Ensure that the appliance is cool and free from any debris that may interfere with the drilling. It is crucial to use a high-quality drill bit made of a suitable material, such as cobalt or carbide, to ensure precise drilling and a clean cut.īefore starting the drilling process, it is essential to turn off the gas supply and disconnect any electrical connections. To achieve the desired enlargement, use a drill bit of the corresponding size. The drill bit size depends on the difference between the desired orifice size and the current orifice size. Once you have determined the desired orifice size, it is time to select the appropriate drill bit. It is advisable to consult the appliance manufacturer or a qualified technician to ensure accuracy in determining the appropriate orifice size. This calculation requires considering the burner's input rating, gas pressure, and other factors. Once you have determined the existing orifice size, you can calculate the desired orifice size based on your specific requirements. Alternatively, you can measure the orifice diameter directly using a precision caliper. This information is typically provided by the manufacturer, either directly on the appliance or in the accompanying documentation. To determine the size of the drill bit needed to enlarge the NG orifice, you must first establish the current orifice size. Deviating from the recommended orifice size can result in incomplete combustion, soot formation, and other safety hazards. However, it is essential to ensure that the orifice size aligns with the burner's specifications and the gas pressure available. Enlarging the orifice can increase the flow rate, leading to a higher flame and more heat output. The NG orifice's primary purpose is to regulate the flow of natural gas into the burner. This article will guide you on what size drill bit should be used to enlarge an NG orifice effectively and safely. The NG orifice is a small opening through which the gas flows into a burner, and enlarging it requires careful consideration. When it comes to enlarging an NG (natural gas) orifice, it is crucial to use the right drill bit size. What size drill bit should be used to enlarge an NG orifice? Are there any guidelines or recommendations from manufacturers regarding the correct drill bit size to use on NG orifices?.Are there different drill bit sizes that should be used for different NG orifices?.What are the potential consequences of using an incorrect size drill bit on an NG orifice?.How do I determine the correct drill bit size to use on an NG orifice?.What size drill bit should be used to enlarge an NG orifice?.Maybe count that as a blessing and do so. You're lucky in that you actually can find the actual parts to do it CORRECTLY. If I was standing right there doing it with you, I know what to look for if it hasn't gone right and I know how to remedy. Or you can simply do it right the first time and take the safer more effective road. It's YOUR grill, it's YOUR safety (not mine or anyone else's here), and if you feel you'd rather risk your grill and safety to save a couple $$$. Not everyone is lucky enough to have a fully licensed fitter train them in all this either as I did after my first failed attempt. I DO know however that the the principals of gas technology don't change nor does the principal of safety. So you can "cheap out", take a chance you have a manifold with valves that will work and IDK you may have a 50/50 chance? I don't know enough about the newer generation of Weber grills to know what to tell you to look for. Because the sudden rush of O2 and change in air movement may cause the gas buildup to ignite suddenly. Gas is slowly building up under the hood and you go to check your creation and "whoompf" you have a fireball in your face. It is! Now you may have all 3 burners on, one or 2 may be struggling or not lit at all. Because IF you have that result, and are unknowingly using it like that, just because the flame may be out on a burner or two does NOT mean gas is not flowing. This is where an amateur conversion can go VERY sideways. Or you might have one after that "attempt" in which your low/medium flame settings are not consistent enough to "hold" a flame without a "flameout". So sadly you MIGHT have one where by a simple orifice change out, proper supply is given and voila you have a safe and useful grill that works. Weber (unlike other makers) seems to be all over the map when it comes to their manifold assemblies. But, pretty much it's what you will get from most any of us. I know given that you dropped off that PM you started what you got from me information wise was not what you wanted.