[Mgs] Dash Light Problem
Barrie Robinson
barrob at bell.net
Thu Aug 30 16:59:23 MDT 2018
I think these "modern" gauges allows easy calibration. So one can goo
broom broom in confidence.
On 8/30/2018 12:17 PM, i erbs via Mgs wrote:
> Do one could calibrate the speedo if you change tire size, rear end
> gears or transmission. Just an option ...
>
> Ira Erbs
> Portland, OR
> typos and artifacts are the fault of my phone
>
> On Thu, Aug 30, 2018, 8:53 AM Charley Robinson via Mgs
> <mgs at autox.team.net <mailto:mgs at autox.team.net>> wrote:
>
> I looked on Ebay, found several used MGB speedos for what looked
> like fair prices. Don't know why I'd want a GPS speedo, especially
> at those prices.
>
> CR
>
> On 8/29/2018 9:30 AM, Barrie Robinson via Mgs wrote:
>> Hello Ira,
>>
>> Went to the site but found it was just like many others ! They
>> put up too much chat and miss the facts. I could not find a
>> product list with prices - take a look ar Speedhut's web site and
>> you will see what I mean. Nowadays it is all presentation an
>> not on product. That's why US TV programs have become almost
>> total light displays.
>>
>> Cheers
>>
>>
>> On 8/28/2018 10:36 PM, i erbs wrote:
>>> Classic speed has a great product for speedos
>>> https://www.classicautoinnovations.com
>>>
>>> Ira Erbs
>>> Portland, OR
>>> typos and artifacts are the fault of my phone
>>>
>>> On Tue, Aug 28, 2018, 7:13 PM Barrie Robinson via Mgs
>>> <mgs at autox.team.net <mailto:mgs at autox.team.net>> wrote:
>>>
>>> Hello Steve,
>>>
>>> Neither my speedo nor tach are working well and when checked
>>> out found it was the heads. Pricey replacements ! As my
>>> MGB GT V8 is not really original it did not take me long to
>>> find Speedhut replacements. They have a good selection and
>>> a brilliant web site to "build" you own gauge. Mine will
>>> be very very close to the original but with far better
>>> performance and features. The speedo is GPS driven - my
>>> oath - and has no connections to the car (except for Lucas
>>> smoke to drive the light bulbs). Trouble is that when I fit
>>> them I will no longer go from 0 to 45-55kph in less than 3
>>> secs with engine ticking over at 500rpm.:-)
>>>
>>>
>>> On 8/28/2018 7:27 AM, daybell7--- via Mgs wrote:
>>>> Thanks, Paul. I’m checking dash ground first thing after
>>>> much good advice, especially about not assuming it’s OK.
>>>> Both indicator lights work. My tach was acting funny. The
>>>> car ran fine, but the tach never registered over 3k RPM.
>>>> Thanks for the good info, Paul and everybody else.
>>>>
>>>> Steve H.
>>>> Gainesville, FL
>>>>
>>>> *From:* PaulHun <mailto:paulhunt73 at virginmedia.com>
>>>> *Sent:* Tuesday, August 28, 2018 3:25 AM
>>>> *To:* daybell7 at aol.com <mailto:daybell7 at aol.com>,
>>>> mgs at autox.team.net <mailto:mgs at autox.team.net>
>>>>
>>>> Usually the first step would be to bypass the dimmer
>>>> rheostat, which may not be as easy on a padded dash as on
>>>> the UK dash. They usually have double spades for each
>>>> connection, with two wires in a single spade on each
>>>> connection, so it is a relatively simple test to move one
>>>> of the connections across to the spare spade for the other
>>>> connection.
>>>> Have you tested the bulbs work out of the sockets?
>>>> All the gauges should have earth wires on a 72, you can't
>>>> assume the dash is earthed. There should be a black wire
>>>> under the fixing nuts that hold them in the dash, or could
>>>> be a spade on the back of the tach case. That is fed from a
>>>> 4-way bullet connector that also feeds the right-hand
>>>> indicator tell-tale, does that work? The left-hand is fed
>>>> differently.
>>>> Does the tach work as it should? If so that would appear
>>>> to have a good earth and it's bulb should work at least.
>>>> Are you looking at them in low light levels? You won't see
>>>> gauge illumination if the ambient conditions are bright.
>>>> Did you only have one bulb unscrewed when you tested for
>>>> 12v in the socket and all the other bulbs screwed in and
>>>> fitted? You need to, especially if your test light has an
>>>> LED or you use a voltmeter.
>>>> Take each socket out of the gauge and earth it with another
>>>> wire. Make sure your earth wire is good, can your test
>>>> lamp check earths as well as 12v?
>>>> PaulH.
>>>>
>>>> ----- Original Message -----
>>>> *From:* daybell7--- via Mgs <mailto:mgs at autox.team.net>
>>>> *To:* mgs at autox.team.net <mailto:mgs at autox.team.net>
>>>> *Sent:* Monday, August 27, 2018 6:08 PM
>>>> *Subject:* [Mgs] Dash Light Problem
>>>>
>>>> The dash lights don’t work on my 1972 MGB. The trouble
>>>> lite will light when I test the sockets, but various
>>>> new bulbs won’t. Does this mean low voltage? I’ve
>>>> grounded the test light on a bolt and assume the dash
>>>> is grounded.
>>>>
>>>> Thanks,
>>>> Steve Hughes
>>>> Gainesville, FL
>>>>
>>>>
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>>
>>
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