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[Fot] Cylinder head freeze plug help

Subject: [Fot] Cylinder head freeze plug help
From: gblake58tr3 at icloud.com (Greg Blake)
Date: Wed, 02 May 2018 20:18:34 -0500
References: <007301d3e0df$0f519510$2df4bf30$@comcast.net> <54F1DAC5-4973-4B59-BE65-5429307EF28D@gmail.com> <004701d3e141$c94bd3b0$5be37b10$@comcast.net> <14957666.34523972.1525186055122.JavaMail.zimbra@embarqmail.com> <C198A28C-C53F-4BEB-8B7A-1F1C425C2E8D@gmail.com> <1578549516.3226855.1525272001739@mail.yahoo.com> <742645101.5219.1525273969200@connect.xfinity.com> <A50F11BA8510420091B9DCF1E56E4E4A@VlackTK121647>
I had one pop out on me at the Sunday afternoon race of the Kastner cup at Road 
Atlanta a few years ago. I was bummed to miss out on the remaining laps so 
figured I did not want that to happen again. 

When I pulled the head, I drilled and tapped to 10-32 holes each side of the 
rear freeze plug. After installing the new plug, I installed a bar that spans 
the plug and bolts to the head using the two trapped holes. In the center of 
the bar is a weld nut that I run a bolt through to put a little pressure on the 
freeze plug. Probably over kill, but Won?t be popping again. 

Sent from my iPhone

> On May 2, 2018, at 12:30 PM, Jerry Van Vlack via Fot <fot at autox.team.net> 
> wrote:
> 
> It goes without saying that you should coat the edges with a good epoxy 
> before you bonk it.
> JVV
>  
> From: JAMES GRAY via Fot
> Sent: Wednesday, May 2, 2018 11:12 AM
> To: Jack Wheeler
> Cc: FOT Triumph
> Subject: Re: [Fot] Cylinder head freeze plug help
>  
> Jack,
> 
> The old freeze plug was found last night under my catch tank at the battery 
> tray. It didn't have much of a ding in it
> 
> so I suspect it could have been flattened more/better when it was first put 
> in.
> 
> Last night I was able to clear stuff as required to drill a 1/2" hole in the 
> firewall directly behind the plug.
> 
> I already have a length of 1/2" solid round bar, tapered/rounded at the end 
> in the hole just waiting for the new plug to arrive.
> 
> The round bar runs right under the dash. I'll be able to knock it in from the 
> cockpit with a 3 pounder.
> 
> The car was running better than ever when it went, compression is at 200 psi 
> on all four so at the moment
> 
> I don't have any reason to believe there are other problems. No evidence at 
> all of water in the oil or cylinders.
> 
> However, once the plug is replaced and running again there will be detailed 
> inspections once it's back up to running temp.
> 
> jim g
> 
>> On May 2, 2018 at 8:40 AM Jack Wheeler <jwheeler1947 at yahoo.com> wrote:
>> 
>> Hi Jim.  Consider this.  Pulling the head may give you the most correct fit, 
>> and also may be quicker, all things considered.  When I was racing, and had 
>> to pull the head at the race track, I could get it off and back on, new head 
>> gasket, and nuts torqued, in under an hour.  By the time you make clearance 
>> under the dash, and drive the plug in, possibly not aligned correctly, I'll 
>> bet you will have over an hour invested.  Good luck.
>>  
>> Jack
>> 
>> PS.  have you determined what caused the freeze plug to blow out?  The one 
>> time I had that happen at the race track, it was the result of a major 
>> cylinder head failure.  You may be looking at a bigger problem than just the 
>> freeze plug.
>>  
>>  
>> On Tuesday, May 1, 2018, 8:53:42 PM EDT, Duncan Charlton via Fot <fot at 
>> autox.team.net> wrote:
>>  
>>  
>> I used one of those expandable core plugs on a BMW 2002 and left it in for 
>> the next 60,000 miles with no sign of leaks.
>>  
>> Duncan
>> 
>>> On May 1, 2018, at 9:47 AM, William T newman <mnewman at embarqmail.com> 
>>> wrote:
>>>  
>>> I've used a neoprene plug at the track to get by until I could pull the 
>>> head.
>>> Bill Newman
>>> #44 GT6
>>>  
>>> ----- Original Message -----
>>> From: Jim Gray via Fot <fot at autox.team.net>
>>> To: 'Duncan Charlton' <duncan.charlton54 at gmail.com>, 'fot' <fot at 
>>> autox.team.net>
>>> Sent: Tue, 01 May 2018 07:44:38 -0400 (EDT)
>>> Subject: Re: [Fot] Cylinder head freeze plug help
>>>  
>>> Duncan,
>>> 
>>> I think that?s where I?m going next, the freeze plug is just about in line 
>>> with
>>> 
>>> the bottom of the dash or close. The good thing is it blew the old plug 
>>> completely out.
>>> 
>>> I just need to knock a new one in.
>>> 
>>> I?m pretty sure I can go under the dash and through with a piece of ? or 
>>> even ?? round
>>> 
>>> bar about 2? long which I can scrounge at work.
>>> 
>>> I?ll have to remove some stuff but still better than pulling the head.
>>> 
>>> jim
>>> 
>>> 
>>>  
>>> From: Duncan Charlton <duncan.charlton54 at gmail.com> 
>>> Sent: Tuesday, May 1, 2018 5:36 AM
>>> To: fot <fot at autox.team.net>; Jim Gray <toodamnfunky at comcast.net>
>>> Subject: Re: [Fot] Cylinder head freeze plug help
>>> 
>>> 
>>>  
>>> Can you drill a hole through the firewall and drive it out or yank it out 
>>> that way?
>>> 
>>> 
>>>  
>>> Duncan
>>> 
>>>  
>>> 
>>>  
>>> On Apr 30, 2018, at 6:57 PM, Jim Gray via Fot <fot at autox.team.net> wrote:
>>> 
>>> 
>>>  
>>> FoT
>>> 
>>> I was wondering if anyone has a clever method of putting in a cylinder head 
>>> freeze plug without removing the head.
>>> 
>>> I was instructing at our drivers school this past weekend when it blew out.
>>> 
>>> I may have enough room between the firewall to use a short blunt air chisel
>>> 
>>> but I have my doubts so if anyone has a better one please let me know.
>>> 
>>> Thanks as always,
>>> 
>>> jim g
>>> 
>>> 
>>>  
>>> _______________________________________________
>>> fot at autox.team.net
>>> 
>>>  
>>> http://www.fot-racing.com
>>> 
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>> 
>>  
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>> 
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>> 
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