[Mgs] Dash Light Problem

Barrie Robinson barrob at bell.net
Thu Aug 30 16:56:55 MDT 2018 

...................and some of us a just plain lazy wanting no problems

On 8/30/2018 12:21 PM, Max Heim via Mgs wrote:
> And, I suppose, some of us drive MGBs to get away from modern 
> electronic devices…
>
> --
> Max Heim
> mvheim at sonic.net <mailto:mvheim at sonic.net>
>
>
>
>> On Aug 30, 2018, at 4:56 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 
>>>> <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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>>>
>>>
>>>
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