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#1 Posted : Thursday, 4 November 2004 6:45:31 PM(UTC)
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Good morning,


I have a 77 HX sedan 308 auto. The current battery has been in the car just under 2 years. This car only gets driven about once a week so it does not get much use.


My problem is if I take the car for a drive say for about 80-100km, if I leave it parked for about 10 min and try to restart it, it really struggles to turn over. It sounds as if the battery is flat. I have checked the alternator and it seems to be charging fine. The car starts no problem with jump leads connected so that rules out a fuel issue.


If I leave it for about a week it will start 1st time no problem. Like I said before it only struggles after it has been driven.


Does anyone have any advice/suggestions as a possible cause of this problem, as its driving me crazy.


Thanks for your help.

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#2 Posted : Thursday, 4 November 2004 7:16:59 PM(UTC)
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Well it sounds like a battery issue in part. Is it a good brand of battery with a good load rating. Depending on the brand of battery 2yrs is almost it for a cheapie. Also after a long run the engine is now hot, and compression will be up too. Therefore h
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#3 Posted : Thursday, 4 November 2004 7:23:08 PM(UTC)
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Thanks for the reply mate. I think the battery is a AC-Delco that I got from Holden. Since it is a worked 308 it has a Holley 700DP carb, fuel lines are all standard. You are right it does sound as if the battery is the problem since it starts OK when
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#4 Posted : Thursday, 4 November 2004 7:30:52 PM(UTC)
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Thats part of the problem....you are suffering VD....voltage drop.


Take each teminal off and file or wire brush them...start at the negative on the battey, clean it and leave it disconnected, clean where it bolts to the body. Do the same to the posi

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#5 Posted : Thursday, 4 November 2004 7:39:20 PM(UTC)
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Thanks for the suggestion, I will give it a go on the weekend to see if it makes a difference.


By the way could anyone recommend a good battery that does not mind being left unused for a while. I have heard that "Optima" batteries are goo

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#6 Posted : Thursday, 4 November 2004 7:49:51 PM(UTC)
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get a small truck battery with high CC amps (cold cranking) Somewhere around 500 should be Ok, that will help with the voltage drop.


I had the same problem until I installed fatter battery lines from the battery to the starter. Plus the earth shou

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#7 Posted : Thursday, 4 November 2004 8:22:50 PM(UTC)
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It sounds like a starter motor problem to me. When hot a starter motor requires more current to drive it hence the struggling. Voltage drop caused by the long leads is probably compounding the problem.


I once took my car to an auto electrician for

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#8 Posted : Thursday, 4 November 2004 10:03:49 PM(UTC)
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I have had battery problems for years as my cars only come out now and then.On the advice of my auto elec I went and bought 2 calcium batteries. diconnect after use if they are going to sit for a while and the battery will sit on the shelf for 2 years and
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#9 Posted : Friday, 5 November 2004 2:46:53 AM(UTC)
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Hello
Had this same problem many years back...with I dare say an XE Falcon. The battery leads were too thin for the extra current required to crank over the warm engine. Ran thicker leads and the problem was fixed.


Sounds like some of the other sug

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#10 Posted : Friday, 5 November 2004 7:51:05 AM(UTC)
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Sam I have had the same problem many times over 20 years i would sas the main pob is the starter motor pulling big curent when hot take car for drive then go home (let get hot)turn of wait about 3 minutes try to start it should play up only crank few tim
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#11 Posted : Friday, 5 November 2004 4:38:28 PM(UTC)
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Thanks for all the advice guys, much appreciated.


I have got a high torque starter motor in the car, so I dont think the problem is with the starter motor ??


I will try to replace the battery and see what happens.


Once again thanks for

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