Replacing Alternator Regulator And Brushes

[Bassman 1]

Hello,

 

Finally got round to stripping some of the electrical items on my Pug as I want to stop the starter motor from occasionally doing the clicky no-start thing and also my headlights tend to flicker on tick-over or low revs.

 

First of all I have had a go at the alternator. Whipped it out and took it to local auto electrics place near to where I work. They tested the alternator on their bench and said that the regulator was not functioning correctly (the regulator controls the output from the alternator). £14 got me a new regulator, which on my alternator also houses the brushes.

 

Alternator

 

Whipped off the plastic cover to fully expose the regulator and the spade connector. Only two bolts to remove.

 

Cover off

 

Regulator removed

 

Soft focus

 

New regulator fitted, copper wire holds brushes in place. Pull out after regulator is lined up to release the brushes.

 

New regulator fitted

 

and that's it. Plastic cover back on and clean up some of the terminals and I'll try fitting it this week to see if my flickering headlights have gone away!

 

Not sure if this is applicable to all as when I was researching this, some people seem to say that you could only get to the brushes through the front of the unit by removing the pulley etc. With this type, you could easily remove and replace the regulator and brush pack with the alternator in-situ.

 

 

Rob

Edited September 16, 2007 by Bassman

[ALEX 98 1 Cars]

Yeah! with mine you have to split the alternator to get to the brushes.

You might as well change them for £12 AFAIR.

AFAIR the procedure is to remove the pulley and the long screws around the side (4 of them I think)

Then prise the top half off. you don't need to undo the screws behind the pulley, these hold the top bearing in place which comes off with the top section.

It will be on tight but keep pulling the top half leaving off the bottom part and the middle (black section in place, as these are soldered together.

With the top off the rotor should pull out.

The brushes are now accessible and you should see how they fit, but when fitting the rotor back in you will have to put a pin from the outside through a hole to hold back the brushes so the rotor shaft can be re fitted.

Edited September 17, 2007 by ALEX

[Bassman 1]

Sorted. Tested it last week and no more flickering headlights.

 

Just got to sort the starter motor now.