[Mgs] mga 1500 with early 5 main mgb engine

[Max Heim]

Hmm, the back of that tach case has obviously been modified. Are you sure it still contains the matching internals? I say this because for 20 years I ran my Mk. I MGB with the original tach case, faceplate & needle, but with a cheap auto parts store mini-tach inside the case. The only modifications were two small screw holes to attach the mechanism.

An original MGB Mk. I tach would have had a loop in the white wire, attached to the back of the case with a thumb nut and a thin U-shaped brass bracket. I am not seeing that on yours.

Actually, I guess it is unclear whether you are talking about an MGA tach or an early MGB tach...

--
Max Heim
'66 MGB

> On Jul 30, 2023, at 5:22 PM, dave northrup <dave at ranteer.com> wrote:
> 
> Negative ground, car runs smoothly, need to install the electric tach which supposedly was previously installed in this car and working.
>  
> On the back view, what hooks up where?  I am pretty sure the tab, and the screw, are ground.
>  
> The other two – one needs to go to power and the other to the coil.  I think one is a female bullet connector; the other is male.  Which goes to power and which to the coil?
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