[Healeys] Ring gear not fully seated in flywheel

[I Erbs]

The only ring gear experience I have was with my old Sunbeam Imp.
 We used a couple of map gas torches to heat it  red hot, dropped it on the
flywheel. knocked it flush with wood and sledge hammer and then immediate
gave it a cold water bath.
Seems to concur with Mr. Salters reading of the repair manual.
 400 C seems way to hot. Over 700 F. While not hot enough to weld or
braise, maybe to hot to reduce hardness.

Ira Erbs
Portland, OR
   _______                                  _______
     (______ \____1960 BT7____/ _______)
         (_________________________)

On Tue, Jan 20, 2015 at 9:01 AM, Michael Salter <michaelsalter at gmail.com>
wrote:

> I have found the comments on this topic to be very interesting with
> regards to the heating of the ring gear. I am no metallurgist so I tend to
> pay attention to manufacturers instructions regarding the heating of metal
> components very carefully.
> In the BN1 workshop manual instructions are given for shrink fitting new
> brass syncro cones onto the gears. The instructions read:
> *"The heating (of the syncro ring) can best be done by immersion in oil of
> 250 degrees Fahrenheit and then fitting by means of a hand press. After
> shrinking on, the unit should be immediately be quenched in water to
> prevent the heat softening the gear itself.*
> 250 degrees Fahrenheit is the equivalent of 121 degrees Centigrade.
> Well, if we are going to be heating the actual RING GEAR to 2 or 300
> degrees Centigrade should we not perhaps be a tad concerned about heat
> softening the ring gear??
> Just a thought....
>
> Michael S
> BN1 #174
>
> On Mon, Jan 19, 2015 at 8:30 PM, Steve Gerow <steveg at abrazosdata.com>
> wrote:
>
>> Chris – I’ve had my Weber gas grill will close to 400 degrees C.
>>
>>
>>
>> Understand from many videos grilling is big in OZ – suggest use of barbie
>> rather than wife’s stove for heating of ring gear.
>>
>>
>>
>>
>>
>> --
>>
>> *Steve Gerow*
>>
>> Altadena, CA, USA
>>
>> BN6 & Weber S330
>>
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>
>
> --
> *If you can't fix it with a hammer, you've got an electrical problem.*
>
>
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