[AT] OT: Rosebuds! The oxi-acetylene kind...

Fri Nov 15 11:41:05 PST 2013

I have to agree with Tom as far as building a fire in the case to heat parts 
to free them up.  That is, at best, a desperation approach.  Loosening 
frozen connections depends on differential heating, getting the outer part 
hot quickly so that it expands more than the inner one.  That's one of the 
reasons an inadequate heat source doesn't seem very effective, the slow 
heating allows the heat to transfer to the inner part and expand it as well 
as the outer one.  With the charcoal fire the whole assembly will heat 
uniformly and mostly make your efforts meaningless.

----- Original Message ----- 
From: "Tom" <tmartin at xtra.co.nz>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Friday, November 15, 2013 1:32 PM
Subject: Re: [AT] OT: Rosebuds! The oxi-acetylene kind...

>
> That aside, the very idea of heating that way, strikes me of someone 
> rather bereft
> of mechanical aptitude and knowledge/training.
>
> Tom
>
>
>
>>________________________________
>> From: charlie hill <charliehill at embarqmail.com>
>>To: Antique tractor email discussion group <at at lists.antique-tractor.com>
>>Sent: Saturday, 16 November 2013 1:19 AM
>>Subject: Re: [AT] OT: Rosebuds! The oxi-acetylene  kind...
>>
>>
>>Possibly Tom. I really don't know for sure about that. Just
>>know what I've seen done and what I've done. As for the
>>effect on the temper of the steel and the metallurgy, I won't
>>argue with you about that. You may well be correct.
>>However, they can be heat treated again.
>>
>>Charlie
>>
>>-----Original Message----- 
>>From: Tom
>>Sent: Friday, November 15, 2013 1:03 AM
>>To: Antique tractor email discussion group
>>Subject: Re: [AT] OT: Rosebuds! The oxi-acetylene kind...
>>
>>Only one problem, Charlie, the gear teeth will be the first to heat.
>>So they will lose their temper before the hubs will be hot enough to
>>free on the shafts.
>>
>>Tom
>>
>>
>>
>>
>>
>>>________________________________
>>> From: charlie hill <charliehill at embarqmail.com>
>>>To: Antique tractor email discussion group <at at lists.antique-tractor.com>
>>>Sent: Friday, 15 November 2013
> 12:43 PM
>>>Subject: Re: [AT] OT: Rosebuds! The oxi-acetylene kind...
>>>
>>>
>>>Tom I don't think you have to get them that hot in terms of max temp.
>>>You just have to get enough heat into the mass of metal to make the metal
>>>expand and break the joint loose. When you have a big mass of metal it
>>>takes
>>>a lot of BTU's.
>>>
>>>Charlie
>>>
>>>-----Original Message----- 
>>>From: Tom
>>>Sent: Thursday, November 14, 2013 6:27 PM
>>>To: Antique tractor email discussion group
>>>Subject: Re: [AT] OT: Rosebuds! The oxi-acetylene kind...
>>>
>>>One would have to wonder how hard the gears & shafts were after that
>>>experience!
>>>
>>>Tom
>>>
>>>
>>>
>>>
>>>
>>>>________________________________
>>>> From: Mike <meulenms at gmx.com>
>>>>To: Antique tractor email discussion group 
>>>><at at lists.antique-tractor.com>
>>>>Sent: Friday, 15 November 2013 12:05 PM
>>>>Subject: Re: [AT] OT: Rosebuds! The oxi-acetylene kind...
>>>>
>>>>
>>>>Interesting that you would bring that up Charlie, I was watching RFD-TV
>>>>the other night and they were interviewing a guy
> that had restored Power
>>>>Horse tractors.. Parts are apparently very hard to get for those
>>>>tractors, you either need to make them or have a parts tractor. Anyway,
>>>>he said when he got it the transmission gears were seized up, so he
>>>>filled the transmission with charcoal briquets and let it burn, same
>>>>type of idea. Those are neat little tractors by the way, made to be
>>>>controlled just like a horse using reins to control the tractor via two
>>>>levers.
>>>>Mike M
>>>>
>>>>On 11/14/2013 7:22 AM, charlie hill wrote:
>>>>> Dave if the part is such that you can do it without messing something
>>>>> else
>>>>> up
>>>>> you might find you have better
> success, and cheaper, by just building a
>>>>> big
>>>>> fire and throwing the part in the bed of coals for a while.
>>>>>
>>>>> Charlie
>>>>>
>>>>> -----Original Message-----
>>>>> From: Dave Johnson
>>>>> Sent: Thursday, November 14, 2013 12:31 AM
>>>>> To: at at lists.antique-tractor.com
>>>>> Subject: [AT] OT: Rosebuds! The oxi-acetylene kind.....
>>>>>
>>>>> I'm pretty ok with cutting & brazing, but have never used a rosebud to
>>>>> heat
>>>>> something, and my experience today has me scratching my head.
>>>>> The project at hand is freeing up a cast iron wheel hub, stuck on a
>>>>> keyed
>>>>> 1"
>>>>> shaft. This is on an old Gilson / MW garden tractor transmission.... 
>>>>> the
>>>>> idea is to liberate a set of 4 of these hubs to make dual adapters for
>>>>> use
>>>>> on another tractor with a FEL.
>>>>>
>>>>> I have soaked it for quite some time and have a puller tensioned on 
>>>>> it,
>>>>> but
>>>>> it's not moving.... so now it's time for a little heat.
>>>>>
>>>>> I bought a new victor 8-MFA rosebud and lit it off as I would the 
>>>>> torch,
>>>>> but
>>>>> when I try to get a blue flame, it flames out with a pop!
>>>>>
>>>>> What's going on here? Do I not want a hot blue flame, or do I simply
>>>>> need
>>>>> to
>>>>> feed a lot more of both gases to the torch? Or?? Any insight into 
>>>>> these
>>>>> things would be appreciated!
>>>>>
>>>>>   btw, I'm on digest, so it'll take a day for me to respond (:<((
>>>>>
>>>>>
>>>>> Dave in Gilroy, CA
>>>>> webguydave at yahoo.com
>>>>> _______________________________________________
>>>>
>>>>
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