In the early 80's I did the first oil change on my mothers new Nova. The filter was on like it was welded too.
Every possible wrench type was used, until the filter canister finally collapsed.
Then, the screwdriver through the canister technique was applied, which went no where fast.
After removing the entire canister, only the mounting flange left. I also attempted to use a pipe wrench on the flange, but there was not enough there to grip.
I finally used an air chisel too, with a blunt bit in, it to "unscrew" the flange. That was a slow process, because I had to use care not to to damage the pump.
I still cringe when I have to do a first oil change.
You would think even a trained animal could properly do a simple task like this in the factory. But, factory labor, is often unskilled labor. And, these are no doubt tightened with some sort of mechanical device. So, if the person doing it is ignorant to how tight it should actually be, guess what can happen?
I saw many other examples of this kind of thing, in over 40 years of servicing vehicles.
The worst example of this I dealt with was on a zero turn mower, where I spent the better part of 2 days cussing, and running around to get different tools, while trying to take a brake drum off.
It was attached to a tapered spindle, with a single nut. Should have been a simple task. :laughing:
After no luck trying to remove the nut with a 1/2", and then a 3/4" impact, a 1" impact was brought in, which still labored to remove the nut. This left the brake drum pressed on the tapered spindle so tight, it resisted tons of heat, and multiple attempts with different types of pullers using a 6' long bar to turn it, as well as hours of banging on it with a large slide hammer, before finally relenting.
