[T3] Brake Lights

[Bryon Garvin]

Well, trying to back the threads of that switch out, my buddy broke the tap
off.  I don't blame him, he was proceeding cautiously.  So, had to take the
MC to a machine shop and leave it up to them to get both out.

I won't have it back until 12pm tomorrow.  They seemed confident in being
able to take care of it, but I'm skeptical about whether it will be clean
enough to put fluid back in and not have some tiny shard blocking a port or
something.

<sigh>....any thoughts on this?  Jim, you rebuilt it and I've sent it to you
twice now.  Once for rebuilding and a second time to see if there was
something additionally wrong.  In the end we figured it was a blocked
compensating port which cleared itself.

Anyway, let me know what you think about whether I can just install this as
is or it should be looked over by you before adding DOT 5.  I will be gone
most of July so if I have to ship it to you, I wouldn't be missing it.

 - Bryon, '71 Fastback
On Jul 5, 2011 2:38 PM, "Bryon Garvin" <spinningrooves at gmail.com> wrote:
>>
>>
>> It may be the construction. The center hole should be small ALL the
>> way thru the small dia part of the switch.
>>
>
> Here's some pictures.
>
>
https://picasaweb.google.com/lh/photo/d86k_avFKYjqyvBBKuLnZBeOhsgH_CeuarCEXbsp8HY?feat=directlink
>
https://picasaweb.google.com/lh/photo/cVLzK53qUbOuxyaBOBtXtReOhsgH_CeuarCEXbsp8HY?feat=directlink
>
> It seems to to *mostly* be the same diameter all the way thru the threads.
> Possibly near the end, it looks to widen out and maybe that's too soon? I
> threw the rest of the switch away days ago so I don't have it to compare
> with the threads anymore. But I can tell you that the switch body had
about
> a 3/8" hole where these threads would mate up. So, clearly, it broke at
the
> point where the hole widened to meet the switch body.
>
> I did notice that once the threads were missing, the diaphragm was easily
> seen. I used a screwdriver to push on it and checked the pins with a
> multi-meter. Part way down, the first contact was made which I assume is
> the circuit that would operate the brake warning light. Pushing further,
> the next contact made operated the brake lights. So it was 2 stages which
> I thought was interesting.
>
> BTW, do you need to use a thread sealing compound on these switches? I
have
> seen the ones that do have it on there right out of the box.
>
> Thanks,
>
> - Bryon, '71 Fastback
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