12v Palm Beach Buggy 351 Windsor Alternator and voltage regulator issues

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PWJouster
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12v Palm Beach Buggy 351 Windsor Alternator and voltage regulator issues

Post by PWJouster » Mon Jun 17, 2019 7:45 am

We have a swamp buggy thats been giving us overcharging issues. Dual battery setup-Blue tops, Napa/autozone standard Voltage regulator, and an old timer re manufactured Mastercraft 1g alternator.

idle is near 12+- volts and with RPM we peak on the meter at 16, but at the alternator we are putting out 17+.
it has fried a battery and swelled another.
brand new batteries and VR, no dice.
new Ground strap on VR and Alternator, no dice
New alternator, No dice
Rewire, No dice

We are going to attempt a one wire alternator with built in VR, but we arent sure what will happen.




We are eating up batteries and replacing voltage regulators to no avail.
anyone have any tips on overcharge issues?
Only a few LEDs and no sound, could power be under utilized? What about throwing on halogenlights and a fridge?
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2018 Powerwagon-6.4 Hemi
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Thuren Tuned King 3.0 & 2.5 Pintop Stage 3/2
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Baja design and Rigid Industries
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Retired BLM Rig
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Re: 12v Palm Beach Buggy 351 Windsor Alternator and voltage regulator issues

Post by Retired BLM Rig » Mon Jun 17, 2019 7:19 pm

Check all your grounds. A corrupt ground path can mask true system voltage resulting in a overcharge condition. A voltage drop test will isolate where the bad connection is.

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Re: 12v Palm Beach Buggy 351 Windsor Alternator and voltage regulator issues

Post by PWJouster » Mon Jun 17, 2019 7:37 pm

We ran new grounds from the regulator to frame and from alternator case to frame.

Do we need to ground the VR to the Alt?
Does the Alt need a direct ground?
Engine block ground is on the opposite side and back side of the block to the frame rails, Which was an box chevy I think?
Can too many redundant grounds cause fielding issues if the grounds are carrying different resistance?
2018 Powerwagon-6.4 Hemi
Nanny kill switch and Locker Bypasses
Thuren Tuned King 3.0 & 2.5 Pintop Stage 3/2
17 Method NV-Toyo RT 35
Evo On-Demand Swaybar Disconnect
S&B Intake-Mufflex-Magnaflow/resonator delete
SPOD
On-Board air ARB CKMTA12
Baja design and Rigid Industries
Purple Cranium Spider dif guards
Pedal Commander

User avatar
PWJouster
250_Posts
250_Posts
Posts: 336
Joined: Wed Dec 27, 2017 8:44 am
Model Year: 2018

Re: 12v Palm Beach Buggy 351 Windsor Alternator and voltage regulator issues

Post by PWJouster » Mon Jun 17, 2019 7:40 pm

Ordered a new multi meter to assist with this, for redundancy.
2018 Powerwagon-6.4 Hemi
Nanny kill switch and Locker Bypasses
Thuren Tuned King 3.0 & 2.5 Pintop Stage 3/2
17 Method NV-Toyo RT 35
Evo On-Demand Swaybar Disconnect
S&B Intake-Mufflex-Magnaflow/resonator delete
SPOD
On-Board air ARB CKMTA12
Baja design and Rigid Industries
Purple Cranium Spider dif guards
Pedal Commander


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