Positive battery lead rubbing on a brake pipe, then earths through pipe, melting brake pipe and wire?
I drove a seventies Datsun down a farmtrack track once and hit a bump that made the (rotten) inner wing lean towards the engine so much that the alternator fan wore a hole in the side of the battery spraying acid everywhere,they were the days!
The long bar that holds the bonnet up had the clip that holds it in place, broken. The other end (hinge end) was made of plastic or nylon, hence and insulator. This bar had move 90 degrees pointing to the bulkhead. At this point on the bulkhead was a 4 way junction of brake pipes. Yes, one part of the bar had touched the battery +ve and welded a hole on the brake junction. The resulting short cut the engine, cloud of smoke from the hot brake fluid, and no brakes!
While this has been a fun quiz, bit dangerous, and I thnk a design fault. Anyone else had anything like this?
Hia Steve, you were on the right track! See my answer on the previous Guess the fault. You experince with the datsun sounds unusual and dangerious!
Cheers
Rodders
Positive battery lead rubbing on a brake pipe, then earths through pipe, melting brake pipe and wire?
I drove a seventies Datsun down a farmtrack track once and hit a bump that made the (rotten) inner wing lean towards the engine so much that the alternator fan wore a hole in the side of the battery spraying acid everywhere,they were the days!
Yep. There are loads of faults that have the potential to be lethal on a car. That's why we have MOTs and servicing. Here's a few:
Leaking wheel cylinders - they tend to leak fairly regularly IME, and they can and do fail completely, quickly, and you lose brake fluid. Leaking clutch slave cylinders - fairly common on Kas, and probably Fiestas too as they share running gear. Again, means a loss of brake fluid. Wheel hub nuts being refitted without a split pin or the nut being notched with a hammer and chisel.
An example of a design fault would be that the brake lines were often chafed against something (say on full steering lock), or running straight past the exhaust manifold, ensuring the fluid was always roasting. A fault that occurs because somebody breaks something and doesn't repair it is down a) the bloke who broke it and b) the bloke who didn't fix it.
The bonnet stay locating clip was broken,stay moved to bulkhead touching 4 way junction for brake pipes,other end of bar touched battey+ve and welded a hole in the brake pipe,engine cut out,smoke from hot brake fluid and loss of brakes.. I claim my £10. :-) Steve
That was an abject lesson. Whatever the part the car was originally equipped with has a function to play, leaving that out without seriously thinking of its possible consequences is really leaping into the dark: there should be in place the car battery +ve terminal plastic 'boot'!
A 'design fault' will be replicated on many other samples of the product. A single instance of a fault could be caused by any number of things - damage and poor maintenance for example.
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