[Mgs] Dash Light Problem

i erbs eyera3000 at gmail.com
Tue Aug 28 07:46:41 MDT 2018


Also clean the contact surface of the socket and bulbs and any ground
screws.

Ira Erbs
Portland, OR
typos and artifacts are the fault of my phone

On Tue, Aug 28, 2018, 2:19 AM PaulHunt73 via Mgs <mgs at autox.team.net> wrote:

> 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 <mgs at autox.team.net>
> *To:* 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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