The Ford Barn

john charlton · 09-09-2015, 03:41 PM

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 .

RUNNERBUN · 09-09-2015, 04:03 PM

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

VFRhugh · 09-09-2015, 04:04 PM

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"

CarlG · 09-09-2015, 04:15 PM

.013 inches = .33 mm

That's how mine are set

john charlton · 09-09-2015, 04:27 PM

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 .

Tom Wesenberg · 09-09-2015, 07:04 PM

Sponsored Links (Register now to hide all advertisements)

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.

Big hammer · 09-09-2015, 07:15 PM

Honda uses .6 so you have to buy their hardware ? :-(

Benson · 09-09-2015, 07:24 PM

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.

RonC · 09-10-2015, 05:00 AM

I would just buy an imperial one.

C26Pinelake · 09-10-2015, 05:18 AM

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

09-09-2015, 03:41 PM	#1
john charlton Senior Member Join Date: May 2010 Posts: 1,304	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 .

09-09-2015, 04:03 PM	#2
RUNNERBUN Senior Member Join Date: Nov 2011 Location: Queensland Australia Posts: 640	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 __________________ Adjust your points with gentle blows of a 2 pound hammer

09-09-2015, 04:04 PM	#3
VFRhugh Senior Member Join Date: Apr 2015 Location: Texas Posts: 177	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"

09-09-2015, 04:15 PM	#4
CarlG Senior Member Join Date: Nov 2010 Location: Anchorage, Alaska Posts: 9,115	Re: feeler guage question .013 inches = .33 mm That's how mine are set __________________ Alaskan A's Antique Auto Mushers of Alaska Model A Ford Club of America Model A Restorers Club Antique Automobile Club of America Mullins Owner's Club

09-09-2015, 04:27 PM	#5
john charlton Senior Member Join Date: May 2010 Posts: 1,304	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 .

09-09-2015, 07:04 PM	#6
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: feeler guage question Sponsored Links (Register now to hide all advertisements) 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.

09-09-2015, 07:15 PM	#7
Big hammer Senior Member Join Date: Jun 2014 Location: Land of Lincoln Posts: 3,127	Re: feeler guage question Honda uses .6 so you have to buy their hardware ? :-(

09-09-2015, 07:24 PM	#8
Benson Senior Member Join Date: May 2010 Posts: 2,594	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.

09-10-2015, 05:00 AM	#9
RonC Senior Member Join Date: May 2010 Location: Rhode Island Posts: 1,868	Re: feeler guage question I would just buy an imperial one.

09-10-2015, 05:18 AM	#10
C26Pinelake BANNED Join Date: May 2010 Location: Michigan / Ontario border, Sarnia, Ontario. 50 miles from Detroit and 150 from Toronto. Posts: 5,800	Re: feeler guage question They are very, very cheap so why not buy another and avoid the confusion! Wayne