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Unread 02-21-2011, 11:09 AM   #1
Goalie990
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How to replace freeze plugs?

My sisters jeep is leaking coolant out of some of the freeze plugs. I have not see what ones yet but I want to ask you guys what it takes to replace them. I am mechanically inclined and can replace them but want to know if you have to remove the motor or what? Any info would help.

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Unread 02-21-2011, 11:14 AM   #2
athos76
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Last time I replaced a freeze plug, we soaked it in PB blast for a bit to loosen it, then ran the engine to warm everything up, more PB and a little torch action. Then using a good quality hex socket and some valve grinding compound on the tip, tap it in with a hammer and slowly loosen it. If it gets too tight, PB and torch it again. When you put it back in, a little Tite Seal or non hardening gasket compound will do wonders
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Unread 02-21-2011, 11:19 AM   #3
Goalie990
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All that to get a freeze plug out? I figured you could just stab it with some thing and yank it out. Was just wondering about the location of them and how hard they are to get to.
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Unread 02-21-2011, 12:01 PM   #4
JeffBowser
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I had my rear freeze plug replaced a few years back. Went from a quick one hour job to an all day job when they had trouble getting the new one to seal. They ended up going through a couple of them, and using a non-hardening compound. It was hard to get to, but they managed without pulling the engine.
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Unread 02-21-2011, 12:17 PM   #5
athos76
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D'oh... Freeze plug that took that amount of work was on a Turbo Diesel... Forgot heeps have the other kind...


Yea, stab it and pull it out...
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Unread 02-21-2011, 12:24 PM   #6
Goalie990
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Just wondering but what diesel took that long? My cummins is the same as the jeep. I put billet freeze plugs in my cummins. How many freeze plugs are there total on the jeep and what are the locations?
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Unread 02-21-2011, 01:17 PM   #7
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5 along the driverside under the manifolds and 2 in rear and 1 on the head.
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Unread 02-21-2011, 01:18 PM   #8
Goalie990
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So with the manifold off you should be able to get to the one on the side and i hear to use a rubber expanding plug for the rear if I dont want to pull the motor. What size rubber plug for the rear?
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Unread 02-21-2011, 01:29 PM   #9
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Quote:
Originally Posted by Goalie990 View Post
My sisters jeep is leaking coolant out of some of the freeze plugs. I have not see what ones yet but I want to ask you guys what it takes to replace them. I am mechanically inclined and can replace them but want to know if you have to remove the motor or what? Any info would help.
It might also help to know the year and engine.
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Unread 02-21-2011, 01:36 PM   #10
Goalie990
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opps its a 6cylinder and its a TJ donno the exact year id have to ask.. i think 98 or 99. They are the same for quite some time tho right?
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