Alan
You should be able to prise off the small end cover and expose a squared
end of the armature shaft. Just turn this to see if all is free and
leave at a different point in case you are on a deed spot on the
commutator. Then try again. Worn out brushes are the most likely cause.
If the earth strap is open other strange things will happen. I have
heard of a speedo cable mysteriously burning out! The lights should not
be affected if this is missing.
>After apparently faultless functioning, my starter motor "doesn't". The
>solenoid clunks, and 12 volts appear on the motor side of the solenoid
>when the key is turned. The lights do not dim, so the motor is not
>taking current (and is not jammed).
>
>Opinion here says that it could be that the brushes are totally shot,
>or just that the commutator has just landed on a dead or dirty spot.
>Can't turn anything by hand, of course. I had hoped that, after a push
>start and a long ride home, the vibration might have 'moved something',
>but no such joy.
>
>I think, if the earth strap was open, the lights wouldn't work. Am I
>right? In which case it has to be internal to the motor (12v feed
>terminals are tight).
>
>Any tricks to try before I remove the motor?
>
>TIA.
--
John Harper
|