Revs go up, lights go down Revs go down lights go up

That looks like the one. The brushes are part of the regulator assembly - you can't see them in the pic.

You'll likely need a new battery as well.

 

That's great, couldn't find any other pics, thanks, ordering it for tommorow, the battery is showing 12.5v still, do you think this one will just pack up soon then, any way of testing it? it's a sealed one

Thanks for helping

 

If it's been venting after being charged at 17V, I suggest it's had it and won't hold charge any more. Some of the plates are likely buckled.

You could buy a hydrometer for a few quid and check the cells, but prob best just to buy a cheap new one from a motor factors.

 

The new ones do have a warranty, but as this is a Bosch and I don't want to lay out £190 without an exchange unit though I'd go for this, under £30 you can't go wrong and a bit less work. The new ones seem to have a plastic top whereas my Bosch is all metal.

I do have a good collection, I need a few more bits this summer for my full set of r Lucas lr9s for my mini. I have an amber glass Miller one from the 60's fitted to my van and another Miller with the large amber bulb and clear lens on my bug and few others knocking about, I will keep an eye out for an amber one for you when I go hunting

 

Cool, i will grab another Gsf own one when I go to be safe.

Another thing sorted Thanks to TLB

 

Nice one! If it's Bosch, I'd stick with what you've got and replace the regulator. At least you can change the regulator without removing the alternator (which would be a major PITA).

 

I could always pull you along

 

Yeah you always hear people saying how good the older stuff is, the new ones do look a bit inferior, well my price range anyway.

And I've always got a little tow from @S1mon

 

Stick with the old alt if it's just the regulator that's gone. "New" isn't necessarily better.

 

And I know the old ones ok as it was banging out 18 volts earlier

 

If the regulator goes, alternators have the deep belief that they can generate a million volts, if they really try...

 

I also sorted the manky wires to the regulator and battery ready for the new ones tomorrow, just in case

Changed this for this



And that for that



Regulator end looks much less like a fire risk now

 

Excellent stuff . Don't forget to give the big terminal on the back of the starter a good clean-up...

 

Going down that way next, I've got some new earth straps in my box

 

Went Gsf and Got it fitted it today

Quite impressed it is a German one and £25, works perfect now, charges at 14v

 

Alls good under the hood

 

Tidy!

 

A bargain if it was £25!