.003/.005 means it is a go and no go setting. It means that a .003 will go but a .005 will not. In other words .004. The same goes for .005/,007 - meaning .006.Hello I have a Briggs Stratton 18.5 hp ohv so I looked up the Valve Clearance it’s .003/.005 intake and .005/.007 exhaust Not sure about the numbers for example intake is .003/.005 what one am I supposed to use the .003 or the .005 Simple enough to do I’m just not sure about what one to use Thanks for any info you can give me
It means anything in the .003 to .005 range is acceptable. .0050 is acceptable. Anything greater than .00500001 is not. It does not matter if it is presented with upper and lower limits or with a bilateral tolerance. i.e. .004 +/- .001. Using feeler gauge is a skill. You have to develop a feel. Some may get the .005 gauge to pass. while another will say it does not go. Feeler gauge is a no-go type of measurement. No -go measurement tools tell you a range in which the feature in question falls. It does not give the actual dimension..003/.005 means it is a go and no go setting. It means that a .003 will go but a .005 will not. In other words .004. The same goes for .005/,007 - meaning .006.