[Healeys] Tach rebuild

[Bob Spidell]

It's been so long--over 15 minutes--that I don't remember for sure, but 
I might have put an 'extra' loop in the pickup terminal. And I do recall 
the wire has to be oriented in one direction (not the other).

On 11/25/2020 2:05 AM, Kees Oudesluijs via Healeys wrote:
>
> This is the problem The tachometer may or may not work with a Petronix 
> ignition. On my own car it works fine but on on of my friends one with 
> exactly the same set up it does not. Why? No idea.
>
> Kees Oudesluijs
>
> Op 24-11-2020 om 23:30 schreef Bob Spidell via Healeys:
>> FWIW, I’ve had a Pertronix in my BJ8 for almost 20 years and my tach 
>> works fine. I did calibrate it once with the internal trim pot.
>>
>>> On Nov 24, 2020, at 2:22 PM, David Nock BCS via Healeys 
>>> <healeys at autox.team.net> wrote:
>>>
>>> 
>>> Re install the points ignition and problem solved.
>>> David Nock
>>> British Car Specialists
>>> 209-948-8767
>>> www.britishcarspecialists.com
>>> *From:* Michael Salter
>>> *Sent:* Tuesday, November 24, 2020 2:13 PM
>>> *To:* John Spaur
>>> *Cc:* Healeys
>>> *Subject:* Re: [Healeys] Tach rebuild
>>> Keep looking for archive articles John.  I recall that a very simple 
>>> and inexpensive fix is available.
>>> M
>>> On Tue., Nov. 24, 2020, 5:02 p.m. John Spaur via Healeys, 
>>> <healeys at autox.team.net> wrote:
>>>
>>>     Palo Alto Speedometer rebuilt mine.
>>>
>>>     -----Original Message-----
>>>     From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf
>>>     Of John OBrien
>>>     Sent: Tuesday, November 24, 2020 12:24 PM
>>>     To: Healeys <healeys at autox.team.net>
>>>     Subject: [Healeys] Tach rebuild
>>>
>>>     Hi Listers:
>>>
>>>     The tach on  my BJ8 does not show the correct RPMs.  On a cool
>>>     morning it shows what I believe is fairly close to the right
>>>     numbers, but as the car warm, or the day warms, it reads higher
>>>     and higher for the same speed.  I know it is not the clutch
>>>     slipping.   I saw some articles in Healey Marque magazine
>>>     showing how to rebuild and test them, but it requires a
>>>     oscilloscope and some other specialized equipment I don't have,
>>>     so I'm wondering if you guys have a recommendation for someone
>>>     that might rebuild them.
>>>
>>>     I imagine there is also some info in the archives, but my
>>>     antivirus software flags the archive site as a malicious website
>>>     and doesn't want to let me access it.
>>>
>>>     Thanks for any info.
>>>
>>>     John O'Brien
>>>
>>>     '61 bugeye (Lucy)
>>>
>>>     '65 BJ8 (Madelyn)
>>>

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