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| Thread ID: 75430 | 2006-12-28 23:07:00 | What a holiday festival (car related). | Nomad (952) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 510562 | 2006-12-28 23:07:00 | Drive belt failed in the car and we got it fixed at a chain store as the garage we use are on annual break. They tend to do electrical or tyres but said the will do it. They don't allow you to see them how they work. W needed a jump start on Xmas evening and on the other days as well. Anyway, they walked to Repco to buy the part, lol. Got it installed and the next day this morning the drive belt fell off, we drove to them after a jump start and using biceps to steer the car as power steering was off. They fixed it and instead went to Repco and get a new belt, one appeared to be too long so he went back and get a another one. Funny, I asked him at the start if its the right size and spec'd belt and he said "yeah" and then he had to do repeat runs to Repco, LOL. This time we saw them how to do it, I think we do our own drive belt on the other vehicle. What can be worst than a belt falling out of the car. We drove around 2x and failed to find the belt, we may drive around the route he drove last night if it fell out then ......:waughh: Here is a question. Jump start, he tended to plug the the +ve to +ve and the -ve to -ve. I read online, books and instructions off jumper leads and it says +ve to +ve and -ve on boosting car and on the failed car connect to metal body of the car. That didn't work this morning, so we used the other way. Have I been misinformed or ... |
Nomad (952) | ||
| 510563 | 2006-12-29 00:02:00 | First off. Dose the car have fuel injection. If it dose the fuel injection monitoring system is controlled by a computer and it is not recomended that you use jumper leads to start because, the sudden surge in voltage/amps can do damage to the computer. Anyway that is what the label under the bonnet of my Honda Civic tills me. As for battery terminal connections positive to positive, negative to negative. Trevor :) |
Trev (427) | ||
| 510564 | 2006-12-29 06:55:00 | This this technique flawed? Every article online or book or instructions of the jumper leads says, Connect red lead to the +ve terminals of each vehicle. Connect one black lead to the -ve terminal of the booster battery. The other end of this cable should be connected to a good ground on the vehicle to be started, such as a bolt or bracket on the body. I got 2 books now and it says it. :confused: |
Nomad (952) | ||
| 510565 | 2006-12-29 07:18:00 | I have used jumper leads on many cars to start them and have always gone positive to positive and negative to negative. It is the same as you mention as negative is earth. And the answer to my first question is ?? Trevor :) |
Trev (427) | ||
| 510566 | 2006-12-29 07:43:00 | Every manual in the world will recommend the earth lead goes to an earth point ( an unpainted part of the car), Though I don't know if it makes any difference. (though I do make an effort to follow the recommended procedure) | Metla (12) | ||
| 510567 | 2006-12-29 07:51:00 | Part of the reason for putting the last connection on a good earthing point is to lesson risk of explosion. Batteries can produce flammable gas, when the last connection to the earth terminal is made, and quite often something is left on in the car, then the sparking produced can cause explosion. | sam m (517) | ||
| 510568 | 2006-12-29 08:02:00 | hmmmmm, Is that all?, what a let down. Been shorting out battiries for years (spanner across the terminals) to see which are "live" and haven't had one explode yet, and rubbing the jumper leads together was always good for a tickle. | Metla (12) | ||
| 510569 | 2006-12-29 08:16:00 | I have done the same thing - was mechanic for many years and funnily enough the only times I would earth to the motor was only when someone was watching. All other times I went straight to battery - I guess I just needed one to explode on me to really know it happens. Friend mechanic told me, he had been welding exhaust close to battery that was on charge (lids were off the cells so more likelihood of gas floating around) and the battery literally exploded - flew straight up hitting the roof. He shat himself - laughed about it later of course. Another reason (although the technical reason eludes me now) for earthing to the motor is to do with electronic ignition on the slave vehicle when it starts up. Causes some sort of surge which can fry something - I have been off the tools for a while so dont know if this is still the case with modern vehicles. |
sam m (517) | ||
| 510570 | 2006-12-29 08:53:00 | Sam, why is it that when the -ve was plugged on the dead car's body it didn't jump, but when a -ve to -ve it jumped? The drive belt was off if that makes any difference. Both cars were not fuel injected. |
Nomad (952) | ||
| 510571 | 2006-12-29 09:18:00 | Sam, why is it that when the -ve was plugged on the dead car's body it didn't jump, but when a -ve to -ve it jumped? The drive belt was off if that makes any difference . Both cars were not fuel injected . Jumped? Do you mean you could successfully start the car? When you say you plugged the -ve to the car's body I am guessing that the part of the body you plugged to was not earthed properly or there is was extra resistance, eg paint . The body is usually earthed by another earth strap from the engine to the chassis . The best place to connect to is actually not the body but the engine block . I usually plug the -ve to a lifting hook on the engine or a large bolt like a head stud or even the alternator bracket (care needs to be taken to ensure jumper cables away from any moving parts like pulleys and fans etc) |
sam m (517) | ||
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