It is more common for the socket head bolt to leak than the freeze plug
this should be a dealer item
as Mike said
if its covered with epoxy then your not the first to think its leaking
I would see if a replacement is available before exploratory surgery

Bob

----- Original Message -----
From: "Mike Collum" <collum@VERIZON.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, December 13, 2007 7:35 PM
Subject: Re: AMC Cylinder Head Question

> It is said that experience is what you get when you were expecting
> something else.  Well, in that I've never had one of these freeze plugs
> leak, I have no experience so share with you.
>
> Maybe someone like Boston Bob would have replacements or know where to
> get them.
>
> According to ETKA 7, the freeze plug without the drain bolt is "Called"
> Locking Cover # N 011 914 2.
>
> The one with the threads for a bolt is # 025 101 583 A
>
> The seal for a bolt is N 013 830 2
>
> The Allen key head bolt (M8X12) is N 014 706 7
>
> Of course, these are for an OEM head ... but I'm betting they're the
> same on AMC heads.  I found the seal and the bolt listed on BusDepot's
> site but not the freeze plugs (locking covers) themselves.
>>
>> Mike
>
>
> David Kao wrote:
>> Mike, you are probably right. The problem is the other one that has
>> no screw on it. I think it is still in there. But it is covered by
>> the metalic look epoxy (or something else I do not know). It has an
>> aluminum look. But it is plastic. If it does not leak maybe I should
>> not try to fix it.
>>
>> David
>>
>>
>> --- Mike Collum <collum@verizon.net> wrote:
>>
>>> I believe what you're seeing are the freeze plugs.  One isn't actually
>>> held by a screw ... those screws are there to allow draining the heads
>>> of coolant.
>>>
>>> Mike
>>>
>>>
>>>
>>> David Kao wrote:
>>>> I have a pair of used AMC heads pulled from a parts vanagon.
>>>> I am about to begin to rebuild my 84's 1.9 WBXer with these two
>>>> heads. I have a few questions about these heads before I put
>>>> them on.
>>>>
>>>> The heads have two metal caps at the bottom side of them. If you
>>>> look at the heads at their installed position the upper side has
>>>> the intake and spark plug holes. The bottom side has the two metal
>>>> caps, one is held in position by a screw and the other is in there
>>>> by itself.
>>>>
>>>> Well, one the two AMC heads has one cap that is plugged up by
>>>> some kind of epoxy that looked like aluminum. My guess is that the
>>>> original cap leaked and it was repaired. Whoever did the repair
>>>> used the epoxy to plug it up. I can not see if the original cap
>>>> is still in there or not. It seems that it did the job before I
>>>> pulled them off from the parts van. But I am really concerned if
>>>> it will eventually develop a coolant leak that will require
>>>> a tear down of the engine again.
>>>>
>>>> Any suggestions as to how to fix it correctly once for all? Is
>>>> there such metal caps available from anywhere? How is it installed?
>>>> This is the cap that is not held in position by a screw. Should
>>>> I send it to a machine shop to get it re-capped?
>>>>
>>>> BTW, the pair of AMC heads look in very good shape. There is no
>>>> crack, warpage or any visible sign of problems (except the cap).
>>>> I have lapped all the valves and they seem all seal pretty well.
>>>>
>>>> Any help is appreciated.
>>>>
>>>> David
>>>>
>>>>
>>>>
>>>>
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>>
>>
>>
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