[Spridgets] penetrating oils-

Lester oldsaabguy at comcast.net
Mon Apr 13 19:51:28 MDT 2009


hmm.. mine is only a '74 but not resto needed on it.. one owner since  
new, Competition  MK II

Lester


On Apr 13, 2009, at 5:39 PM, Brad Fornal wrote:

> I am currently trying to bring a 1971 Raleigh Grand Prix back to  
> life. The 5
> speed cassette on the rear wheel is frozen solid. I will be trying  
> this home
> brew tonight, to see if I can get any decent results.
>
> On Mon, Apr 13, 2009 at 4:37 PM, Deikis, John G <John.Deikis at va.gov>  
> wrote:
>
>> Regarding a recent string, I thought this was of some interest.
>>
>> Machinist's Workshop magazine actually tested penetrants for break  
>> out
>> torque on rusted nuts. Significant results! They are below, as  
>> forwarded
>> by an ex-student and professional machinist, Bud Baker.
>>
>> Don't forget the April 2007 "Machinist's Workshop" magazine  
>> comparison
>> test.
>>
>> They arranged a subjective test of all the popular penetrants with
>> the control being the torque required to remove the nut from a
>> "scientifically rusted" environment.
>>
>>
>> ------------------------Average load
>>
>> None ..................... 516 pounds
>> WD-40 .................. 238 pounds
>> PB Blaster ............. 214 pounds
>> Liquid Wrench ..... 127 pounds
>> Kano Kroil ............ 106 pounds
>> ATF-Acetone mix....53 pounds
>>
>> The ATF-Acetone mix was a "home brew" mix of 50 - 50 automatic
>> transmission
>> fluid and acetone.*
>> *Note the "home brew" was better than any commercial product in  
>> this one
>> particular test. Our local machinist group mixed up a batch and we  
>> all
>> now
>> use it with equally good results. Note also that "Liquid Wrench" is
>> about
>> as good as "Kroil" for about 20% of the price. *
>>
>> *Your experience may vary, etc., etc.*
>>
>>
>>
>> -JohnD
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>
>
>
> -- 
> DON JULIO 1942
>
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