Dodge Omni/Horizon/Rampage 1978-1989 Repair Guide

Freeze Plugs

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REMOVAL & INSTALLATION



  1. Drain the cooling system.
  2.  
  3. Using a drift and a hammer, strike the bottom edge of the cup plug.
  4.  



Click image to see an enlarged view

Fig. Fig. 1 Using a punch and hammer, the freeze plug can be loosened in the block

  1. With the plug rotated, grasp firmly with pliers or an equivalent, and remove the plug.
  2.  
  3. Fig. 2 After the plug is loosened, it can be removed from the block
  4.  


WARNING
Do not drive the plug into the casting, restricted cooling can result and cause serious engine problems.

To install:

  1. Thoroughly clean the inside of the plug hole in the cylinder block or head. Be sure to remove any old sealer.
  2.  
  3. Lightly coat the inside of the plug hole with Loctite® or an equivalent. Make certain the new plug is clean before insertion.
  4.  
  5. Using a drive tool, insert the plug into the hole so that the sharp edge of the plug is at least 0.02 in. (0.5mm) inside the chamfer.
  6.  
  7. It will not be necessary to wait for curing of the sealant. The cooling system can be refilled and the vehicle driven immediately.
  8.  

 
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