Live Chat!
SVX or Subaru Links
Old Lockers
Photo Post
How-To Documents
Message Archive
SVX Shop Search
|
SVX Network Forums Live Chat! SVX or Subaru Links Old Lockers Photo Post How-To Documents Message Archive SVX Shop Search |
IRC users: |
|
|
|
#1
09-19-2016, 06:52 AM
|
||||
|
||||
|
Alternator question
Okay, so Dr. Kuo and I looked at the SVX after getting it back form AWD Tuning and we think the reason it keeps dying is that the alternator isn't spinning enough to keep it charged. It seems with this smaller pulley (9psi pulley for the supercharger) that unless the car is at 2000 rpms it puts a drain on the battery instead of charging it.
I got my alternator rebuilt from Maniac Motors and got the high output version but i think that just increases the AMPs but not the voltage amount so my question is does anyone one know if it is possible to adjust the amount of voltage at a specific rotation for the alternator? I assume Manaic could do that by using a different regulator but I wasn't sure. Any thoughts?
__________________
'93 LS-L named "Samantha Victoria Xavier"...Sam for short. All new and improved custom built engine with forged internals, lowered compression, upgraded cams and a stage III supercharger. AMR Engineering struts, Custom exhaust --All 3 Subaru cats removed, and replaced with 2 high flow mustang cats-- Cross-drilled & Slotted rotors, steel braided brake lines, bypassed stock Tranny cooler replaced with aftermarket B&M super-cooler, and a K&N drop in air filter. 
|
|
#2
09-20-2016, 12:48 AM
|
|||
|
|||
|
Re: Alternator question
First thing to do is get a multi-meter and measure between the alternator output post and a ground on the body. Or if that's difficult to get to measure between the clamps on the battery. voltage should read around 14v and even at idle should be above 12-13. if not then your alternator is no good and need to be replaced, if yes then the battery is shot and need to be replaced.
__________________
1992 SVX Pearlie: AmsOil signature synthetic 10w40 and Ea15k20 filter, Cobb crank pulley, Outlaw Engineering spacers and tb bypass, LGT 5spd, Slotted Crossdrilled rotors and ceramic pads, 11:1 compression, EGR delete, Port & Polished heads, SaikoMichi catch can, A/c delete.
|
|
#3
09-20-2016, 07:10 AM
|
||||
|
||||
|
Re: Alternator question
.
“Thoughts” will not help. unless these are based on facts. Measure the voltage directly at the battery while running the engine and gradually reducing engine speed. Only at a point where the voltage falls below say 12.5 volts, can you assume that the alternator has completely stopped charging. In any event, provided that overall the battery remains fully charged, how can the lack of alternator output at low engine RPM, cause your engine to “keep dying”? --- .
__________________
. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016  2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback  2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields.  4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . .
|
|
#4
09-20-2016, 12:14 PM
|
||||
|
||||
|
Re: Alternator question
Kuo and I checked the car last night and before starting we got 12.7v. When i started the car up and let it settle into an idle it dropped to 12.1 then after a few minutes it dropped further to 11.9 so i turned it back off, and that was with everything in the car off (radio, lights, everything).
We pulled off the alternator and I took it back to Maniac Motors on they tested it and found that the regulator was bad. They were able to repair it while I was there so i'll put it back on tonight and see if it works. In the mean time, I've already gotten a new battery, so let's hope this resolves it.
__________________
'93 LS-L named "Samantha Victoria Xavier"...Sam for short. All new and improved custom built engine with forged internals, lowered compression, upgraded cams and a stage III supercharger. AMR Engineering struts, Custom exhaust --All 3 Subaru cats removed, and replaced with 2 high flow mustang cats-- Cross-drilled & Slotted rotors, steel braided brake lines, bypassed stock Tranny cooler replaced with aftermarket B&M super-cooler, and a K&N drop in air filter.
|
|
#6
09-20-2016, 05:02 PM
|
||||
|
||||
|
Re: Alternator question
How did they repair the regulator? Thought they were out. Christian still has our back. Glad it all worked out
__________________
. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . Last edited by svxcess; 09-23-2016 at 01:28 AM.
|
 |
|
|
Hybrid Mode
