Bulletproof cooling system
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== RAD CAPS == | == RAD CAPS == | ||
| + | Radiator caps are important to the proper operation of the entire cooling system. The cap is designed to hold pressure in the system. Under pressure the coolant boils at a higher temperature than when non pressurized. Check the cap gasket for cracks and other damage. If the cap pressure spring is badly rusted replace the cap, observing the pressure stamped on the old unit, acquire one with the same pressure rating. During inspection make the that the radiator fill (where the cap lives) is clean and the sealing surfaces are undamaged. A radiator with a nicked or damaged sealing surface can be repaired by employing a metal filled epoxy to fill the imperfections. | ||
| + | Recommended steps: | ||
| + | * Sand the sealing surface to bright metal | ||
| + | * Clean the sealing area with water | ||
| + | * Dry thoroughly | ||
| + | * Mix the metal filled epoxy following manufacturers directions | ||
| + | * apply a thin bead on the sealing surface | ||
| + | * using a plastic implement smooth the bead covering damage and imperfections | ||
| + | make sure the epoxy is smooth and even. | ||
| + | * Let harden, install cap. | ||
| − | + | Note: This technique has been used on GM, VW and Porsche radiators to good effect. | |
== Thermostats == | == Thermostats == | ||
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