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Two simple questions that came up when mounting tires at home
On Fri, 17 May 2019 18:33:44 -0600, rbowman wrote:
> I realize that there are criteria that result in different designs but > the engineer in me is offended when the main criteria seems to being > slightly different from the other company's design. I have a collection > of oil filter cap wrenches, all of which are almost, but not quite, the > same. Even if the filter itself is for the same applications the > different manufacturers have to march to their own drummer. Hi rbowman, I agree with you that simply having a different size for no good reason than to make it incompatible with others, is a marketing sham. We should strive to not fall prey to those shams, where, I admit, I must have a dozen different oil filter wrenches myself, from the cap type to the strap type for my non-BMW vehicles (the bimmer has a different kind of oil filter setup). I just snapped this picture of my disassembled chucks, where you'll note two things of related import. <<https://i.postimg.cc/nVPJC1Sy/valve11.jpg>> One is that only the middle (brand new) chuck even _has_ a spring, which may be why I'm unhappy with the oldest chuck from the 1970s's when I bought the compressor to paint my old Japanese sports car. I have no idea where the spring went, where it's impossible that anyone else has ever had possession of the chuck - so - maybe - perhaps - decades ago - I may have taken it apart and somehow - perhaps - lost the spring? I can't see the spring leaving on its own. I could have sworn that I would have had the right sized spring in my box of things, but a look there found everything but the right sized springs. Since I take apart EVERYTHING that breaks, I am surprised I didn't save more of the springs - but alas - I'll have to buy some since I see now that the real problem with the chuck was that I didn't know how to repair it. (And I hate waste - where I feel too many people waste our earth's limited resources by throwing them out instead of fixing them.) Anyway, the second thing is that the fittings I have on hand are from a batch I bought from HF on sale perhaps a year or two ago, where the red label says that they're "Industrial 1/4 inch Brass NPT M" fittings by a company named "Kobalt" with a SKU of "8 79686 00455 4" A google search finds this: <https://partairtoolo.com/879686004554> I guess that means my fitting "type" is "Industrial", whatever that tells us. Pretty much, that means I need to _only_ get "Industrial" fittings when I need new ones, where the old ones don't ever wear out - but they seem to hide with the socks. |
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