[Healeys] Ring gear not fully seated in flywheel

Oudesluys coudesluijs at chello.nl
Mon Jan 19 05:20:29 MST 2015


There is no need to heat the shit out of the ring.
Putting the flywheel in the freezer for 4 or 5 hrs and the ring gear in 
the oven at 250 degr. C for 1hr when the Missus is out for the day is 
good enough.
Kees Oudesluijs


Chris Dimmock schreef op 19-1-2015 om 12:53:
> The "interference fit" method I've seen and experienced is...
> 1. Apply a shitload of heat on a ring gear, (preferably with at least 
> 2 blokes dressed like blacksmiths), with strong steel tongs to lift a 
> ring gear that could burn a hole through your garage floor...
> 2. Which is then dropped/ slipped  carefully over...
> 3. a near frozen flywheel...
> 4. lightly tap the ring gear into a square position on the flywheel.
> 5. follow up with a couple of appropriate tacks from a MIG.
> 6. Omit step 5, If you think you need to replace the ring gear in the 
> next 150,000 - 350,000 miles, and don't have a spare flywheel.....
> Trust me. You will replace the flywheel before you replace the ring 
> gear again...
> Lots of heat. Placed on lots of cold. That's the definition of an 
> "interference fit"
> Tack weld if you don't think you got it right. Just to be sure.....
> Just to be sure.
> ;-)
>
>
> Sent from my iPhone
>
> On 19 Jan 2015, at 7:20 pm, Oudesluys <coudesluijs at chello.nl 
> <mailto:coudesluijs at chello.nl>> wrote:
>
>> This happens fairly often when a ring gear is replaced by a 
>> incompetent mechanic. The only solution is replacing the ring gear 
>> once again. In very rare cases one can heat the exisring ring quickly 
>> to expand the ring gear without heating up the flywheel to much and 
>> bang home the ring gear. However this trick usually fails for various 
>> reasons.
>> Kees Oudesluijs
>>
>>
>> richard mayor schreef op 19-1-2015 om 1:45:
>>> Has anyone ever seen or heard of a 6 cylinder Healey flywheel ring 
>>> gear  that was not fully seated onto the flywheel. I discovered just 
>>> such a situation with a flywheel from a motor that had little over 
>>> 5,000 miles on it. There is a bit more than 1/8th inch gap. The ring 
>>> gear was rubbing on the top 2 rear engine plate mounting bolts. It 
>>> was definitely a noise maker.  I suspect that is why the engine came 
>>> out of the car at such low mileage.
>>>
>>>  Richard Mayor
>>>
>>>
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>>
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