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What is the difference between freeze plugs expansion plugs and core plugs?
Wiki User
∙ 14y ago
A Freeze plug is another name for core plug or expansion plug (commonly referred tto as a"frost plug.") Expansion plugs are a subset of the plugs on a car engine cylinder block or cylinder head. A usual plug is a thin, domed, disc of metal which fits into a machined hole in the casting and is normally put in by striking or pressing the center to expand the disc. A real freeze plug is an expansion plug located in the side of an engine block that is supposed to protect the block against freeze damage. When Water freezes it expands, and if the coolant does not have enough antifreeze protection it can freeze and crack the engine block. The freeze plugs are supposed to pop out under pressure to relieve the pressure on the block. On many engines the plugs could have been used where sand cores have been held. The sand cores are used in the casting process to form internal cavities in the engine block or cylinder head, for cooling water for example, and so should really be referred to as core plugs. On some Freeze plugs a variety of block heater called a "freeze plug heater" can be installed, replacing the freeze plugs, to warm the engine before start up.
Wiki User
∙ 14y ago
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Where are the freeze plugs or expansion plugs located at on a 1987 Trooper 2.3 Liter with manual transmission?
freeze plugs are located along both sides of engine block and also on the rear of block behind the flywheel. freeze plugs are also located in the heads
Where are Honda Passport freeze plugs?
The freeze plugs on a Honda Passport are located along the front of the engine block. They allow for expansion in the event the coolant freezes to prevent cracking.
How do you replace freeze plugs between the motor and transmission on a 1997 Ford Taurus?
how do you replace the freeze plugs between the transmision and motor on a 1997 f150 5.4
Are freeze plugs important to replace?
Freeze plugs are located on the sides of the engine block to allow for the expansion of the coolant if it should freeze. Without them the engine block could crack. They do not normally have to be replaced unless they begin to leak from corrosion or external damage.
Where are the freeze plugs on a 3.8 Chrysler?
There are freeze plugs on the left, right, and rear.
How many freeze plugs does the heads of a 350 engine have?
The heads themselves have NO freeze plugs in them. But the block/engine has 8 freeze plugs in it.
What is the difference between one pin and two pin spark plugs?
what is the difference between dual and single pin spark plugs
Are there freeze plugs on the radiator on a 2001 dodge Dakota?
No, the freeze plugs are on the engine.
How many freeze plugs on a 1992 ford ranger?
There are six freeze plugs
Why is water antifreeze coming out between block and transmission on 1973 350?
There is 2 freeze plugs between the rear of the engine and the transmission. The freeze plugs are in the back of the engine block. Do not bother the big plug that is in the center of the block, That is the cam plug NOT A FREEZE PLUG. YOu will either have to pull the transmission are the engine to replace those 2 plugs.
Where are the freeze plugs on a 1996 Chevy S-10?
There are freeze plugs on each side of the block,their are also freeze plugs on the front and back of the block.
Where is freeze plug located on 91 ford explore?
Freeze (Expansion) plugs are located in the Engine cooling system. There is no specific location where they must be. They can be installed in the block, cylinder heads, and often in both locations.
