hello all, I got a question about metrics. I'nm planning to rebuild my carter ball and ball 1 bbl. it's from my 1951 Chrysler Windsor 251cui 6 flathead. I already got the kit but when i look at some youtube vids of rebuilding the carb the guy talks in inch's and i'm not so good at that i'm affraid. for example, 3/8 inch is howmany mm, and he'ssaying something like 5/30sec? don't know if i'm writing it down right? can you help me out with that? Here are the youtube url's. http://youtu.be/pucNX4PQmmw http://youtu.be/kGCKYA8KIiw Thanks Danny
Here is a conversion chart from the internet. 5/32 is 5 divided by 32 or 0.15625 inches. http://www.hamuniverse.com/antfrac.html
Time to buy tools! Mechanics in North America have been dealing with this since the 80's. We have 2 tool boxes.
3/8 of an inch equals 9.525 mm. Use the search function on your computer. Search "inches to millimeters" and download one of the free converter programs.
You can get free calculators on line for the conversion of inch to MM or vice versa. But without the tools like oldolds said you'll be hard pressed to complete your task. Since a carb rebuild is a low torque exercise a less expensive (cheap!) set should work.
Save these two conversion charts and print them out. Throw 'em in your toolbox. Look at them everyday for a year. You'll memorize common conversions. I also have a smartphone app called "iConvert".
Wow! After all these years... It has finally come full circle! A metric guy having trouble with fractions of an inch. I really didnt care for the metric changeover push in the US years ago, although what pained me the most was the long drawn out conversion that never completely happened. Now I deal with Inch, British pipe and millimeters. Its second hand now... Thanks for the charts, Dr!
Full circle?? We in europe have dealt with fractions for ages! Thanx for the charts anyway guys. Will beat the hell outta using on line conversion sites and figuring how many decimals a fraction is LOL
The chart that Crystal Blue posted in post #7 should print out nicely so you can print a couple of copies to have in the shop to refer to.
Actually mechanics have been dealing with it as long as there have been import cars in the states. We didn't start dealing with it in our own market until we decided that we should be followers and not leaders. I have my Ol' Man's tool box a collection of tools that he started before the second war to end all wars [] some of the tools are actually mine that he captured along th way an eclectic collection of SAE, Metric and whit-worth (SP?) wrenches. The deal is that you have to know what you are wrenching and what it takes to get the job done. But the conversion from inches to MM is an inch equals 25.4 MM. So any fraction converted to decimal by dividing the numerator by the denominator (numerator is the top number and denominator is the bottom number) then mulitplying by 25.4. To convert in the other direction you take the umber of MM and divide by 25.4 Inches = MM/MM:Inch MM = Inches x MM : Inch MM:Inch = 25.4
Kind of silly but someone decided it be great to divide inches into equal sections of 64 . Normal math and reducing of fractions will get you 32/64 is actually 16/32 - 8/16-4/8-2/4 ultimately its a 1/2 and so on. For higher precision work they divide an inch into 1000 equal sections. Where 1/2" is written as 0.500" and verbalized as "five hundred thousandths". This thing > " < significant as its stating you are dealing with inches Somewhere along the line, someone decided that they would label drills with ****ing letters too. I need a chart
31Vic, I actually have worked as a machinist on and off for a good portion of my adult life and I still have to go to my mechanical handbook when I come across letter drill sizes.
In Canada we buy our plywood in metric thicknesses example: 19mm (about 3/4" ) in a 4'x8' sheet ...a 2x4 length is still in feet. And we are supposed to be using the metric system...go figure
Wow Haven't had a topic that had so many replies in such a few time. Thank you al guys won't forget it anymore... Danny
I worked R&D for a company that was bought out by a Canadian company. They convered all out prints to metric, then we had to work without the benifit of metric tooling in our *American plant, so everything had to be converted back to inches. You talk about impossible to get anything accurate at all. Converted and then converted again, then gaining or loosing in the process in either direction. *read American as USA this is not to say that Canadians are not Americans, we all live on the same continent.
All confusing mixing stuff - especially for rookie who hasn't fingered out the nominal lumber dimensions " I'd like a 19mm 1x6x3 meters please" or really mess with them and start talking about 3/4" lumber is actually 0.75 but 5/4 lumber is really only an inch. Freaking miracle anybody understands the ****.
This is why they had so much fun with the Hubble telescope-part done in English, part done in metrics. Then to save money, they decided not to test ***emble it before blasting it off into space. Cute. As for wrenches-Cresecent wrench and a hammer- c'mon this is a traditional site, right? FWIW, as a vet, some of my drug doses are in milligrams per pound, some in milligrams per kilogram, then onuces/pound or milliliters per kilogram. Neat. At least we all agree that there are still 24 hours in a day. So far.
5 window I actually have a metric Crescent wrench. I told the Ol' man that I had a neighbor that owned a Honda and he was always wanting to borrow my tools to work on his bike, I told him I wished I had a metric Crescent wrench to loan him and he showed up the next day with one. Here is one for you. I worked on a mega highway design project in '08-'09. it was divided into sections with different offices of the company that I was subbing with. One section of the highway was in Seattle and they work entirely in metric so there is a section of the highway that all the prints are metric.
The solution is too simple and you dont have to go any farther than your tool box You just buy a inexpensive set of digital calipers because they always come with a MM/IN ****on. Measure in inches, push the ****on , instant MM. Measure in MM, press the ****on, instant Inches all the way up to 6" (152.40mm). And no pencils were damaged during this exersise
I'v been wondering if you buy a metric socket set in a country that uses the metric system is it still a 3/8" or 1/2" drive? Also you don't see many metric drill bits for sale either. JJ
Actually, the basis is dividing by 2, rather than reducing fractions from 64. We are saying the same thing really. So one inch divided by 2 the first time is 1/2. Divide by 2 again is 1/4. Repeat and you get 1/8, 1/16, 1/32 and finally 1/64. Although you could take this further to be 1/128, 1/256 the 1/64 is about as small of an increment used. Beyond 1/64 it transfers to .001 (thousandth of an inch) increments as you pointed out. For the original question. 1 inch = 25.4 mm and 1 mm = .0395 inch are your conversions
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