Strange one here:

My 10amp fuse for the guages keeps blowing. As soon as you put a fuse it, bang it goes straight away. Just for curiosity's sake I put in a 15A and it blew, tried a 30 and it was ok...but it got pretty hot quickly.

Soooo...I quickly checked (it was toooooooo hot to spend time under the bonnet of a hot car) the makeshift wiring I did for the tacho feed and it's all good, not touching anything.

Has anyone else had this problem? Any ideas?

Cheers guys!

a friend of mine had the same problem with his big taco in his corona, he would wire it all up and it kept blowing fues, so he up'ed the gauge of wire and that sold the problem

Righteo thanks dude!...the only thing is that this wiring has been there for almost a year now...Wouldn't it have blown fuses straight away if it was too thin? Or is it one of those things that just wears away over time? Electronic problems are beyond me lol

Mate what are you doing. Dont go putting bigger fuses. You could possibly burn your car to the ground or do some severe damage to wiring in the mentioned vehicle. If you dont know what your doing dont play. Could become a very costly excersise for you. It sounds like you have a short somewhere. When you refer to guages which ones? If they are aftermarket disconnect them and recheck the wiring from scratch. Something is definetly not right.

Regards

Mate what are you doing. Dont go putting bigger fuses. You could possibly burn your car to the ground or do some severe damage to wiring in the mentioned vehicle. If you dont know what your doing dont play. Could become a very costly excersise for you. It sounds like you have a short somewhere. When you refer to guages which ones? If they are aftermarket disconnect them and recheck the wiring from scratch. Something is definetly not right.

Regards

Mate firstly just relax and read his post, he said he didnt feel comfortable running bigger fuses, hence why he isn't. Secondly he asked for help, got it, and is replacing the wiring in question as mentioned. I think u were jumping the gun just a bit.

OK OK it wasnt that bad, but I can't stand it when ppl have power trips (like this one).

Mate firstly just relax and read his post, he said he didnt feel comfortable running bigger fuses, hence why he isn't. Secondly he asked for help, got it, and is replacing the wiring in question as mentioned. I think u were jumping the gun just a bit.

OK OK it wasnt that bad, but I can't stand it when ppl have power trips (like this one).

Power Trip HA... dont think so.. Re running bigger fuses Quote "Just for curiosity's sake I put in a 15A and it blew, tried a 30 and it was ok...but it got pretty hot quickly." This could lead to a major failure or even frying the whole car. I will quote again "Electronic problems are beyond me"
I dont have an issue with people asking for help etc. I am also happy to help and advise where possible. But when you see statements like the above the person attempting to fix the problem should tread carefuly cause it could turn sour.. Killbily not having a go at you for trying just be cautious with watch your doing..
Parker i will quote you now. "Mate firstly just relax and read his post, he said he didnt feel comfortable running bigger fuses, hence why he isn't." Read his post further up on his post he states he ran bigger fuses. He was previously and now he isnt.
Now lets all get off our power trip and let the fellow try and sort his problem..

Regards

Mate firstly just relax and read his post, he said he didnt feel comfortable running bigger fuses, hence why he isn't. Secondly he asked for help, got it, and is replacing the wiring in question as mentioned. I think u were jumping the gun just a bit.

OK OK it wasnt that bad, but I can't stand it when ppl have power trips (like this one).
Thought that one through didn't we? :roll:

ok every one chill. kb i think that one of your power wires are shorting to ground. so it blows the 15 A fuse. but since you said your running fairly small wire it is alowing only as much current through because of the resistance of the wire. saw a short from a mates driving light cause someone bumped it with a trolley. the wire glowed red like a toaster element and welded itself to the chasis and to other wires after the head had melted the coating. angry

wrexed, chill out mate :) I put the bigger fuses in only for a few seconds each. There's no way I'd run them continually, hence my comment. No need to jump down my throat...

My comment of electrical problems being beyond me was a bit vague, I meant I don't know if electrical wire "wears out". Sorry for misleading. I'm quite aware of the dangers of continually running higher Amp fuses etc. Again which is why I only put the higher fuse in for a few seconds just to see because I'd ran out of 10amp fuses.

Anyway...I'll just have to keep looking for the short. Nothing with the wiring for the tacho is shorting, it's never moved since it was put in and it didn't short then. I see no reason for it to be shorting now.

My comment of electrical problems being beyond me was a bit vague, I meant I don't know if electrical wire "wears out". Sorry for misleading. I'm quite aware of the dangers of continually running higher Amp fuses etc. Again which is why I only put the higher fuse in for a few seconds just to see because I'd ran out of 10amp fuses.



The insualtion wares out due to cars usually having wires to small for long life if u get my meaning, they would be rubbing together and causing an insulation fault, that will cause high current also a bad earth can also do so. If you do rewire it use a bigger cable cause it will have less resistance than a smaller one so it will not get so hot. But in my job high current means a short somewhere along the line, you'll have to trace it back.

I had this problem with my parkers fuse. They kept popping. It was because i had water in the fuse box.

My cousin had a crappy old laser that kept blowing fuses so he replaced them with nails :confused:

I skimmed through the posts but couldn't see a definitive answer, so:
First thing i would do is replace the wire, something abit thicker than the one you have. If you're drawing too much current for the wire to handle, even if it's a tiny amount, the wire will gradually get "burnt out". Which is probably why it's happened slowly. Easiest way to test is grab a wire thats abit thicker, hook it up to a 10A fuse and then connect it to the battery-power of the tacho. If the fuse doesn't blow, you know it's either the wire can't handle the power or there is a short. Either way i'd just replace the wire and that should solve either problem.

Righteo thanks dude!...the only thing is that this wiring has been there for almost a year now...Wouldn't it have blown fuses straight away if it was too thin? Or is it one of those things that just wears away over time? Electronic problems are beyond me lol

The only thing that I can offer is check the wiring cover for any heat cracks, maybe its earthing itself out on the body somewhere... Like you said yeh you should of been blowing fuses from day one...

I had this problem with my parkers fuse. They kept popping. It was because i had water in the fuse box.

My cousin had a crappy old laser that kept blowing fuses so he replaced them with nails :confused:

LMFGDAO.... That reminds me of a "Bush Mechanics" Show that I have seen.... Dodgy and it works, but hmmm I think the car will be fooked in no time

LMFGDAO.... That reminds me of a "Bush Mechanics" Show that I have seen.... Dodgy and it works, but hmmm I think the car will be fooked in no time

Ive seen that show it was awesome :) Is it the one with the Aborigines and the old VB ? Man they did funny **** to that car :D

If you put a 15A fuse in and it blows instantly that means you're drawing more than 15A through that circuit all the time, so the wire is obviously quite capable of maintaining a 15A current.

Don't replace the wire - find the short circuit and fix it.

And when you say instantly.. did you mean with the ignition on or do you mean that you drop the fuse into the holder and it goes bang?

Ive seen that show it was awesome :) Is it the one with the Aborigines and the old VB ? Man they did funny **** to that car :D


Yeah thats the show lol, using tree trunks for axels :nuts:

Strange one here:

My 10amp fuse for the guages keeps blowing. As soon as you put a fuse it, bang it goes straight away. Just for curiosity's sake I put in a 15A and it blew, tried a 30 and it was ok...but it got pretty hot quickly.

Soooo...I quickly checked (it was toooooooo hot to spend time under the bonnet of a hot car) the makeshift wiring I did for the tacho feed and it's all good, not touching anything.

Has anyone else had this problem? Any ideas?

Cheers guys!


Hey KB...is the 10A fuse for all guages, or just the tacho you wired up?

Many good notes above here - replace or bypass wiring etc. But, perhaps the gauge is busted? Internal fault? Hence is ded.
Nails as fuses.... yeah..... :doubt:

Sounds like a dead short KB.

Disconnect all electrical items on that circuit and put in a new 10A fuse.
Reconnect each item 1 at a time until the fuse blows, that will give you the problem item.
If its the tacho, open her up if you can and look for a shorted wire or burnt bit.

You may also have a wire pinched against bare metal which has worn through and given the circuit a dead short to earth, the test proceedure is the same.

Gimme a yell if you need more help...:D

I had this problem with my parkers fuse. They kept popping. It was because i had water in the fuse box.

My cousin had a crappy old laser that kept blowing fuses so he replaced them with nails :confused:

LOL lets hope he doesn't get a current overflow. Or its bye bye laser! :P


Many good notes above here - replace or bypass wiring etc. But, perhaps the gauge is busted? Internal fault? Hence is ded.
Nails as fuses.... yeah..... :doubt:

Haha mate, you wouldn't believe how many people ACTUALLY run nails as fuses in their houses. Hope they have Home and Contents insurance. lol

Hey KB...is the 10A fuse for all guages, or just the tacho you wired up?

It's the dash guages...the wires I wired up were done because it wouldn't work with the stock wiring...same tacho issue I've had since the conversion.

Cheers for the help guys, looks like I'll have to get a new multimeter and go hunting!

Sounds like a dead short KB.

Disconnect all electrical items on that circuit and put in a new 10A fuse.
Reconnect each item 1 at a time until the fuse blows, that will give you the problem item.
If its the tacho, open her up if you can and look for a shorted wire or burnt bit.

You may also have a wire pinched against bare metal which has worn through and given the circuit a dead short to earth, the test proceedure is the same.

Gimme a yell if you need more help...:D

QLD's Bush Mechanic has spoken..

Couldn't have said it much better myself..

If you're putting a bigger fuse in there and its heating up.. the wiring seems to be all good.. So must be a short!

SuFz :rant: