[TR] Wiper Motor Brush assembly

[David Friedlander]

This isn't simply wire. It's spring wire....
Doesn't it need to be hardened and tempered wire?

On Sun, Oct 7, 2018 at 10:45 AM Randall <tr3driver at ca.rr.com> wrote:

> The only that thing that matters is how much force it puts on the brushes.
> And you can adjust that after making the spring.
>
> Make it too long to begin with, then trim to length. If that's too weak,
> trim another turn. If that's too strong, spread one of the coils a bit.
>
> If what you make the first time won't do, change wire size and do it
> again. Only takes a minute once you've got the setup.
>
> This is 18th century technology, not rocket science.
> -- Randall
>
> On 6 October 2018 18:46:19 GMT-05:00, David Friedlander <
> forzion7 at gmail.com> wrote:
>>
>> Make a spring? So many variables in such an inexpensive part:
>> Wire gauge, pitch, overall length, etc....
>>
>>
>>
>> On Sat, Oct 6, 2018 at 7:43 PM Randall <tr3driver at ca.rr.com> wrote:
>>
>>> I have successfully carved the " ears" from a scrap of PC board.
>>> Didn't lose the spring, but I suspect you could make a suitable
>>> substitute from the spring inside a retractable ball point pen.
>>>
>>> Or buy some spring wire and make one from scratch. I've done it in the
>>> lathe, but you could probably manage with a slow turning drill and a nail
>>> or similar for a mandrel. Its best not to try to hold the wire in your
>>> fingers, it can cut you pretty badly. So use a scrap if wood or similar to
>>> guide the wire as the drill turns.
>>> -- Randall
>>>
>>> On 6 October 2018 15:50:29 GMT-05:00, David Friedlander <
>>> forzion7 at gmail.com> wrote:
>>>>
>>>> Hey all;
>>>>
>>>> The wiper motor on my TR3A looked quite sad. I removed it and
>>>> proceeded to remover 60 years of crud, outside and in.
>>>>
>>>> In the process of cleaning the parts, I have misplaced the tiny
>>>> spring and the two tiny "ears" that hold spring to the two brush
>>>> "arms" that rest against the armature. [Moss P/N 554-030]
>>>>
>>>> Unfortunately, these parts are now NLA from any source I know of.
>>>> See item number 2 from the Moss illustration, below.
>>>>
>>>> Seems crazy to buy a replacement/salvage motor just to replace
>>>> a missing spring and retaining 'ears.' Ideas?
>>>>
>>>> [image: image.png]
>>>>
>>>>
>>>> Thanks for any help!!
>>>>
>>>> Dave Friedlander
>>>> '74 TR6
>>>> '59 TR3A
>>>>
>>>
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