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Re: How dangerous are very rusted rear calipers? Posted by Ari [Email] ![]() ![]() In Reply to: Re: How dangerous are very rusted rear calipers?, Victor, Mon, 18 Apr 2005 08:29:14 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I hate to admit it, but I've driven cars with the rear shield rusted away. As long as the brakes work.
As to the battery charging, I don't think you hurt anything. Starting a car requires LOTS of current - a few hundred amps is pretty common. 10 amps might be enough to start a lawnmower. Assuming the battery is flat (no charge), when you went to crank, you pulled much more current than the charger could provide. The needle on the charger will peg, but the output voltage from the charger will be very low - probably only a few volts. Not enough to turn the starter. The buzz you heard were relays trying desperately trying to pull in and failing to do so. It's the same noise you'd hear if your battery was almost dead.
Battery chargers with start capability are pretty big - like the kind you see at garages and auto shops. The solution is to be patient and let the battery charge for a half-hour or so.
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