MG
The Classic Marque

Joe--had this exact same issue with a B/W axle in a Mk4 Ford Cortina---The car was one owner and had never been involved in an accident of any type---It did have an issue of eating wheel bearings which was never rectified by the dealers when it was new..
Got the housing out and was going to give it a push in the press then remembered a mate had a decent sized lathe- so spun it up and yep, the ...

Yep that's the best way Willy. Isolate the individual diodes, or any component in the circuit you need to test.

As long as all the connections are removed from the rectifier diode pack, -- the three stator phase wires, plus the brush and regulator connections, then the anodes and cathodes on all 9 diodes in the pack are effectively isolated from eachother, and you get 9 individual readings.

Paul and others

Here are two photo's the first is with out a T square and if you look at the photo you can see the backing plate flange is not square.

Second photo is with a square and you can see the deviation from square.

I'll let you all know how it turns out.

Joe

Jumping back to diode testing, I was taught and always have unsoldered them and tested them seperately---the theory being one might be under spec and balanced out by one being over spec, giving an average ok reading but not ok in practice---old school but that's the one I went to.

Fair bit of buttspeak coming out there an, I tend to agree with Tim--Nothing to hide, nothing to fear from ID - If it saves just one kid from seeing something they shouldn't then it's a good thing isn't it.
Best thing that has happened here recently was banning kids from using their phones during school hours--they now actually talk to each other---going past the school down the road a bit f...

Ha ha. The oil's supposed to keep it cool isn't it? Lol.

A case of better out than in. 😆.

I've still no idea how these things work. I sort of understand car electrics in the way I understand water flow rates in a river (current) and volumes (voltages) and the effect of dams (switches) and weirs (resistance) but much beyond that and the brain cell goes into a safety self preservation mode shuts down and I lose the plot. Or thread.

But talking of components being more robust tha...

Belt and braces earth strap, in case my nuts fall off. Lol.

And this I found interesting. It's not that easy to destroy these diodes. I pulled the faulty rectifier apart, and was surprised they still work.

Even more surprising, was the faulty diode was only faulty because the anode came out (the other anodes I cut short). Poke a probe into it, and it reads normally; exactly the s...

've now got 3 alternators. One the new 18acr 65Amp replacement, only tested to be sure it works. The original faulty 18acr, now fixed using a rectifier from an old spare Lucas 17acr. And one repaired Lucas 17acr, fixed with no more than replacing the outer brush, tested and destined to sit on my shelf.

In addition I've got a spare new rectifier, a new spare 2 wire regulator, a new spare b...

There's nothing new about people offing themselves. Kids and adults. As to how, we used to have public hangings. People know how to kill themselves. Some prefer violent self destruction over the stuff that you swallow. Beachy head doesn't require a mouse click.

Go after the root cause, not the symptom.

Mucky mag's? True blue hard core films, were not hard to find back when I was ...