Cylinder Head Core Thickness AcceptanceL@wton2019-03-07T20:10:44+00:00
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| Small Cam – N-14 | Min. 4.35″ |
| L-10 | Min. 3.925″ |
| 4 and 6 BT | Min. 3.725″ |
| 3406 A and B | Min. 4.420″ |
| 3406 E |
Min. 4.725″ |
| 71 and 92 | Min. 3.550″ |
| Series 60 | Min. 6.490″ |
Cummins B.C. Valve SettingsL@wton2019-03-07T20:10:44+00:00
| Cummins B.C. Valve Settings | |
| Intake .011
Exhaust .023 5″ Inch lbs. Valves Injector A 5 3 B 3 6 C 6 2 A 2 4 B 4 1 C 1 5 |
Cummins B.C. Torque Specs.L@wton2019-03-07T20:10:44+00:00
| Head Bolt: 310 Ft. lbs.
Mains: 1 1/2″ 310 Ft. lbs 1 1/8″ 265 Ft. lbs Rods: 150 Ft. lbs |
3208 Torque SpecsL@wton2019-03-07T20:10:45+00:00
| Torque Specs | |
| Mains | 35 lb. ft. + 120 deg. = 2 flats |
| Rods | 35 lb. ft. + 60 deg. = 1 flat |
| Head |
60 / 100 lb. ft. / 3/8 – 35 lb. ft. |
| Rocker Shafts |
25 lb. ft. |
| Valve Clearance |
Int .015 |
| Exh .025 | |
3406 EL@wton2019-03-07T20:10:45+00:00
| Valve Adjustment | No. 1 TDC | Intake | 1,2,4 |
| Intake – .015 | Exhaust | 1,3,5 | |
| Exhaust – .030 | No. 6 TDC | Intake | 3,5,6 |
| Exhaust | 2,4,6 | ||
| Inj. Adjustment | No. 1 TDC | 3,5,6 | |
| Turn 360 deg. | 1,2,4 | ||
| Jake – Slave Piston Lash Setting | |||
| 435 H.P. | .030 in. | ||
| 410 H.P. | .027 in. | ||
3406 E Torque SpecsL@wton2019-03-07T20:10:45+00:00
| Mains | 200 lb.ft + 120 degrees |
| Rods | 70 lb. + 90 degrees |
| Head | 350 lb |
| Jakes | (80 lb. bolts) (60 lb. nuts) |
| Injector | 46 lb |
3406 B Torque SpecsL@wton2019-03-07T20:10:46+00:00
| Mains | 190 + 10 lb.ft + 120 degrees |
| Rods | 65 lb.ft + 120 degrees |
| Head | 345 lb.ft / 3/8 bolts = 35 lb.ft |
| Jakes | 100 lb.ft / 48 lb.ft |
| Injector Retainer | 40 lb.ft |
| Fuel Line hats | 35 lb.ft |