Table of Contents
Where is the radiator drain valve?
Hello, the radiator drain plug will be a the bottom edge of the radiator, facing the engine (passenger side). If you drain the coolant, be sure to catch it with a pan of some sort, and properly dispose of it.
What is the radiator petcock?
The petcock is a small bolt right under the radiator and easy to spot as modern radiators do not have any other holes underneath them that would require bolts. Usually, the underside of a car radiator is covered by a plastic panel which can be easily removed to reveal the radiator drain petcock.
How do you release a petcock?
If there are two little screws holding a metal plate on the front of the petcock, loosen them before unscrewing the petcock from the gas tank. Pull the selector knob off. Using something pointy, gentle pry the four holed rubber grommet out of the petcock. Wash the petcock out with clean gasoline.
Where is my coolant drain plug?
The drain will be located on the rear of the block, near the bottom but not level with the oil pan. Typically they are located closer to the flywheel housing then the outside of the engine pan and will look like large bolts set into the block which are not holding anything in place.
Where would you find the petcock valve in a cooling system?
A radiator drain petcock is usually located above the bottom of the radiator. So even if you can open it, you’re not draining the radiator completely. That’s why shops always remove the lower radiator hose. That drains the entire radiator AND most of the coolant from the engine.
What is lockshield valve?
Lockshield valves are the covered valves on a radiator, usually by a plastic cap which prevents them from being accidently altered. Once this has been temporarily removed, lockshield radiator valves can be adjusted by turning the spindle to control how much water stays in or flows out of the radiator.
Where to install a Model 70 auto drain valve?
The Model 70 Auto Drain Valve is recommended to be installed in a 1” NPT pipe tee fitting (See Fig “A” for typical installation). The pipe tee shall be located in a 1” or 1 ¼” water well drop pipe between the submersible pump and ground level.
How does an automatic air release valve work?
HOW DO THEY WORK? Automatic air release valves are installed at the highest points in a pipeline where air naturally collects. Air bubbles enter the valve and displace the liquid inside, lowering the liquid level. When the level drops to where it no longer buoys the float, the float drops.
How do you release a stuck water valve?
When you have removed the head you should, in most cases. See a pin sticking out from the body of the valve. A gentle tap with the handle of a spanner or wrench should release this nicely. Most pump valves can be released by rotating the shaft, which is usually found under the central cover screw on the head of the pump.
Can a snifter valve keep water from freezing?
If you find water leaking out of the snifter valve it needs repair or replacement. Rasmussen points out that in Northern Minnesota and on water systems in other very cold climates, the system’s ability to drain water back into the well, leaving just air in the higher sections of well piping can help protect a well system from freezing.