80 series ignition feed

kiwipete · Post by **kiwipete** » Sat May 02, 2015 7:24 pm

Hi all.
I am looking for a 12V ignition feed in the engine bay of my 80 series diesel truck.
It is only required for energising a relay but I do not want to go through the firewall if I can avoid it.

Has any one an idea where one is?

PS. I have had a short poke around with a multimeter but had no luck.

mudlva · Post by **mudlva** » Sat May 02, 2015 7:41 pm

Alternator trigger wire??

Big · Post by **Big** » Sat May 02, 2015 7:55 pm

what exactly are you trying to do? as I have the fsm but its a stab in the dark to help you..

Mudde1 · Post by **Mudde1** » Sat May 02, 2015 7:58 pm

there is a fuse box in the engine bay that has a ign side to it and a connector.

kiwipete · Post by **kiwipete** » Sat May 02, 2015 8:17 pm

Cheers for the input guys, I have some work to do tomorrow.

Jerry · Post by **Jerry** » Sat May 02, 2015 8:46 pm

make sure there isn't a high drain on that circuit otherwise it could cause starting issues

wjw · Post by **wjw** » Sat May 02, 2015 9:26 pm

as Mudde1 said there is a black boxmounted on the drivers side wing about 6" back from the battery box

kiwipete · Post by **kiwipete** » Mon May 04, 2015 5:14 pm

Big wrote:what exactly are you trying to do? as I have the fsm but its a stab in the dark to help you..

I need the ignition wire to operate a relay or another wire that comes alive only when the engine is running.
This relay then powers a 12V feed to the caravan to keep the fridge running when in transit.

kiwipete · Post by **kiwipete** » Mon May 04, 2015 5:17 pm

I do not have a fuse box on the drivers side that I can see, but there is one on the passenger side, but no ignition wire in there.
Here is a pic of said box.

kiwipete · Post by **kiwipete** » Mon May 04, 2015 5:18 pm

Jerry wrote:make sure there isn't a high drain on that circuit otherwise it could cause starting issues

It's activating a relay, hardly high drain.

ChurchurDan · Post by **ChurchurDan** » Mon May 04, 2015 6:31 pm

Hook onto the charge fuse, It is the warning light part of the alternator wiring. It will come live with the engine running.
Or you could get a VSR

hachi_roku · Post by **hachi_roku** » Mon May 04, 2015 7:34 pm

wjw wrote:as Mudde1 said there is a black boxmounted on the drivers side wing about 6" back from the battery box

This is right... use this little black box. ill take a pic of it if you need to? take the lid off and it has acc, battery points etc

wjw · Post by **wjw** » Mon May 04, 2015 8:09 pm

have taken a pic and spoken to pete, was wondering if its because his is a 24v

hachi_roku · Post by **hachi_roku** » Mon May 04, 2015 8:23 pm

24 volt or valve?

wjw · Post by **wjw** » Tue May 05, 2015 6:31 am

hachi_roku wrote:24 volt or valve?

24 valve

kiwipete · Post by **kiwipete** » Sat May 09, 2015 11:24 am

ChurchurDan wrote:Hook onto the charge fuse, It is the warning light part of the alternator wiring. It will come live with the engine running.
Or you could get a VSR

Yes I may have to look further into the charge fuse.
A VSR is of no use for running the caravan fridge whilst in transit I'm afraid.

Big · Post by **Big** » Sat May 09, 2015 11:26 am

kiwipete wrote:
ChurchurDan wrote:Hook onto the charge fuse, It is the warning light part of the alternator wiring. It will come live with the engine running.
Or you could get a VSR

A VSR is of no use for running the caravan fridge whilst in transit I'm afraid.

Could you not use that for the trigger on a relay that could run the fridge ?

kiwipete · Post by **kiwipete** » Sat May 09, 2015 11:28 am

Seems I do not have this fuse box between the air cleaner and battery.
The 24Valve models must be different so I will have to look further into the charge fuse idea.

Yes I had a poke around this plug too with my voltage meter but could not find what I was looking for either.

kiwipete · Post by **kiwipete** » Thu May 14, 2015 8:18 pm

It is all sorted and wired up.
I tapped onto the charge fuse under the fuse box. What a mission it was to get to it.
No pictures yet sorry.
The fridge operates from the truck now as it should.

mudlva · Post by **mudlva** » Thu May 14, 2015 8:23 pm

Alternater system

kiwipete · Post by **kiwipete** » Fri May 15, 2015 9:16 am

Well it seems using the charge fuse was not the way to go. Driving to work i noticed the instrument lights for the turbo and the cam belt were glowing evr so slightly. I unpluged the feed wire fron the charge fuse to the relay and these lights went out.

I am now thinking I may have to either put a switch inside the cabin to manually turn this relay or find the ignition wire in there?

Back to the drawing board, humph.

mudlva · Post by **mudlva** » Fri May 15, 2015 9:19 am

Alternater system

Ciggy lighter in cabin

kiwipete · Post by **kiwipete** » Fri May 15, 2015 12:29 pm

mudlva wrote:Alternater system

Ciggy lighter in cabin

Maybe or i may use an mini electronic relay i have to run the big relay. Well be naff alk current draw and shouldnt upset the charging system.

mudlva · Post by **mudlva** » Fri May 15, 2015 12:59 pm

Use the ciggy to trigger the relay.

Ive used this several times for axualry lights. Ac transformers. Air compressors etc

wjw · Post by **wjw** » Fri May 15, 2015 7:21 pm

tgere is an ignition feed in the loom to the stereo

kiwipete · Post by **kiwipete** » Sat May 16, 2015 11:24 am

Cheers guys. I will try my electronic relay first and if that fails, then I'll look at the ciggy feed etc.

skidmark · Post by **skidmark** » Sat May 16, 2015 12:16 pm

Manual fuel pump?be ign to shutoff solenoid
,or ign to reverse /inhibitor switch wiring..should be a few others around..or just tap a ign fused feed on ign switch or from fuse box

80 series ignition feed

80 series ignition feed

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