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Coolant Leak from the back of 318 -- Freeze Plugs?
#105066
08/14/08 10:18 PM
08/14/08 10:18 PM
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Anonymous
OP
Unregistered
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Anonymous
OP
Unregistered
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My 72 Satellite Starting leaking from what appears to be below the back of the Driver's side head. Possibly a freeze plug. 127,000 original miles. If it is the freeze plug, what are my possible solutions? How easy to get them out? Help. 
Last edited by 72SSPlus; 08/14/08 11:11 PM.
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
#105068
08/15/08 07:48 AM
08/15/08 07:48 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
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Too Many Posts
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Cincinnati, Ohio
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Quote:
How easy to get them out?
Help.
Not easy at all to get to. If it is the freeze plug then you should figire on taking the whole motor out and replace all of them, becAUSE THEY WILL BE ALL READY TO FAIL AT THIS POINT IN TIME. Easy to replace once the motor is out. Sorry for the caps. There are freeze plugs on the back of the motor too. Those are ones that leaked on my motor and all of mine were paper thin when I replaced them.
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: Challenger 1]
#105069
08/15/08 07:50 AM
08/15/08 07:50 AM
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Joined: Jan 2003
Posts: 75,004
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,004
U.S.S.A.
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Quote:
Quote:
How easy to get them out?
Help.
Not easy at all to get to. If it is the freeze plug then you should figire on taking the whole motor out and replace all of them, becAUSE THEY WILL BE ALL READY TO FAIL AT THIS POINT IN TIME. Easy to relace once the motors out. Sorry for the caps.
especially the 2 between the engine and trans .
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: buildanother]
#105073
08/15/08 11:05 AM
08/15/08 11:05 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
If it's really all original, I'd find the means to pull it out, replace all the plugs, valve stem seals, and for sure the plastic timing gear and chain set too. 
127K miles... the plastic timing gear does need a replacement too.
I took mine out on a Sat morning and put it back in on Sun and was driving it Sun nite. Knowsnothing is right, I found all kinds of gunk in the water jackets that I pressure washed out. Cleaned out my oil pan while I was at it. It's easier to remove tranny and motor at the same time. I also put a new front seal in my tranny while I was at it.
I built this motor in 1986 and installed steel freeze plugs at that time. So it took about twenty years for them to rust out. This time I replaced them with brass, so hopefully it and me will be around for another twenty years.
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: Challenger 1]
#105074
08/15/08 11:32 AM
08/15/08 11:32 AM
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Joined: Oct 2006
Posts: 7,066
portland or
new bee
Richard Cranium
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Richard Cranium
Joined: Oct 2006
Posts: 7,066
portland or
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I've posted this before,so I'll keep it short. You can pm me for more information.
We removed and replaced all the head freeze plugs from my Super Bee, and we only pulled the exhaust manifolds.
It can be done, and it's not that tough. We used a pipe clamp with a modified end. The pipe clamp is the length of the head. One end has the standard crank to tighten and loosen the thing. The modified end is a flat disk with a bolt attached to it.
1) install clamp to head with bolt pushing against the old freeze plug
2) tighten clamp until bolt pushes freeze plu 90 degrees
3) remove old freeze plug
4)center new freeze plug in hole.
5)replace the bolt on the clamp with a small socket. Install clamp so socket is centered inside the cup of the new freeze plug
6) tighten clamp, making sure plug goes in straight.
Viola! We had them in and out within 15 minutes.
*1969 383 4sp. Super Bee
*1966 Alfa Romeo Giulia Sprint GT
*1965 Porsche 356C
*2004 VW Passat Wagon
*2004 Mini Cooper S
*1967 Jaguar E-Type FHC
A mall cop is in our midst.
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: dogdays]
#105076
08/15/08 12:21 PM
08/15/08 12:21 PM
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Joined: Oct 2006
Posts: 7,066
portland or
new bee
Richard Cranium
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Richard Cranium
Joined: Oct 2006
Posts: 7,066
portland or
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oops...spelling!
Me flunk english? Thats unpossible!
*1969 383 4sp. Super Bee
*1966 Alfa Romeo Giulia Sprint GT
*1965 Porsche 356C
*2004 VW Passat Wagon
*2004 Mini Cooper S
*1967 Jaguar E-Type FHC
A mall cop is in our midst.
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: new bee]
#105077
08/15/08 12:52 PM
08/15/08 12:52 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
I've posted this before,so I'll keep it short. You can pm me for more information.
We removed and replaced all the head freeze plugs from my Super Bee, and we only pulled the exhaust manifolds.
It can be done, and it's not that tough. We used a pipe clamp with a modified end. The pipe clamp is the length of the head. One end has the standard crank to tighten and loosen the thing. The modified end is a flat disk with a bolt attached to it.
1) install clamp to head with bolt pushing against the old freeze plug
2) tighten clamp until bolt pushes freeze plu 90 degrees
3) remove old freeze plug
4)center new freeze plug in hole.
5)replace the bolt on the clamp with a small socket. Install clamp so socket is centered inside the cup of the new freeze plug
6) tighten clamp, making sure plug goes in straight.
Viola! We had them in and out within 15 minutes.
Great Idea! 
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: UCUDANT]
#105079
08/15/08 03:27 PM
08/15/08 03:27 PM
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Joined: Oct 2006
Posts: 7,066
portland or
new bee
Richard Cranium
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Richard Cranium
Joined: Oct 2006
Posts: 7,066
portland or
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Harbor freight has the stuff you will need to make one. I will try to get a photo of it online soon.
*1969 383 4sp. Super Bee
*1966 Alfa Romeo Giulia Sprint GT
*1965 Porsche 356C
*2004 VW Passat Wagon
*2004 Mini Cooper S
*1967 Jaguar E-Type FHC
A mall cop is in our midst.
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: mopars4ever]
#105081
08/15/08 04:43 PM
08/15/08 04:43 PM
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Joined: Oct 2006
Posts: 7,066
portland or
new bee
Richard Cranium
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Richard Cranium
Joined: Oct 2006
Posts: 7,066
portland or
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My experience is that you can get your fingers in there enough to rotate the thing, and work it out. I had two on the sides of the heads drop in, and I was able to carefully slide them up, turn them, and pull them out.
Needle nose pliers are useful as well.
*1969 383 4sp. Super Bee
*1966 Alfa Romeo Giulia Sprint GT
*1965 Porsche 356C
*2004 VW Passat Wagon
*2004 Mini Cooper S
*1967 Jaguar E-Type FHC
A mall cop is in our midst.
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: new bee]
#105082
08/15/08 04:46 PM
08/15/08 04:46 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,376
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: mopars4ever]
#105083
08/15/08 05:52 PM
08/15/08 05:52 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
What happens if you push the freeze plug into the head? How do you remove it? Mike
Nothing, It won't go anyplace.
If it were mine I would pull the engine and do it right and not worry anymore about it. I would also install a timing chain and gears, pull the pan and check the bearings at that milage. Not that big a job to pull the engine out of there. Couple of hours max. including a beer break.
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: MoparforLife]
#105084
08/15/08 07:33 PM
08/15/08 07:33 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
What happens if you push the freeze plug into the head? How do you remove it? Mike
Nothing, It won't go anyplace.
If it were mine I would pull the engine and do it right and not worry anymore about it. I would also install a timing chain and gears, pull the pan and check the bearings at that milage. Not that big a job to pull the engine out of there. Couple of hours max. including a beer break.
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Re: Coolant Leak from the back of 318 -- Freeze Plugs?
[Re: JohnRR]
#105085
08/15/08 08:18 PM
08/15/08 08:18 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
I am pretty sure there is a freeze plug in the back of the head , look at your passenger side head behind the altenator, that's what the back of the other head looks like.
The rear bolt on the exh manifold goes into the water passage also and can be a possible leak point if it's been messed with .
Or its the head gasket if the leak is truly at the deck surface .
Just look at the heads. The other end is the same, They don't know front from back or left from right.
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