Little Emigration
of Freeze Plugs
Automotive freeze plugs are round metal plugs installed in the casting holes in engine blocks. These plugs are thin and sometimes rust down, allowing engine coolant to leak. When this happens, the experienced freeze plug must be removed and replaced with a inexperienced one. The installation of engine block heaters besides requires the Emigration of a freeze plug. The dispute is, these plugs are pressed in and are recessed in the block.
Push-In Method
Screw Method
When access allows, the beyond compare design to remove a freeze plug is to pull it from the casting gap. A dent puller or slide hammer with a screw mark is screwed in a pre-drilled gap in the freeze plug and used to remove the plug.Many automotive mechanics simply handle a hammer and punch to operate the decrepit plug wrapped up the casting gap and into the block. They then turn the plug 90 degrees so that it can be grasped with pliers and pulled from the gap. This works most of the future, nevertheless on context Testament fall into the cooling passages and be impossible to retrieve. While not the peak outcome, it isn't a exceeding hitch to freedom it in accommodation provided it in truth cannot be retrieved.
A credible box with this design occurs when the plug has rusted to be authentic thin and the screw simply pulls from the metal. For this reason, it is best to drill the hole near the outer edge of the freeze plug where the metal is likely to be strongest.
Prying Method
The third method to remove a freeze plug is to drill a larger hole in the plug and insert a screwdriver point in the hole. Using the edge of the casting hole as a fulcrum, the mechanic simply pries the freeze plug out of the hole. If the center of the plug has rusted through, drilling the hole isn't necessary and the screwdriver is inserted directly through the freeze plug.
