[AT] Freeze plugs

[farmallgray at aol.com]

Quote; (which are really "casting core plugs")

And they have nothing to do with freezing. They are there because of being required for the casting process.
I had always heard the flat type called "expansion plugs" because of being expanded into place. The type with sides werecalled "cup type expansion plugs" even though that also isn't a totally accurate description.

Todd MarkleSpring Mills, Pa.

-----Original Message-----
From: Indiana Robinson <robinson46176 at gmail.com>
To: Antique Tractor Email Discussion Group <at at lists.antique-tractor.com>
Sent: Fri, Nov 8, 2019 9:32 am
Subject: Re: [AT] Freeze plugs

As I was growing up the domed "freeze plugs" were all called "Hubbard" plugs. Most had the company logo or at least the name stamped in them. I never knew exactly what to call the cup shaped plugs. I had heard the name Welch plugs but apparently both types are Welch plugs. I'm not sure why, neither are grape flavored. I have called the cup plugs "skirted" but that is probably just something I made up to avoid calling them "thingies".  :-)This thread prompted me to Google several questions about names of these items. Dang... You could spend a day just reading all of the terminology about them which are really "casting core plugs" or you can pick from a whole list of names.  :-)There is a lot of good info available on leak free installation which also includes just using Barrs-Leak...  :-)

.

On Fri, Nov 8, 2019 at 7:52 AM David Myers <Walking_Tractor at yahoo.com> wrote:

Spencer, I am assuming you are using cup style plugsas opposed to the standard ‘coined’ variety.   If so then yes you are correct.  I very rarely have had the pleasure of using the cupped ones and grew up with the ‘coined’ style which Is my goto style.  Again clean bore, apply the smallest amount of (insert sealant of choice here, mine is ultra copper), and gently tap directly in the center with a suitable hammer.   You can use any type of a driver as long as it is smooth and fills the hole decently.   
Glad to see someone getting round-tuits. My list just keeps getting longer and longer 

Sent from my iPhone

> On Nov 7, 2019, at 10:10 PM, Spencer Yost <spencer at rdfarms.com> wrote:
> 
> So lining up the list of things I need to work on this winter. I may have mentioned the throttle linkage on my Ford, but that turned out to be a very minor thing. So that is off the list.
> 
> However a new freeze plug is in order for the John Deere 430V. One of the freeze plugs on the engine showed evidence of leaking in the past, but was not leaking when I got it.  
> 
> After putting it through its paces this year raking hay and what not it is now leaking. I must admit I do not have a 100% success rate with freeze plug installation.  
> 
> My procedure is to make sure the bore is clean with a little bit of Emery cloth and then I put copper head gasket sealant around the outside edge of the freeze plug. I then press using the a socket or something that will find purchase on the very outer rim of the freeze plug. This procedure works virtually all of the time but have had a couple seep. 
> 
> What is everyone else’s procedure?
> 
> Spencer
> 
> Sent from my iPhone
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-- 
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Francis Robinson
aka "farmer"
Central Indiana USA
robinson46176 at gmail.com








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