Helpful guide for correctly installing your valves on Perkins and other engines.
Check out our chart below for torque values and valve settings:
|
Cylinder Head Torques and Valve Clearance
|
Cylinder Head Torques
|
Valve Clearance |
| Perkins EngineModel |
Intake |
Exhaust |
| 3.152-4.203 |
70 ft. lbs. |
.012 |
.012 (cold) |
| 4.203.2 |
70 ft. lbs. |
.008 |
.012 |
| 4.108 |
60 ft. lbs. |
.012 |
.012 (cold) |
| 4.154 |
85 ft. lbs. |
.012 |
.012 (cold) |
| 4.236-4.248 |
100 ft. lbs. |
.012 |
.012 (cold) |
| 4.318 |
100 ft. lbs. |
.012 |
.012 (cold) |
| 6.354 |
100 ft. lbs. |
.012 |
.012 (cold) |
| 6.354.4 (1/2) |
115 ft. lbs. |
.008 |
.018 |
| 6.354.4 (5/16) |
28 ft. lbs. |
|
|
| V8-510-540 |
125 ft. lbs. |
.012 |
.012 (cold) |
| Continental – TMD Series |
| M10 |
50-55 ft. lbs. |
.014 |
.018 |
| M12 |
90-95 ft. lbs. |
.014 |
.018 |
| All Flat Head Engines (by Bolt Diameter) |
| 3/8″ |
35-45 ft. lbs. |
Y112,F135,F163 |
.012 |
.020 |
| 7/16″ |
70-75 ft. lbs. |
F227,F245 |
.012 |
.020 |
| 1/2″ |
100-110 ft. lbs. |
M330,M363 |
.017 |
.020 |
| 9/16″ |
130-140 ft. lbs. |
B427 |
.017 |
.022 |
| All Overhead Valve Engines |
| Ford 172 / 192 |
>115 ft. lbs. |
.014 |
.016 (hot) |
| Ford 6.300 |
75 ft. lbs. |
HYD |
HYD |
| Ford 2300 |
90 ft. lbs. |
HYD |
HYD |
| GM 6.250 |
95 ft. lbs. |
HYD |
HYD |
| GM 4.153-181 |
95 ft. lbs. |
|
|
| GMC V6.305 |
70 ft. lbs. |
.012 |
.015 (hot) |
| GM 4.3L |
65 ft. lbs. |
HYD |
HYD |
| Herc G-1600 |
65 ft. lbs. |
.015 |
.015 (hot) |
| (1404 CAT) |
|
|
|
| Wauk D-155-176G |
90 ft. lbs. |
.010 |
.020 (cold) |
| Cont G-193 |
105 ft. lbs. |
.014 |
.014 (cold) |
| A/C G-153-230 |
100-110 ft. lbs. |
.015 |
.015 (cold) |
| Chry H-225 |
70 ft. lbs. |
.014 |
.026 (cold)
|
|
We hope you found this chart of torque values and valve settings helpful. Be sure to subscribe for more tech tips and diesel engine know-how with Dr. Diesel.
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