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
>>>
>>>
>>> Donate: http://www.team.net/donate.html
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>>>
>>
>>
>> _______________________________________________
>> fot at autox.team.net
>>
>> http://www.fot-racing.com
>>
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>>
>>
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>
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