Stator issues?

Y

Yamablue

Member
Joined
Mar 7, 2004
Messages
221
Location
Ham Lake, Mn
Well I'm resisting as much as I can to pull the stator on my 02 Viper, but I'm almost to that point.

Recap: Headlights dimmed when hooking up elec face shield. Guage backlight dims out when hitting brake or high beam.

So far I have tested the resistance at the three leads and they are vary between .3 and .5 ohms. The output according to my new Craftsman multimeter says 8.6 vAC but my old $9 cheapy says its 14.6v AC. I have 12.6 DC at the connector to one of the capacitors at idle (1600), jumping up to 13-14v DC with a little throttle. Capacitors appear to check good. I can't get a mF reading, but the megs (ohms) and mA continue to increase as long as I test it (same for both). Check running condition with one and both disconnected. Seems to be about the same for both weither they are both hooked up or just one. When through the main harness and checked out OK. Unhooked the brake light wire and still does it. Moved brake light wire around in case it may be touching somewhere. Still does it. Not sure what else I need to check.

If I end up pulling it off, at least I can surge comparison it at work and see if I have a turn to turn short in a coil or something.

Any other suggestions or anything else worth checking?
 

Well I think I may understand why the Craftsman meter is reading low. According to the manual, the AC readings are only accurate above 50 Hz. I dought at Idle the stator is puting out more than 50 Hz. I check again later.
 
Is this both cold and hot checks?

what do you have coming right out of the voltage regulator?, and before it?

try to unplug both headlight bulbs and check again for the dimming guage and tailight.
 
I have checked both hot and cold. I checked at the smoothing capacitors but I would have to pierce the wire if I wanted to check right before the reg. The weather pack connector keeps me from getting in. I already unpluged the tail light and its not as back but still dims.
 
Mr700: I checked the voltage at the regulator and I have 8.3v AC before and 12.99-13.2v DC at Idle. THe values don't really change. Ph-Ph on the stator gives me the expected 16v AC. The readings are with my new Craftmans multimeter. My cheapy volt meter still says 14.4v AC Ph-groung on the stator and the same after the regulator. When I have everything unplugged, I have 14.4 volts, I plug the headlights in goes down to 12.8 volts, plug tail light in 11.9 volts, brakelight 9.5 volts. On the stator, If I have everything unpluged, it makes 1.2 volts, plug the lights in and goes to 6.9 volts. Plug taillight in drops to 5.9 volts. All at the reg. Any thoughts?
 
sure doesnt sound bad by your readings, btw- the sled is all dc current after the rectifier/ regulator. I wonder if you dont have a wiring issue or something else cause the stator sounds like its putting out good juice.

Is this a ER viper or std?
 
So what do you think I'm looking at? Maybe I should pull the main harness back out and loop it over the motor while running it to test. Do I need to pull my gas tank to check that part of the harness? I've almost got the stator out, and I'm going to continue so I can bring it to work and stress the windings with a surge tester and hipot.
 
is this a viper ER or a std without elec. start and reverse?
 
How about .312 ohms, .224 ohms, and .056 Ohms. At room temp. Would that be bad? :) I tested it with a relly nice Baker tester and it passed the surge comparison, meggar and HiPot. I think my best bet is to buy a new stator.
 
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