96 VP 4.3L NC type motor

[superpop]

Hi Folks, I am on vacation and I noticed that my electric barrel type fuel pump is running all the time. Except for when I switch off the main battery switch. I do not remember it running all the time when the ignition is off and I am wondering if I have a bad relay or something else. Will letting it run for short periods of time burn up the pump.

 

[Don S]

Re: 96 VP 4.3L NC type motor

It could be a stuck relay. disconnect the green wire off the back of the alternator. If the pump stops, it's not the relay. With a volt meter check for power on the alternator terminal you removed the green wire from. If you have power there, replace the alternator, or take it to a shop and get it repaired.

 

[superpop]

Re: 96 VP 4.3L NC type motor

Thanks Don, I think the relay is ok since I can hear it click off and on when I unplug it. The alternator is super hot though and takes a while of running to get up to the 13-14 volts that I am used to seeing. Is this a repairable item on the alt or can I just replace it. Also I have been told that the alternator I have is a funky design and I might be better off with a newer design, any opinion on this. The one I have now only lasted around 40 hours.

 

[Don S]

Re: 96 VP 4.3L NC type motor

I think the relay is ok since I can hear it click off and on when I unplug it.

Clicking relays does not mean the work.

The alternator is super hot though and takes a while of running to get up to the 13-14 volts that I am used to seeing.

I explained how to test if the alternator was bad. Did you check for power off the green terminal with the wire off and the engine not runniing?????

Also I have been told that the alternator I have is a funky design and I might be better off with a newer design, any opinion on this.

I sure didn't have to replace the OEM alternators very often. Not sure about your source, but if you can't find one that will operate your fuel pumps correctly, what do you plan on doing????

The one I have now only lasted around 40 hours.

And sitting around doing nothing but corroding for 12 years.

 

[superpop]

Re: 96 VP 4.3L NC type motor

OK, so I started the boat up and when I disconnected the Green wire from the Alt the post on the alternator showed 8.7V. This was a constant with the keys off or on and the boat running or not. This alternator is only 2 years old, is this normal. Also, I probably already know the answer but can I use a car alternator or is the marine one special and what makes it special.

 

[Don S]

Re: 96 VP 4.3L NC type motor

No, you can't use a car alternator. Take your alternater to a starter/alternator repair shop and have it repaired.

 

[superpop]

Re: 96 VP 4.3L NC type motor

Do you know what the PN# is for this alternator.

 

[superpop]

Re: 96 VP 4.3L NC type motor

Based on the description below, would this alternator work with my motor.

Thanks


Item Specifics
Title: 100% NEW MERCRUISER OMC VOLVO MARINE MANDO ALTERNATOR

Condition: New


Description
DB Electrical-Starters-Alternators

DB Electrical-Starters-Alternators
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BRAND NEW ALTERNATOR
for INBOARD MARINE OMC, MERCRUISER

Internally Regulated - 65 AMPS
3-Wire Hook-Up -Tachometer Lead - Ignition protected
100% Brand New

Red Wire is for Sensor
Purple Wire is for Excitation

This 100% new Mando style alternator fits most inboard
applications on Mercruiser, OMC, Pleasurecraft,
and Volvo Penta boats manufactured after 1978.

Please verify with your original by
comparing the pictures and these part numbers:
API - 20054
Arco - 60050
Mercury - 12449, 19685, 817119, 817119-1, 817119A1, 817119A4,
98555, 817119-2
Mando - AC155603, AC155604, AR150, AR150AA, AR150AR, AR150BA
A000B0331, AC155603
Crusader - 39200
OMC - 3854182, 3853853, 3854809, 3853853, 987774,
985465, 983424, 985466, 984565, 986008, 988247, 3860769
Volvo Penta - 3854809-5, 3854182-7, 3853853-4, 3850927-9
Marine Power - 1210-000
Sierra - 18-5965, 18-5966

Fits these applications and others:
MANDO MARINE
VARIOUS MODELS 85-On Various Engines ALL

MERCURY MARINE MERCRUISER & IB
MODEL 120 89-84 4 Cylinder (153 GM) Mando
MODEL 140 86-84 4 Cylinder (181 GM) Mando
MODEL 160 97-96 6 Cylinder (262 GM) Mando
MODEL 160 95-87 6 Cylinder (262 GM) Mando
MODEL 160 95-87 8 Cylinder (305 GM) Mando
MODEL 165 87-84 4 Cylinder (224 MM) Mando
MODEL 170 86-84 4 Cylinder (224 MM) Mando
MODEL 175 92-87 6 Cylinder (262 GM) Mando
MODEL 180 87-84 4 Cylinder (224 MM) Mando
MODEL 180 97-96 6 Cylinder (262 GM) Mando
MODEL 180 95-93 6 Cylinder (262 GM) Mando
MODEL 180 92-90 8 Cylinder (305 GM) Mando
MODEL 185 97-96 6 Cylinder (229 GM) Mando
MODEL 185 95-84 6 Cylinder (229 GM) Mando
MODEL 185 87-85 6 Cylinder (262 GM) Mando
MODEL 190 86-84 4 Cylinder (224 MM) Mando
MODEL 190 97-96 8 Cylinder (305 GM) Mando
MODEL 190 95-93 8 Cylinder (305 GM) Mando
MODEL 198 84-80 8 Cylinder (305 GM) Mando
MODEL 200 85-84 8 Cylinder (305 GM) Mando
MODEL 205 85-84 6 Cylinder (229 GM) Mando
MODEL 205 97-96 8 Cylinder (305 GM) Mando
MODEL 205 95-92 8 Cylinder (305 GM) Mando
MODEL 228 85-80 8 Cylinder (305 GM) Mando
MODEL 230 95-85 8 Cylinder (305 GM) Mando
MODEL 250 85-80 8 Cylinder (350 GM) Mando
MODEL 255 85-80 8 Cylinder (350 GM) Mando
MODEL 260 93-88 8 Cylinder (350 GM) Mando
MODEL 270 82-81 8 Cylinder (454 GM) Mando
MODEL 288 82-80 8 Cylinder (305 GM) Mando
MODEL 300 89-84 8 Cylinder (350 GM) Mando
MODEL 320 90-87 8 Cylinder (350 GM) Mando
MODEL 330 /BW 87-80 8 Cylinder (454 GM) Mando
MODEL 340 92-85 8 Cylinder (454 GM) Mando
MODEL 350 97-86 8 Cylinder (350 GM) Mando
MODEL 350 85-80 8 Cylinder (350 GM) Mando
MODEL 454 97-93 8 Cylinder (454 GM) Mando
MODEL 454 92-87 8 Cylinder (454 GM) Mando
MODEL 465 94-93 8 Cylinder (8.2L - 502) Mando
MODEL 465 92-90 8 Cylinder (8.2L - 502) Mando
MODEL 470 85-80 4 Cylinder (224 MM) Mando
MODEL 485 85-80 4 Cylinder (224 MM) Mando
MODEL 488 85-80 4 Cylinder (224 MM) Mando
MODEL 500 97-93 8 Cylinder (8.2L - 502) Mando
MODEL 500 92-90 8 Cylinder (8.2L - 502) Mando
MODEL 502 97-93 8 Cylinder (8.2L - 502) Mando
MODEL 502 92-90 8 Cylinder (8.2L - 502) Mando
MODEL 600SC 96-91 8 Cylinder (8.2L - 502) Mando
MODEL 800SC 96-93 8 Cylinder (9.4L - 572) Mando
MODEL 898 84-80 8 Cylinder (305 GM) Mando
VARIOUS MODELS 95-87 4 Cylinder (181 GM) Mando
VARIOUS MODELS 97-96 6 Cylinder (262 GM) Mando
VARIOUS MODELS 95-87 6 Cylinder (262 GM) Mando
VARIOUS MODELS 97-85 8 Cylinder (305 GM) Mando
VARIOUS MODELS 97-94 8 Cylinder (350 GM) Mando
VARIOUS MODELS 93-87 8 Cylinder (350 GM) Mando
VARIOUS MODELS 97-93 8 Cylinder (454 GM) Mando
VARIOUS MODELS 92-87 8 Cylinder (454 GM) Mando
VARIOUS MODELS 97-93 8 Cylinder (8.2L - 502) Mando
VARIOUS MODELS 92-90 8 Cylinder (8.2L - 502) Mando
VARIOUS MODELS 97-93 8 Cylinder (8.9L - 540) Mando
VARIOUS MODELS 92-90 8 Cylinder (8.9L - 540) Mando
VARIOUS MODELS 97-93 8 Cylinder (9.4L - 572) Mando

OMC MARINE INBOARD & V-DRIVE
ALL MODELS 85-On Various Engines with Mando
V-DRIVE 3.0L 1994-1996
V-DRIVE 4.3L 1994-1996
V-DRIVE 5.7L 1994-1996
V-DRIVE 5.8L 1993-1996
V-DRIVE 7.4L 1993-1996

PLEASURECRAFT MARINE
VARIOUS MODELS 85-On Various Engines Mando

THERMO ELECTRON MARINE
VARIOUS MODELS 85-On Various Engines Mando

VOLVO PENTA
Various Models 3.0L 1995-1996
Various Models 4.3L 1995-1996
Various Models 5.0L Ford 1995-1996
Various Models 5.7L 1996
Various Models 5.8L 1995-1996
Various Models 7.4L 1996
Various Models 8.2L 1996