I'd imagine they were there to drain any water spilled while topping off the cells (car batteries in 1967 had to be periodically "topped off" with distilled water, unlike modern "sealed" batteries). Incidentally, early 911's & 912's are very susceptible to trunk corrosion especially if the rubber drains are plugged.
My husband said it is caused by the vapor from the battery acid. It is the vapor of the battery acid leaking out of the battery, so the above answer is correct.
Leaking from where on the battery, the caps? If so the charging system may be over charging the battery and causing the acid to boil out. Could be a voltage regulator problem.
No, it is battery acid corrosion caused by leaking fumes. Clean it off with water and baking soda which will neutralize the acid.
An auto battery could be leaking for a couple of reasons. The alternator could be overcharging the battery causing the leakage. Or the battery itself could have a short or other internal problem causing it to leak when charging.
Yuor battery is leaking fluids or gases. The battery likely needs replaced.
The alternator may be putting out some amps, but the regulator inside is failed. The alternator is the first thing to replace when the battery lamp comes on in these vehicles. Also make sure the battery is not leaking acid. Remove the positive and negative cables from the battery and look for corrosion. If corrision is found, you'll need to replace the battery and also take the battery cable covers off to clean the contact pads down to bare metal. Make sure all corrosion is removed. Russtech67
It can explode.
The battery acid is leaking out, either do to a failing battery or do to an alternator that is over charging.
There is acid on the inside and it has burnt through the metal that is keeping it inside. The reason the acid might be leaking out is because the battery has a leak.
Transmissions have lines that run from the transmission to the oil cooler in front ot the engine. Most of the time, it's made into the radiator. These metal lines sometimes rub against the metal chasis, causing a hole. It may also be corroded from a leaking battery case. Remove the battery and find the leak. It can be repaired easily with a rubber hose made for transmissions and clamps.
If a battery is leaking, then it needs to be thrown away. The acid leaked can be very dangerous.
Yes ,if battery is leaking