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| WIRING GETTING HOT https://ausmini.com/forums/viewtopic.php?f=2&t=102082 |
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| Author: | cooperess [ Thu Nov 30, 2023 4:00 pm ] |
| Post subject: | WIRING GETTING HOT |
My Mini is now running as it should but on closer inspection I decided to put my fingers under the dash and feel the ignition and light switch wiring. The wiring was getting hot. Is that a problem? How can I track down the reason?? |
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| Author: | 68+86auto [ Thu Nov 30, 2023 4:19 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
It should not be hot. I would start with measuring how much current is going thru it using a clamp meter which can measure DC. I assume you don't have one though. Is it just one wire getting hot or is it a certain connection? If the heat is caused by a high resistance (poor) connection then what you can do is use a multimeter at two different points to see if there is voltage drop between them. If there is significant voltage drop then between those two points somewhere is a poor or undersized connection or wire. 1V is a lot when dealing with 12V. |
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| Author: | Mick [ Fri Dec 01, 2023 7:29 am ] |
| Post subject: | Re: WIRING GETTING HOT |
The ignition switches are relatively light (and not to mention old), and generate heat through poor contacts. The main contacts are internal, but clean up the external spade connections as well to make sure its working its best. Warm might be ok given the age, but hot is bad. This is often made worse by added accessories on the circuit (radios, amps etc), so watch those as well. |
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| Author: | cooperess [ Sun Dec 03, 2023 11:35 am ] |
| Post subject: | Re: WIRING GETTING HOT |
Could my problem with the light switch getting hot be, running halogen globes in the head lights? |
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| Author: | 68+86auto [ Sun Dec 03, 2023 1:17 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
cooperess wrote: Could my problem with the light switch getting hot be, running halogen globes in the head lights? Yes if they are even slightly higher wattage (likely). The wiring and switching was only designed for the original lights. Anything higher wattage results is melted wiring or actually poorer lighting due to voltage drop. |
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| Author: | cooperess [ Sun Dec 03, 2023 1:28 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
My halogen head light is 130/90W |
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| Author: | ausdino [ Sun Dec 03, 2023 2:20 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
cooperess wrote: Could my problem with the light switch getting hot be, running halogen globes in the head lights? cooperess wrote: My halogen head light is 130/90W Are you running them through a relay/pair of relays for hi/low beam ? You are probably drawing twice the current = warm wires, also if you are using a column hi/low, the points in the stalk won't like it long term either. |
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| Author: | cooperess [ Sun Dec 03, 2023 2:22 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
No relay, so I think I will try to find lower wattage halogens. |
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| Author: | cooperess [ Sun Dec 03, 2023 2:24 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
GLB472 should do it as I am not into wiring and relays. |
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| Author: | Steam [ Sun Dec 03, 2023 3:35 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
Of course the lights have to be turned on to draw current so if your wiring is getting hot before you switch the lights on then it is something else causing the heat. If the wiring / switches only get hot when the lights are on then the globes could be the problem or some other fault. The standard lamps were 60/45 or 60/50 etc so halogens of that wattage sbould ease the problem. A relay is a relatively cheap and resonably easy fix which will save the switches and stalks even if you have the lower wattage lamps. If you want to look at a relay let me know and I will post instructions. |
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| Author: | cooperess [ Sun Dec 03, 2023 4:39 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
Steam A relay is a relatively cheap and resonably easy fix which will save the switches and stalks even if you have the lower wattage lamps. If you want to look at a relay let me know and I will post instructions. That would be handy for this non electrician. |
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| Author: | timmy201 [ Sun Dec 03, 2023 4:45 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
There are numerous "H4 relay kits" available online. They don't need any modification of the stock wiring loom. All you need is: 12V power (from a good source like the starter relay) Ground Remove the existing headlight plugs from the headlight bulbs Add the new male plug into the existing loom plug (this uses the old loom as the switching signal) Plug the new female plugs onto the headlight bulbs Done! Example https://www.onlineautoparts.com.au/prod ... /ZPN-15173 Attachment: s-l1600-10-2.jpg
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| Author: | Steam [ Sun Dec 03, 2023 4:56 pm ] |
| Post subject: | Re: WIRING GETTING HOT |
That is the easiest way. I was going to suggest a different method but that is easier for anyone electrically challenged. The H4 relay kits are even cheaper on ebay, just check whether you need to order relays or if they are included. |
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| Author: | cooperess [ Fri Dec 08, 2023 9:39 am ] |
| Post subject: | Re: WIRING GETTING HOT |
I've been internetting and think I have worked out how to check AMPS using my multimeter. Each lamp is putting out individually 4.5 amps on either low or high beam. I guess this needs to be added together, that is when high beam is on, you are using (4 x 4.5 amps) 18 AMPs. Am I on the right track?? |
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| Author: | timmy201 [ Fri Dec 08, 2023 9:46 am ] |
| Post subject: | Re: WIRING GETTING HOT |
The low beam filament should turn off when the high beam is turned on |
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