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.
Knowledge is power. To help our customers, we share tech tips summarizing some of our opinions, knowledge and information of interest that we have gathered since 1916 when Foley Engines opened for business. If you have any questions or comments, go to “Ask Dr. Diesel™” where you can pose questions about engines, clutches, exhaust scrubbers, etc.
