1. |
Remove radiator or reservoir cap. |
2. |
Fill radiator and overflow to proper
level with coolant. |
3. |
Inspect overflow tube and overflow
bottle for dents, kinks, or internal obstructions. |
4. |
Wipe out inside of filler neck. Inspect
lower inside sealing seat of filler neck for nicks, dirt and solder
bumps. |
5. |
Inspect cams on outside of filler neck.
If cams are bent down or up, seating of pressure cap valve and tester
seal will be affected. If cams are damaged, have filler neck replaced
by a reputable radiator repair service facility. |
6. |
Attach a radiator pressure tester and
rotate tester head until locking ears contact stops on radiator. |
7. |
Operate pump until indicator on gauge
reaches just beyond color band for recommended pressure for vehicle,
Fig. 1. |
8. |
If pressure drops, inspect hoses, radiator
or water pump for leaks. If no external leaks are found and pressure
drops, inspect heater core, cylinder block and head. |
9. |
Once leak has been detected repair
system as required. |
|