There will be a drop of voltage available to the solenoid when the
starter is cranking. Therefore the procedure suggests 10v to make sure
that the solenoid will still work with a reduced voltage. If it works
with 12v, that's probably ok.
Elliott DeGraff
2 71Bs
Jason B Lonon wrote:
>
> Hi. I'm trying to test the starter motor to see if it's working or if it's
>something else that's causing my MGB not to crank. I've removed the start
>motor and solenoid (M418G Pre-Engaged) and want to test it. If I'm reading the
>Haynes Manual correctly, I'm supposed to hook a 12 volt supply across the
>large battery terminals and then apply a 10 volt supply to the small solenoid
>terminal.
>
> Questions: Why 10 volts? Can I use 12?
> There is another terminal marked IGN that is not hooked up to anything on my
>car, what is it's purpose?
>
> Sorry for bugging you, but the manual is not very clear in these questions.
>
> Thanks.
> ---
>
> Jason B. Lonon
> '72 MGB
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