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#1
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12V tap in
Hey Gurus,
What/where is the best/easiest place to tap into 12V with the key turned ON? 1981 300d. Maybe on the key tumbler under the dash? Thanks Pat |
#2
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Cigarette lighter, I would think.
__________________
Mac 2002 e320 4matic estate│1985 300d│1980 300td Previous: 1979 & 1982 & 1983 300sd │ 1982 240d “Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22 |
#3
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what are you powering?
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#4
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X2. That should help determine where to borrow the power from. |
#5
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Yes if the load is heavy say an amplifier or subwoofer in the trunk. You want to switch a relay on to provide lots of amperage through the relays secondary contacts.
Even the cigarette lighter circuit could power that relays primary circuit very easily. You do not want to put heavy current through the key switch or it's lightweight relay if it has one. |
#6
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Relaying 12v to the glow plug relay for manual glow.
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#7
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Maybe try from the existing glow plug circuit just a though.
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#8
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Thanks. Good idea if I can find it.
PR |
#9
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Why does it have to be switched? it'll only have current if you press the button, right?
__________________
General George - 1967 Land Rover 2a SWB 1983 OM617 Turbo |
#10
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Doesn't have to be, just chose to do it the way.
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#11
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Nice safety precaution especially if you have any kids.
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#12
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I don't remember how the w123 has it but many cars turn the switched 12v off when you crank it. Wouldn't that mean that the glow plugs go off while you're trying to start the car?
__________________
General George - 1967 Land Rover 2a SWB 1983 OM617 Turbo |
#13
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Hopefully someone will chime in that knows for sure. That would change my plans if sure.
PR |
#14
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Quote:
When i was figuring out the wires in my truck i connected a horn to them and then listened for which switch would make a sound
__________________
General George - 1967 Land Rover 2a SWB 1983 OM617 Turbo |
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