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81 CJ 258 starting problem
Jeep and Willys Vehicles Discussions on Jeep and Willys vehicles. (rec.autos.makers.jeep+willys)
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#11
 
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Re: 81 CJ 258 starting problem -
03-31-2007
, 12:18 PM
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bllsht wrote: I take it you've never heard of ohm's law. Higher resistance doesn't increase current flow. Unless you've designed switches, you probably don't know much about closure rate and contact pressure to minimize arc-over, either. Slow or soft closure allows momentary arcing which is a great way to weld contacts. Hard closure also helps overcome the oxidation layer that forms almost instantly on most pure metals like the copper used in those starter relays. All that is an effect of high resistance restricting the current through the solenoid coil which gives you a weak closure. |
by low current flow.
#12
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"Greg" <gregl... (AT) hotmail (DOT) com> wrote in message news  _uPh.4647$aG1.3248 (AT) pd7urf3no (DOT) ..I read the rest of the replies, mostly argueing about resistence, anyway Mike I cleaned all connections on bat. solinoid, and alt. only one I didn't clean was one down at starter, and starter and bat cables are about a year old. Bill mentioned at some point bat. was disconnected while running, that didn't happen, but when I thought the bat. was dead the other day I used my battery charger which has a setting for 70 amps to start a vehicle, which I used and it arced when disconncting it. I replaced everything on engine when I put a rebuilt in 1 1/2 years ago, all but alt. Am I now ready for that? First start with a known good battery. A fully charged battery should read around 12.65 volts. The voltage reading you got when ckecking your battery, 11.96, indicates a battery that is 80% DISCHARGED. "Greg" <gregl... (AT) hotmail (DOT) com> wrote in message news:4DjPh.2163$DE1.150 (AT) pd7urf2no (DOT) .. Here's the story, jeep hasn't ran for couple months, went to start it the other day to move it out of garage, it was dead, jumped it, moved it out of garage, tried starting again, just click click, click, I figured battery was gone as this is the same one I left lights on for a week last year, everyone said wouldn't come back, but it did, been fine for the year. I was all ready to go get new battery and figured I would put the meter on it to make sure, it was 11.96, that sounds like a fully charged bat. to me, so I replaced the solinoid, thinking that was it. On first start up, when I turned the key to on there was a buzzing for about 10 seconds, about as long as it took me to put gas to floor twice to choke it, anyway started fine, drove it up and down road, and parked in driveway, shut it off and restarted it fine. Today when I went to start it, it went click, click, click, then started, but started didn't stop starting, I turned the key to off, still running and starter still starting, daughter yells turn it off, I hold up key to her!!, so I stick it back in and turn it to start again and it stops the starter, so I move the jeep to where I wanted it, start it 2 times fine, so what the hell was that???????- Hide quoted text - - Show quoted text - |
#13
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"Greg" <greglc84 (AT) hotmail (DOT) com> wrote in message news _uPh.4647$aG1.3248 (AT) pd7urf3no (DOT) ..I read the rest of the replies, mostly argueing about resistence, anyway Mike I cleaned all connections on bat. solinoid, and alt. only one I didn't clean was one down at starter, and starter and bat cables are about a year old. Bill mentioned at some point bat. was disconnected while running, that didn't happen, but when I thought the bat. was dead the other day I used my battery charger which has a setting for 70 amps to start a vehicle, which I used and it arced when disconncting it. I replaced everything on engine when I put a rebuilt in 1 1/2 years ago, all but alt. Am I now ready for that? First start with a known good battery. A fully charged battery should read around 12.65 volts. The voltage reading you got when ckecking your battery, 11.96, indicates a battery that is 80% DISCHARGED. |
Actually, 11.96 is 94.5% of 12.65. This makes the discharge rate to be less
than 6%.
#14
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If the connection down at the starter is bad enough to cause that, then the cable should get hot. I would try it a few times to see. Other than that, the low battery might be the only issue. When the starter draws on the low battery arcs can seem to happen for whatever reason..... ;-) Mike Greg wrote: I read the rest of the replies, mostly argueing about resistence, anyway Mike I cleaned all connections on bat. solinoid, and alt. only one I didn't clean was one down at starter, and starter and bat cables are about a year old. Bill mentioned at some point bat. was disconnected while running, that didn't happen, but when I thought the bat. was dead the other day I used my battery charger which has a setting for 70 amps to start a vehicle, which I used and it arced when disconncting it. I replaced everything on engine when I put a rebuilt in 1 1/2 years ago, all but alt. Am I now ready for that? "Greg" <greglc84 (AT) hotmail (DOT) com> wrote in message news:4DjPh.2163$DE1.150 (AT) pd7urf2no (DOT) .. Here's the story, jeep hasn't ran for couple months, went to start it the other day to move it out of garage, it was dead, jumped it, moved it out of garage, tried starting again, just click click, click, I figured battery was gone as this is the same one I left lights on for a week last year, everyone said wouldn't come back, but it did, been fine for the year. I was all ready to go get new battery and figured I would put the meter on it to make sure, it was 11.96, that sounds like a fully charged bat. to me, so I replaced the solinoid, thinking that was it. On first start up, when I turned the key to on there was a buzzing for about 10 seconds, about as long as it took me to put gas to floor twice to choke it, anyway started fine, drove it up and down road, and parked in driveway, shut it off and restarted it fine. Today when I went to start it, it went click, click, click, then started, but started didn't stop starting, I turned the key to off, still running and starter still starting, daughter yells turn it off, I hold up key to her!!, so I stick it back in and turn it to start again and it stops the starter, so I move the jeep to where I wanted it, start it 2 times fine, so what the hell was that??????? |
#15
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"Mike" <mik (AT) localnet (DOT) com> wrote in message news:ClwPh.5969$ya1.4904 (AT) news02 (DOT) roc.ny... "Greg" <greglc84 (AT) hotmail (DOT) com> wrote in message news _uPh.4647$aG1.3248 (AT) pd7urf3no (DOT) ..I read the rest of the replies, mostly argueing about resistence, anyway Mike I cleaned all connections on bat. solinoid, and alt. only one I didn't clean was one down at starter, and starter and bat cables are about a year old. Bill mentioned at some point bat. was disconnected while running, that didn't happen, but when I thought the bat. was dead the other day I used my battery charger which has a setting for 70 amps to start a vehicle, which I used and it arced when disconncting it. I replaced everything on engine when I put a rebuilt in 1 1/2 years ago, all but alt. Am I now ready for that? First start with a known good battery. A fully charged battery should read around 12.65 volts. The voltage reading you got when ckecking your battery, 11.96, indicates a battery that is 80% DISCHARGED. 80% discharged!? No, how about 20% discharged?. Actually, 11.96 is 94.5% of 12.65. This makes the discharge rate to be less than 6%. |
Actually about 11.88 is 100% discharged so you need to redo your math.
Like I said before, a voltage reading of 11.96 indicates an 80% discharged
battery.
#16
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"Jeff Strickland" <crwlr (AT) verizon (DOT) net> wrote in message news:szAPh.368$jZ3.275 (AT) trnddc06 (DOT) .. "Mike" <mik (AT) localnet (DOT) com> wrote in message news:ClwPh.5969$ya1.4904 (AT) news02 (DOT) roc.ny... "Greg" <greglc84 (AT) hotmail (DOT) com> wrote in message news _uPh.4647$aG1.3248 (AT) pd7urf3no (DOT) ..I read the rest of the replies, mostly argueing about resistence, anyway Mike I cleaned all connections on bat. solinoid, and alt. only one I didn't clean was one down at starter, and starter and bat cables are about a year old. Bill mentioned at some point bat. was disconnected while running, that didn't happen, but when I thought the bat. was dead the other day I used my battery charger which has a setting for 70 amps to start a vehicle, which I used and it arced when disconncting it. I replaced everything on engine when I put a rebuilt in 1 1/2 years ago, all but alt. Am I now ready for that? First start with a known good battery. A fully charged battery should read around 12.65 volts. The voltage reading you got when ckecking your battery, 11.96, indicates a battery that is 80% DISCHARGED. 80% discharged!? No, how about 20% discharged?. Actually, 11.96 is 94.5% of 12.65. This makes the discharge rate to be less than 6%. Actually about 11.88 is 100% discharged so you need to redo your math. Like I said before, a voltage reading of 11.96 indicates an 80% discharged battery. |
I'm pretty sure my cars start easily with 11.88 vDC. It's not even close to
being fully discharged.
#17
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Sorry, I don't follow you. Please 'splain me it. I'm pretty sure my cars start easily with 11.88 vDC. It's not even close to being fully discharged. |
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Posted via a free Usenet account from http://www.teranews.com
#18
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"Mike" <mik (AT) localnet (DOT) com> wrote in message news:SfOPh.5849$B25.1882 (AT) news01 (DOT) roc.ny... "Jeff Strickland" <crwlr (AT) verizon (DOT) net> wrote in message news:szAPh.368$jZ3.275 (AT) trnddc06 (DOT) .. "Mike" <mik (AT) localnet (DOT) com> wrote in message news:ClwPh.5969$ya1.4904 (AT) news02 (DOT) roc.ny... [...] First start with a known good battery. A fully charged battery should read around 12.65 volts. The voltage reading you got when ckecking your battery, 11.96, indicates a battery that is 80% DISCHARGED. 80% discharged!? No, how about 20% discharged?. Actually, 11.96 is 94.5% of 12.65. This makes the discharge rate to be less than 6%. Actually about 11.88 is 100% discharged so you need to redo your math. Like I said before, a voltage reading of 11.96 indicates an 80% discharged battery. Sorry, I don't follow you. Please 'splain me it. |
related, it is not a linear relation. First hit on google actually seems
to agree with Mike. http://www.wind-sun.com/PDF_Files/battvoltandsoc.pdf
Quote:
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I'm pretty sure my cars start easily with 11.88 vDC. It's not even close to being fully discharged. |
that's your battery's voltage at rest and it still has that much charge, I
imagine you must have a very large battery.
Ivan
#19
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STATE-OF-CHARGE TEST at about a quarter down the page of: http://www.repairfaq.org/ELE/F_Car_B...CARBATTERY_003 God Bless America, Bill 0|||||||0 mailto:LWHughes3rd (AT) aol (DOT) com http://www.billhughes.com/ "Jeff Strickland" <crwlr (AT) verizon (DOT) net> wrote in message news:NnQPh.1776$_43.1361 (AT) trnddc02 (DOT) .. Sorry, I don't follow you. Please 'splain me it. I'm pretty sure my cars start easily with 11.88 vDC. It's not even close to being fully discharged. -- Posted via a free Usenet account from http://www.teranews.com |
#20
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After reading Bills page, me thinks I need a new battery. |
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Posted via a free Usenet account from http://www.teranews.com
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