Alternator

Full Screen Mode

Some Tech stuff:

All alternators are "Internal Regulator/ Internal fan" = "IR/IF"

1.0 litre engines Nippondenso IR/IF 100211 - 4080 12Volt 45Amp Dai part 27060-87701

Alternative 100211-435 12Volt 50Amp 3 grove pulley Dai part 27060-87706-000

1.3 litre engines Nippondenso IR/IF

Alternative 100211-377 12Volt 55Amp 4 grove pulley Dai part 27060-87711-000

1.6 HD-E Rocky Nippondenso IR/IF

Alternative 100211-699 12Volt 50Amp 4 grove pulley Dai part 27060-87603-000
Stripping

A good brushing with kerosene as you go will keep things a little neater.

The following is a step by step of a strip refurbishment of a typical alternator (this one being a G11 vintage).

Thumbnail pictures give a clue to the featured pic, for those with slow speed connections who want to jump steps.

Back Removed

This picture shows the metal cap removed, exposing the brush carrier, regulator and bridge rectifier. Retaining screws have already been removed for disassembly.

Back Off

 

Brush Holder Removed

First cab off the rank is to remove the brush carrier

 

Regulator Removed

Leaves only the bridge rectifier to come

 

Bridge and Insulators Removed

In preparation for general disassembly. Now where did I put my home made stepped bearing remover all those years ago?

 

Slip Rings Exposed

Little buggers aren't they! These are scored from use and will need turning in a lathe to get them back to even, if there is enough meat left on them.

 

Brushes Up Close and Personal

Here is a close up of the brushes and their carrier. The silicone rubber cover has been pulled off...

 

Before We Get Into More Stripping

Pays to test the parts so replacements can be ordered.First step is visual inspection of the bridge rectifier. Oh dear I see a blackened diode terminal
and the other side is blistered. I will have to test that with a multimeter. Damnit my good meter is not here, a cheapy will have to do.
Firstly what are the important bits: Click on the pic for an explanation
Second task is to test the diodes Using a multimeter to test the diodes on the +ve and negative bridges

 

.