Can loose head bolts cause overheating?
A head gasket failure may be caused by an engine overheating one too many times (as a result of a clogged radiator, coolant leak, faulty fan, etc.), but the blown head gasket can also cause the engine to overheat.
How do you calculate torque?
When you choose torque, this calculator will measure the approximate torque of an engine based on the horsepower, multiplied by 5,252 (conversion between foot-pounds and horsepower), divided by the RPM of the engine. For example, if your engine has 350 horsepower then the torque would be 367 foot-pounds, at 5,000 RPM.
How is bolt torque calculated?
Calculate required bolt torque
- normal dry: K = 0.2.
- nonplated black finish: K = 0.3.
- zinc-plated: K = 0.2.
- slightly lubricated: K = 0.18.
- cadmium-plated: K = 0.16.
What is the torque for a 10mm bolt?
Metric Recommended Bolt Torque
| Bolt Diameter (mm) | Recommended Torque (Nm) | |
|---|---|---|
| Class 8.8 | Class 10.9 | |
| 6 | 12 | 16 |
| 8 | 30 | 40 |
| 10 | 55 | 75 |
How much torque does a bolt need?
US Recommended Bolt Torque
| Size | Recommended Torque | |
|---|---|---|
| Grade 2 | 18-8 S/S | |
| 3/8″ | 15 | 22 |
| 7/16″ | 24 | 33 |
| 1/2″ | 37 | 45 |
What are the torque specs for a 5’8 bolt?
ASTM A325
| Bolt Size | TPI | Tightening Torque Range (ft lbs) (Min – Max) |
|---|---|---|
| Galv+Waxed | ||
| 1⁄2 | 13 | 50 – 58 |
| 5⁄8 | 11 | 99 – 120 |
| 3⁄4 | 10 | 175 – 213 |