Description

Hey there, hope this finds you well. I couldn't find a model that fits, and what better way to learn how to design threads :) I modeled after my 2024 Acura RDX that has a 4 cylinder 2.0L engine. The tread pitch is 3.0 mm/ thread. the Bore(valley) of the threads is 30.0mmOD. Print the funnel with the large end down, print the holder with the opening facing up. Use the holder to hold the o-ring in place while the glue dries. Use CA glue in the o-ring grove. O-ring is 1/8" cross section, sized as a 221 R27, but my cheap o-ring kit is off a bit and the 220 R26 works best. I printed with 8 layers for everything, so its pretty much solid. I prefer PETG but you use what you want, but use a plastic that is durable and not to break off inside your engine! As with all of my prints, please use at your own risk.