Rework valve seat ring basic bore

Engine 904.9, 906.9, 924.9, 926.9

Engine

904.9, 906.9

Engine

924.9

Engine

926.9 (except 926.942) in model 382.1 (except 382.171/176)

Engine

926.9 (except 926.95)

Engine

926.9

Test values for the valves cases

Number

Designation

Engine 904.9, 906.9

Engine 924.9, 926.9

BE05.30-B-1003-03C

Diameter (B) of the intake valve case housing in the head

Normal

mm

35,000...35,025

35,000...35,025

Repair I

mm

35,300...35,325

35,300...35,325

repair II

mm

35,500...35,525

35,500...35,525

Test values for the valves cases

Number

Designation

Engine 904.9, 906.9

Engine 924.9, 926.9

BE05.30-B-1004-03C

Diameter (B) of the exhaust valve case housing in the head

Normal

mm

40,000...40,025

40,000...40,025

Repair I

mm

40,300...40,325

40,300...40,325

repair II

mm

40,500...40,525

40,500...40,525

Test values for the valves cases

Number

Designation

Engine 904.9, 906.9

Engine 924.9, 926.9

BE05.30-B-1005-03C

Interference between the valve case and the housing in the head

Intake

mm

0,045...0,080

0,045...0,080

Exhaust

mm

0,045...0,080

0,045...0,080

Test values for the valves cases

Number

Designation

Engine 904.9, 906.9

Engine 924.9, 926.9

BE05.30-B-1008-03C

Cylinder head basic bore depth (C) for valve seat insert

Intake

mm

11,4...11,6

11,4...11,6

Exhaust

mm

11,4...11,6

11,4...11,6

Rework valve seat ring basic bore

001 589 53 21 00

Dial gage

Rework valve seat ring basic bore

1

Machine the intake and/or exhaust valve seat housing in multiple passes, determining the "G" measure for the cutting tool, until the desired finishing diameter (B) is achieved   .
If necessary, adjust the depth (C) of the housing .


B05.30-0002-02

Measurement calculation G: (B + F):

Example:

Diameter B = 35 mm (housing)

Diameter F = 10 mm (guide)

Measure G = (35 + 10): 2 = 22,5

When machining the housing, use the valve guide as the centering reference to ensure the housing concentricity relative to the valve guide.

Rework valve seat ring basic bore

2

Check the diameter (B) of the intake and/or exhaust valve seat housing with the internal diameter meter and the dial indicator.
Check the depth (C) of the housing .


Unconditionally ensure the interference between the seat and the housing, keeping the housing diameter (B) within the tolerances for each repair level.


B05.30-0004-01