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Old 09-09-2015, 03:41 PM   #1
john charlton
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Default feeler guage question

Having completely lost my imperial feeler guage I have found a metric one . Cant find out on Google so can any kind soul tell me what the inlet and exhaust tappet clearances are in MM , Thanks .

John in was a lovely sunny day ( there has to be a catch somewhere ) Suffolk County England .
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Old 09-09-2015, 04:03 PM   #2
RUNNERBUN
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Default Re: feeler guage question

Hi John, there are plenty of on line converters. Google search "convert inches to mm" Just type in your desired gap in inches and the mm equivalent is displayed. Try this link.
http://www.google.com.au/url?sa=t&rc...ISbVnIIw9jjo7A
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Old 09-09-2015, 04:04 PM   #3
VFRhugh
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Default Re: feeler guage question

There are 25.4mm per inch. Multiply inches by this constant to come up with any mm. .015 x 25.4 = .381MM. Conversely there are 0.039370078740157" per MM so for example 039370078740157" x .4MM = 0.015748031496063"
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Old 09-09-2015, 04:15 PM   #4
CarlG
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Default Re: feeler guage question

.013 inches = .33 mm

That's how mine are set
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Old 09-09-2015, 04:27 PM   #5
john charlton
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Default Re: feeler guage question

Thank you all for your prompt reply . I will set to 35 mm as that is the best I can do as some of the leafs are missing .

John in same weather and same place .
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Old 09-09-2015, 07:04 PM   #6
Tom Wesenberg
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Default Re: feeler guage question

I needed to convert an odd size metric screw the other day (M3 x .6 x 8mm) so see if any American size was close. I did a Google search for "metric conversion chart" and came up with good listings, which included conversions for length, area, and volume.

BTW, the standard pitch for an M3 screw is .5, so I have no idea why Honda used .6 on my 1964 Honda E40 portable generator.
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Old 09-09-2015, 07:15 PM   #7
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Default Re: feeler guage question

Honda uses .6 so you have to buy their hardware ? :-(
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Old 09-09-2015, 07:24 PM   #8
Benson
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Default Re: feeler guage question

I ran into a similar problem when working on Yamaha DT-1 250 and RT-1 360 dirt bikes in early 70's and later, the XT-500 .

Japanese were using threads called "ISO" on only certain parts on the scooters.

Why ISO threads on some parts?

I never figured out any reason for it.
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Old 09-10-2015, 05:00 AM   #9
RonC
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Default Re: feeler guage question

I would just buy an imperial one.
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Old 09-10-2015, 05:18 AM   #10
C26Pinelake
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Default Re: feeler guage question

They are very, very cheap so why not buy another and avoid the confusion! Wayne
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