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Date:         Thu, 13 Dec 2007 19:20:44 -0800
Reply-To:     Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM>
Subject:      Re: AMC Cylinder Head Question
Comments: To: David Kao <dtkao0205@YAHOO.COM>
In-Reply-To:  <834758.42713.qm@web82709.mail.mud.yahoo.com>
Content-Type: text/plain; charset="us-ascii"

Oh I get it ........'tampered' ......and in tampered with ..........? tapered, tempered, tampered.

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of David Kao Sent: Thursday, December 13, 2007 6:52 PM To: vanagon@GERRY.VANAGON.COM Subject: Re: AMC Cylinder Head Question

Sorry, if I used a wrong term. What I meant is if it was messed up by whoever did the repair of it. I think the opening when new was carefully machined before the plug was pressed in. If it was messed up a new plug may not seal it any more.

David

--- Scott Daniel - Shazam <scottdaniel@turbovans.com> wrote:

> Well, repair cylinder heads is what machine shops do. > I still wonder why you are saying 'tempered' . tapered ? > Hardened metal in the area of the plugs ? > it's an aluminum casting, there's no hardening or tempering on it anywhere I > don't believe. > > -----Original Message----- > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > David Kao > Sent: Thursday, December 13, 2007 6:27 PM > To: vanagon@GERRY.VANAGON.COM > Subject: Re: AMC Cylinder Head Question > > I checked it for sign of leak very carefully. There was no leak I think. > What I am concerned about is it may become worse once the old plug is > removed the and hole is tempered. A machine shop should be able to take > a good care of it I hope. > > David > > --- Bob Donalds <donalds1@VERIZON.NET> wrote: > > > JB weld > > will not stick to anything but a freshly ground surface can you see it > leak > > ? > > Bob > > > > ----- Original Message ----- > > From: "Scott Daniel - Shazam" <scottdaniel@TURBOVANS.COM> > > To: <vanagon@GERRY.VANAGON.COM> > > Sent: Thursday, December 13, 2007 8:42 PM > > Subject: Re: AMC Cylinder Head Question > > > > > > You could also have a machine shop pressure test the heads. > > Or you could put more epoxy on top of what's there, like JB weld. > > A picture would be fun to see. > > I never remove those drain screws. > > Scott > > > > -----Original Message----- > > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of > > Mike Collum > > Sent: Thursday, December 13, 2007 4:35 PM > > To: vanagon@GERRY.VANAGON.COM > > 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 > > >>> > > >>> > > >>> > > >>> > > > ____________________________________________________________________________ > > ________ > > >>> Looking for last minute shopping deals? > > >>> Find them fast with Yahoo! Search. > > >> http://tools.search.yahoo.com/newsearch/category.php?category=shopping > > > > > > > > > > > > > > > ____________________________________________________________________________ > > ________ > > > Be a better friend, newshound, and > > > know-it-all with Yahoo! Mobile. Try it now. > > http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ > > > > > > > > > > ____________________________________________________________________________ > ________ > Never miss a thing. Make Yahoo your home page. > http://www.yahoo.com/r/hs > >

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