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Unread 10-28-2013, 10:15 PM   #1
Plastixrecycler
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Engine Leak, Freeze Plug?

We filled our radiator with water and after the engine was full it started leaking water out of the side. We've looked for diagrams of the engine to determine if this is a freeze plug located on the block below the manifold. Below are pictures of the engine block where the leak is located. Please confirm if you feel this is a freeze plug.

Engine: 258 inline 6
1985 Jeep CJ7

20131027_135430.jpg   20131027_135358.jpg  
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Unread 10-29-2013, 04:48 AM   #2
keith460
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Looks like one of the smaller freeze plugs on the drivers side is leaking.

Drain the coolant some and replace with new one. Apply sealant around the edges before installing the new plug.

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Unread 10-29-2013, 02:24 PM   #3
Plastixrecycler
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Your pic helps a ton. thank you. Would you recommend replacing the other plugs as well or just as needed?
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Unread 10-29-2013, 02:30 PM   #4
gosupes
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If it was me, I would replace as many as I could easily get to. If one was rotten, the others probably are not far behind.
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Unread 11-01-2013, 03:35 PM   #5
Plastixrecycler
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Quote:
Originally Posted by keith460 View Post
Looks like one of the smaller freeze plugs on the drivers side is leaking.

Drain the coolant some and replace with new one. Apply sealant around the edges before installing the new plug.

Is there a recommended way of removing the freeze plugs to ensure we don't get anything inside the cooling jacket? Should we replace all of them in that area? The others look like they're in good condition. What type brand gasket sealant should I use when we install the new plugs?
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Unread 11-01-2013, 04:47 PM   #6
CSP
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Knock the top part of the plug into the hole with a punch. Do it just enough to expose an edge on the bottom of the plug that you can grab with pliers. Pry it out with the pliers.

Just use common RTV to seal the edges of the new one.
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