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General Information => General => Topic started by: AudiVWguy on February 08, 2009, 06:15:33 pm
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This product was talked about here a while back so I went to Ebay and bought one. (about $18.00)
Standard voltage regulator was in there and was producing about 13.4 volts.
With the new one the swap was very easy, restarted the motor and adjusted the output to 14.3 volts. With all accessories on it drops to 14.0 still very good.
One thing that was a big improvement was the RPM the the exciter kicked in. In the past, the engine revved to 2000 rpm, now the alt light goes out at 1500 rpm.
Overall, I'm very happy with the purchase. :lol:
(http://i256.photobucket.com/albums/hh177/AudiVWguy/IMG_1782.jpg)
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so you still need to rev the engine to get rid of the battery/charging light???
pretty cool! 14v might be a little too high though for some of the circuitry??
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Yea, but I've always had to rev it up anyways.
You can go into the 14.2ish range, probably shouldn't go to 15. :shock:
-JB
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Electronics are made to accept a range of V. But they aren't forgiving if you damage them!
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true.. thank god there's no computer to fry :lol:
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Pardon my ignorance - what alternators will this fit? I'd really like 14v from my Motorola on the Van. This is for Bosch alternators only, correct?
Thanks
Chris
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TRY THIS, I THINK I COPIED HIS SPOT ON EBAY. IF NOT, LOOK UP ADJUSTABLE VOLTAGE REGULATOR ON EBAY MOTORS.
http://cgi.ebay.com/ebaymotors/Voltage-Regulator-Bosch-Audi-Chrysler-BMW-Porsche-VW_W0QQitemZ230283853889QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item230283853889&_trksid=p3911.c0.m14&_trkparms=72%3A1171%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318#ht_1158wt_1041
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i recently replaced the VReg on my 1986 bosch alternator.
even the "new" regulator from the parts store reads less than 14V.
last few trips to the wrecking yard, i noticed bosch VRegs are a hot commodity coz almost all the vw alternators got their regulators swiped by the needy.
i also noticed that some volvo and saab car's have a bosch regulator with part #197 311 022 is similar to the oem vw VReg with the exception of one little diode factory soldered. i pocket two of these to try out and both are showing 14.3V @ idle, and 14.0V headlamps and heater on.
it is unfortunately non adjustable and i still have to blip the throttle to rid of the alt. light at start-up.
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You can do the diode mod yourself, if like me you think 13.7V is a bit stingy:
http://articles.mbz.org/electric/regulator/
(you have to scroll down the page a bit to see the actual article)
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Where are you guys measuring your voltage from?
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I run a fused wire directly from the + battery clamp to the voltmeter, the other end to a very good ground.
With a brand new Bosch alternator I get a bit over 13V at the dash, with the glow plugs on, and somewhere between 13.5V and 14V normally, depending on ambient temperature. Bosch regulators have a negative temperature coefficient... the hotter they are the lower the output voltage. According to my multimeter my dashboard VDO reads just a tiny bit low, but like most gauges I'm more interested in trends anyways.
Soon as the warranty expires I'll be putting in one (or maybe two) diodes.... on those cold winter mornings I think a bit more juice would probably be appropriate.