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I want to put a battery in the van BUT
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Stephenmarklay
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PostPosted: Sat Sep 17, 2016 5:34 pm    Post subject: I want to put a battery in the van BUT Reply with quote

I only want to do some checking on lights and stereo and such. I know I can look in the bentley but I donít want to mess this up.

I will disconnect the starter cable but what else do I need to do. I donít want anything powered in the back, no fuel pump etc. The motor is not together.
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IdahoDoug
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PostPosted: Sat Sep 17, 2016 6:38 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

I would recommend against. If you have open wiring harness connections back there, only someone pretty skilled in such matters could/should tell you that it would be OK. My concern would be twofold. One - a hot wire touching something. Two - several grounds being disconnected for the engine work might cause an issue.

Being wrong here could be expensive. I never power up a vehicle with partly disconnected wiring. And, I've never had wiring issues with a vehicle - coincidence? Heh...

Doug
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Stephenmarklay
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PostPosted: Sat Sep 17, 2016 6:39 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

IdahoDoug wrote:
I would recommend against. If you have open wiring harness connections back there, only someone pretty skilled in such matters could/should tell you that it would be OK. My concern would be twofold. One - a hot wire touching something. Two - several grounds being disconnected for the engine work might cause an issue.

Being wrong here could be expensive. I never power up a vehicle with partly disconnected wiring. And, I've never had wiring issues with a vehicle - coincidence? Heh...

Doug


Thanks Doug. I will hold off. I appreciate your input.
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IdahoDoug
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PostPosted: Sat Sep 17, 2016 11:15 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

Good call. Causing a wiring harness issue can be heartbreaking for a hobbyist. Dealing with burnt electrical components requires a specialist, plus some peripheral damage may only come to light years later when a partly damaged wire begins to fail intermittently. As you are realizing, it's just not worth a risk unless it is an emergency situation.
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Stephenmarklay
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PostPosted: Sun Sep 18, 2016 5:11 am    Post subject: Re: I want to put a battery in the van BUT Reply with quote

I am a bit (a lot) concerned when I fire it up the first time as I am touching so many bits.

I may have to have you over for pizza and beer in the spring when I am ready!
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davideric9
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PostPosted: Mon Sep 19, 2016 3:01 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

If I was in your situation I'd pull the relays in the engine and then pull all the fuses and then put in the fuse that powers the item I needed to check. Being afraid is not the same as being careful.
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?Waldo?
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PostPosted: Mon Sep 19, 2016 3:05 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

davideric9 wrote:
If I was in your situation I'd pull the relays in the engine and then pull all the fuses and then put in the fuse that powers the item I needed to check. Being careful is not the same as being afraid.


What about the dangling unfused heavy gauge starter connection if the starter is pulled or the wiring to the alt if the starter is still in place? What about the unfused black wire to the ignition coil - what is that touching? Etc...
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Merian
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PostPosted: Mon Sep 19, 2016 3:08 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

connect to a 9 V battery

no amps to really hurt anything
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Stephenmarklay
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PostPosted: Mon Sep 19, 2016 4:01 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

Merian wrote:
connect to a 9 V battery

no amps to really hurt anything


Funny enough I have used this technique in the past.
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PostPosted: Mon Sep 19, 2016 4:02 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

I am taking Dougís advice and just not going to push my luck.
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davideric9
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PostPosted: Mon Sep 19, 2016 8:45 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

Andrew, all good points, which was the op's original question, in addition to not connecting the starter cable to the battery, what else should he watch out for. With thoughtful insight before proceeding this can be done safely, protecting any infused dangling wires, which you have now listed. Not proceeding is great, but proceeding with knowledge and care is also great.
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Michael4104
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PostPosted: Wed Sep 21, 2016 8:27 am    Post subject: Re: I want to put a battery in the van BUT Reply with quote

Why are you concerned about power to the rear? If you are concerned about the engine being turn over, pull the small wire off the starter and one of the wires off the fuel pump if that's a concern.
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Stephenmarklay
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PostPosted: Wed Sep 21, 2016 1:13 pm    Post subject: Re: I want to put a battery in the van BUT Reply with quote

Michael4104 wrote:
Why are you concerned about power to the rear? If you are concerned about the engine being turn over, pull the small wire off the starter and one of the wires off the fuel pump if that's a concern.

This was my intent. However I think everyone else pontes out that what else might be unhooked that i miss. Until one really get to that area I might as well wait. It won't really save me time. L
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