1973 460 4x4 charging problem...
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Mountain Pass
Joined: Feb 2006
Posts: 174
Likes: 1
1973 460 4x4 charging problem...
i have 2 trucks a 72 shortbed with a 390, and a 73 longbed with a 460 conversion 4x4. the main problem is my 73 never fully charges the battery. every once and a while i have to charge it again. i have a new optima battery and tried 3 altenators. maybe the wires are mixed up on the altenator. i have a mallory distributor and ignition system. i have changed the led eye that replaces the points and the mallory coil. it seem to charge at like 12 volts. also i tried taking the voltage regulator out of my 72 to see if would charge stronger but no luck. any ideas?
also i am looking for the front drive shaft to this truck it has the divorced transfer case i believe because its in the middle of the truck. it has a manual tranny. i do not have much money.some guy said he would sell me his drive shaft for 85 that is 31". not sure if it will work.
this is a gorgeus 73 with no rust resuced from california i paid a lot for the truck when i had money. i look forward to repainting and showing it off.
thank you sincerely, mike murray
feel free to email (Click Here to find out why email addresses are removed from posts.)
also i am looking for the front drive shaft to this truck it has the divorced transfer case i believe because its in the middle of the truck. it has a manual tranny. i do not have much money.some guy said he would sell me his drive shaft for 85 that is 31". not sure if it will work.
this is a gorgeus 73 with no rust resuced from california i paid a lot for the truck when i had money. i look forward to repainting and showing it off.
thank you sincerely, mike murray
feel free to email (Click Here to find out why email addresses are removed from posts.)
Thread Starter
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Mountain Pass
Joined: Feb 2006
Posts: 174
Likes: 1
another thing i forgot...
it used to flicker the lights mostly on high beams the eventualy start backfiring. i have not driven it at night but it does not do it as much but that problem is still there. i think it has to do woth not enough charging?
thanks again.
thanks again.
Postmaster
Joined: Apr 2000
Posts: 2,838
Likes: 6
From: SD
Welcome to FTE, sounds like a good pickup... First, use a voltmeter and check battery voltage with engine running. With a good alternator you will get a 13-15 volt reading. Look the alt, battery and regulator connections making sure they are clean and tight. The regulator grounds through the mounting bolts, so make sure there is a tight clean ground there too. Also measure the voltage a the large wire on the alternator with engine running. Let us know what you find, and we can go from there.
Marty
Marty
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Mountain Pass
Joined: Feb 2006
Posts: 174
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well i have a volt meter and it was only reading 12 at the battery. i will check at the altenator and clean evrything real good. it runs real smooth and will idle as long as you want it to drink gas. it ia show truck inm the making i just need to sole this little problem. i drive it now and just charge it every week or so. thanks for your help.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Welcome to FTE!
First off Users shoudn't expect the vehicle charging system to fully charge the battery.
They aren't designed to do this.
Use a battery charger like you did.
The voltage regulator is what signals the alternator boost power output.
If you are testing this charging value at Idle .. The VR doesn't kick in until about 850 rpm so charging values at IDLE mean nothing
Do the charging tests with different loads as well with the engine running at about 1000rpm
Test with:
headlights ON
then the heater ON
then the Wipers ON
to see what changes the charging system does under this load
Also may I add some FTE posting tips
All users have 60 minutes to EDIT their own posts to either add or remove text.
All users also have 10 minutes to EDIT the thread title.
FTE also prefers that ALL tech info be kept on the site rather than being sent by e-mail which of course is why e-mail addresses are filtered out.
Enjoy the Ride on FTE
First off Users shoudn't expect the vehicle charging system to fully charge the battery.
They aren't designed to do this.
Use a battery charger like you did.
The voltage regulator is what signals the alternator boost power output.
If you are testing this charging value at Idle .. The VR doesn't kick in until about 850 rpm so charging values at IDLE mean nothing
Do the charging tests with different loads as well with the engine running at about 1000rpm
Test with:
headlights ON
then the heater ON
then the Wipers ON
to see what changes the charging system does under this load
Also may I add some FTE posting tips
All users have 60 minutes to EDIT their own posts to either add or remove text.
All users also have 10 minutes to EDIT the thread title.
FTE also prefers that ALL tech info be kept on the site rather than being sent by e-mail which of course is why e-mail addresses are filtered out.
Enjoy the Ride on FTE
Last edited by Mil1ion; Feb 13, 2006 at 03:54 PM.
Thread Starter
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Mountain Pass
Joined: Feb 2006
Posts: 174
Likes: 1
there are two version of voltage regulators, i am thinking of replacing it anyway. i think the higher priced one is electronic. is there a difference? i will be out in the cold working on this all day tomorrow ill post what the results were. ps. bought a nice new battery charger at walmart.
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