Engine Leak, Freeze Plug? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep CJ Forum > Engine Leak, Freeze Plug?

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineRockridge 4WD IS Taking Zone Offroad Suspension Lift Kits Rough Country Jeep Suspension Deals at Rockridge 4WD!

Reply
Unread 10-28-2013, 09:15 PM   #1
Plastixrecycler
Junior Member
 
Join Date: Oct 2013
Location: Austin, Texas
Posts: 22
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  
Plastixrecycler is offline   Reply With Quote
Unread 10-29-2013, 03:48 AM   #2
keith460
Jeep. There's Only One
 
keith460's Avatar
1984 CJ7 
 
Join Date: Jan 2007
Location: Doylestown, PA
Posts: 4,507
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.

__________________
.
1984 CJ-7 Renegade
__________________

Restoration Thread:http://www.jeepsunlimited.com/forums...d.php?t=434226
keith460 is offline   Reply With Quote
Unread 10-29-2013, 01:24 PM   #3
Plastixrecycler
Junior Member
 
Join Date: Oct 2013
Location: Austin, Texas
Posts: 22
Your pic helps a ton. thank you. Would you recommend replacing the other plugs as well or just as needed?
Plastixrecycler is offline   Reply With Quote
Unread 10-29-2013, 01:30 PM   #4
gosupes
Registered User
1986 CJ7 
 
Join Date: Jun 2004
Location: Monroe, WA
Posts: 1,518
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.
__________________
1986 CJ7, 4.2 w/4.0 head, TFI-HEI hybrid ignition, Clifford manifold w/Holley 390 w/cold air intake, OBA, 4.5" lift, Woody CV shaft and Tattons in front, 4.10 gears - lunchbox in front, Truetrac in the back, twin-sticked, blower upgrade for running topless, trying to keep it simple.

It's just a Jeep, and if you don't wheel it once in a while, it's not even that.
gosupes is offline   Reply With Quote
Unread 11-01-2013, 02:35 PM   #5
Plastixrecycler
Junior Member
 
Join Date: Oct 2013
Location: Austin, Texas
Posts: 22
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?
Plastixrecycler is offline   Reply With Quote
Unread 11-01-2013, 03:47 PM   #6
CSP
Registered User
 
Join Date: Aug 2002
Location: Colorado
Posts: 11,215
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.
CSP is online now   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.