i took the moter out and it ran nicely without the mechanism attached.
i opened up the gearcase and there was enough grease in there. No damage to the gears.
i undid the motor slightly to try to get a good look at the brushes, i counted 3 (correct? and they are all of sufficient lenght)
i couldn't find anything wrong so i reinstalled it making sure to reattach the small mass wire
i also used liberal squirts of ATF to lubricate all swivelpoints in the mechanism.
then i tried the wipers again.
result: disappointing, hardly any change...
![Sad :(](./images/smilies/icon_sad.gif)
fyi: the starter motor turns fast and powerful. so battery OK.
other users do not dim( engine off) when i also switch the wipers on.
no blown fuses.
What's the verdict on this wipermotor? is it on it's last legs?