Results 1 to 8 of 8
Thread: One Wire Alternator POS!
-
03-02-2009 #1
Registered User
- Join Date
- Nov 2005
- Location
- Royal Palm Beach, Florida
- Posts
- 2
One Wire Alternator POS!
Anybody experience overvoltage like 16+ volts once excitation occurs (2500 RPM).
Thing stays off until I blip throttle then it excites, but pulses between 14 -16.5+ volts with all lamps flickering.
Any ideas?
Thing looks pretty but works like a turd.
Lou
-
03-02-2009 #2
-Moderator/Sponsor-
- Join Date
- Apr 2001
- Location
- The City of Fountains
- Posts
- 16,117
Sounds to me like the voltage regulator is not doing its thing.
Originally Posted by 70Hugger
Anybody experience overvoltage like 16+ volts once excitation occurs (2500 RPM).
Thing stays off until I blip throttle then it excites, but pulses between 14 -16.5+ volts with all lamps flickering.
Any ideas?
Thing looks pretty but works like a turd.
Lou
Andrew1970 GTO Version 3.0
1967 Cougar build
GM High-Tech Performance feature
My YouTube Channel Please Subscribe!
Instagram @dr__efi
I deliver what EFI promises.
Remote Holley EFI tuning.
Please get in touch if I can be of service.
"You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her
03-02-2009 #3
Sponsor / Rat Pack Member
- Join Date
- Aug 2006
- Location
- Nashville TN
- Posts
- 771
make sure you have a good ground between the engine and frame.
Brian Finch
Pro-touring Hero
The Proof is on the Pavement
Sponsored by Baer Brakes, JRI Shocks, Pennzoil, Tremec, Magnaflow, Centerforce, AFCO Racing, Kurt Urban Performance, Amercian Powertrain, Forgeline, Holley, and of course BFG.
For the best engine money can buy please visit http://www.kurturbanperformance.com/
Authorized dealer for Baer, Ridetech, Detroit Speed, Vintage Air, Motorstate Distributing, Wilwood Engineering, American Autowire, Forgeline, Holley, Afco,
Contact brian@finchperformance for special Pro-Touring.com member pricing
www.hotrodtransformations.com
03-02-2009 #4
Registered User
- Join Date
- Jul 2007
- Location
- Tracy, CA.
- Posts
- 1,347
Check your grounds....if it still spikes, change it out pronto. The voltage regulator is not working most likely. I had this happen and it burnt out my digital dash and MSD box.
Steve Martin
67 Camaro RS
66 Chevelle
03-02-2009 #5
Registered User
- Join Date
- May 2002
- Location
- Northern California
- Posts
- 10,716
Yep, some are garbage but see if you have a loose or dirt in your recifier or a crack in your thermal ceramic bolt grommet.
MrQuick ΜΟΛ'ΩΝ ΛΑΒ'Ε
03-05-2009 #6
New to Pro-Touring
- Join Date
- Oct 2008
- Location
- Memphis, TN
- Posts
- 7
I've had this problem before and it drove me nuts for days, I replaced everything twice. It turned out that the connection between the regulator and the plug going into the regulator were loose and making a poor connection.
One other thing to think about, the regulator sends excess voltage to chassis ground. If you've got a bad ground between your block and frame, the excess voltage is going to find the path of least resistance, which may be back into the charging path.
03-08-2009 #7
Registered User
- Join Date
- Nov 2005
- Location
- Royal Palm Beach, Florida
- Posts
- 2
Thanks for all the input. I ordered a one-wire kit from $ummit and R&R the inerds. Shes working OK now.
I did not notice anything burnt, loose, or cracked so I suppose it was an electronics failure.
Lou
03-08-2009 #8
Registered User
- Join Date
- Sep 2006
- Location
- Southern Indiana
- Posts
- 4,709
In my opinion as a an diag tech and electrical specialist one wire alternators should be outlawed.
You only need the small wire of the normal SI plug wired to 12 v key on (that wont back feed to ignition or car wont shut off or you will need a 400PIV 25v diode inline) and simply loop the larger wire to battery terminal on back of alt.
My personal favorite is newer CSI133/CSI144 alt with similar wiring. if you want warning light its simple just pm or email me at [email protected]
Reply With Quote
