Hi all.
Picked up a tidy 2001 929 recently, in a part-ex deal.


Took it to Wales on Tues, had a great couple of days blasting round the awesome roads there.

Hit a problem on the way home though . . .

I've done a bit of searching, seems charging issues are fairly common.
No mention of water ingress being a possible cause though?

Hit a Biblical Downpour, lasted around 10 minute before settling down to a heavy shower.

Dash went 'dead', no Tacho, no Display, but the Engine kept on singing like the previous half hour howling through the empty Valleys.
After 3 or 4 miles, it started misfiring, then died completely a few seconds later.
Switched off, then on again, and the Dash came to life again.
Starter Solenoid buzzed feebly when Starter Button pressed.

Managed to bump-start it, and it ran OK again for another couple of miles, but with the Dash blank again.
Died again, and I just managed to coast into a Service Station in Builth Wells.

Local recovery arrived after an hour (via the AA), and tested the Fuses under the Seat, all OK.
Jump-started it, it ran fine, but no charging voltage getting to the Battery.

Is it likely the downpour caused it, or could it just be a coincidence?
Is there a 'usual suspect' Connector Block that's prone to water getting in, or the Alternator itself?

Thanks.

 

I've been through rain like that on mine a few times with no problems. I'm thinking it's coincidence. The charging system is better than that of previous models, but the still eventually fail. I've replaced the regulator and stator a few times on the two 929s I have/had. It's not a hard job, just remember to get a stator cover gasket.

 

OK, thanks.
I take it it's fairly obvious visually, if it's knackered, burnt insulation or similar?

 

Stators are easy to check with a meter. Checking across all 3 yellow wires should be between 0.1 - 1.0 Ohms. No continuity to frame ground on any of them. If they check out, then it's not that.

 

One thing I've learned is to replace the stator and regulator as a pair....

 

Thanks both.

 

Hmmmm, that would explain it.
Now the question is, what caused it?




I cut the Connector off and stripped the Wire ends.
All three have continuity to Ground (Battery Earth Lead), so it looks like I'll be rewinding it . . .

 

Most of the time, it's corrosion that builds up between the metal blade of the connector and the female portion. If that is an inline wiring connector, then replacing the connector plastics along with the metal pins would be the route to go. So long as the pins are of equivalent size, then it really doesn't matter what connector you use. However, if you're replacing the Stator and it comes with the connector on it, then you're going to need the one that matches. That picture looks like the wiring harness side and not the Stator side.

BTW, this may be the connector you're looking for. Contact them, they're very helpful and knowledgeable.

http://www.cycleterminal.com/yazaki-312.html

 

As mentioned, there is continuity to Ground on all three wires, so I'll need to rewind it.
I'll probably just use some good quality Bullet Connectors, and shrink wrap them with the adhesive-lined stuff.
The other option would be to just solder them, there's no real need for it to be quickly detachable.

 

Since all the wires in the Stator are ultimately connected to each other in the windings, its often that all will show a short to ground. If you rewind it yourself, post up some photo's of your progress. Would like to see that. as for the connections, soldering would certainly eliminate a melted connector.