Not Starting, Day 5!!

LarsonChef

Cadet
Joined
Jun 16, 2009
Messages
18
So I had many problems with starting a 2001 Volvo Penta 5.0 gi pefs. First it was a spak issue, then a starter and now with everything fixed, it appears to be a battery issue. I tested the voltage and its reading 12 Volts but still it wont turn over. It sounds super slugish when attempting to start, but i dont know. Could it be anything else besides a battery issue?
 

maxxman04

Petty Officer 1st Class
Joined
Mar 30, 2009
Messages
352
Re: Not Starting, Day 5!!

if you've replaced the starter and slave solenoid, ALL your connections are good, clean, and tight, then it's fair to say battery is done. a battery produces 2 things. voltage, normally 12 (some will argue 12.5) and amperage, namely CRANKING amperage, which is a whole seperate deal from voltage. the cells in a battery hold both volts and amps. as the cells deteriorate from age, use, they can't produce the cranking amps needed to turn a motor over, even if it shows 12 volts. so yes, even tho your boat has power, in the form of volts, to run the lights, radio, blower and such, it may not have the amperage to actually turn the motor over to start it. any competent shop or even most auto parts stores can tell you if the battery is good or not by putting a load test on it. batteries generally last 3-5 years in the automotive world, but less time in the marine world, due to the length of time they sit without being charged or recharged. take battery in for load test, have tester look at the date code to verify age of battery.
 

J. Mark

Petty Officer 1st Class
Joined
Sep 3, 2008
Messages
303
Re: Not Starting, Day 5!!

check your cables for corrosion too. You can check voltage at the battery and then at the starter and grounding post on the block. You should not see more than a half volt drop. If you do your cables are not up to par.
 

havasuboatman

Ensign
Joined
Mar 5, 2009
Messages
904
Re: Not Starting, Day 5!!

Bad Ground, Check Your Grounds

Check the positive cables too while you're at it. Wire brush any dirty or corroded ends. Get rid of those wingnuts (if equipped) place a grounding lock washer on both sides of the cable ends, then tighten them good and tight.
If you use wing nuts, and you can remove them with your bare hands, your battery cables are loose.
 

LarsonChef

Cadet
Joined
Jun 16, 2009
Messages
18
Re: Not Starting, Day 5!!

The battery was replaced about six months ago, and is a auto battery. I believe after numerous days and attempts of starting the boat with the combination of a little water its exposed to, I might have drawn all the power. Its being charged all night tonight, and I am bringing a jumper box tom, so hopefully I'll have a little more luck! How important is it to have a marine starter as opposed to a marine battery?
 

maxxman04

Petty Officer 1st Class
Joined
Mar 30, 2009
Messages
352
Re: Not Starting, Day 5!!

yer alot better off investing in a marine/rv battery. more corrosion resistant, holds charge longer, holds a few more cranking amps.
 

maxxman04

Petty Officer 1st Class
Joined
Mar 30, 2009
Messages
352
Re: Not Starting, Day 5!!

and to answer, you should have both. and depending on local laws concerning boats, you may be REQUIRED to have both. if yer ever stopped for inspection, could be a headache for ya.
 

Joel K

Seaman Apprentice
Joined
Feb 20, 2004
Messages
31
Re: Not Starting, Day 5!!

I would be one to argue that 12.0 volts is at least .5 too low to get anything but a perfect engine started. It should read at least 12.8 fresh off a charger. Any battery whose voltage is only as high as it's rated voltage is low.
A 1.5 battery flashlight battery should read 1.8V out of the box or you have an old battery. At 1.5V it's very weak, at 1.4V it's as good as dead.
 

mkast

Lieutenant Commander
Joined
Nov 6, 2002
Messages
1,934
Re: Not Starting, Day 5!!

How important is it to have a marine starter as opposed to a marine battery?

Are you kidding? If a marine rated starter isn't installed, I hope it never starts.
 

CheapboatKev

Vice Admiral
Joined
Oct 4, 2008
Messages
5,813
Re: Not Starting, Day 5!!

Battery is irrevelant compared to the STARTER! Marine, No Sparks due to internal shielding. MARINE STARTER

and to answer, you should have both. and depending on local laws concerning boats, you may be REQUIRED to have both. if yer ever stopped for inspection, could be a headache for ya.


Only one is mandatory..Yep the Marine Starter


Are you kidding? If a marine rated starter isn't installed, I hope it never starts.


same thing I thought
 

bustermin

Banned
Joined
Apr 13, 2009
Messages
315
Re: Not Starting, Day 5!!

Have your battery "Load Tested" if it passes then i would change the battery cables (be sure to use "Marine" grade cables as they are "Tinned" to prevent corrosion).
 

SPDFRK68

Cadet
Joined
Jun 22, 2009
Messages
9
Re: Not Starting, Day 5!!

I would check the voltage while cranking the motor if it drop below 10v it will not start most electronic igniton systems require a minimun of 9v to fire below that it will just crank till it dead also if it is efi it will take a little more.
 
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