Hoses

[Guest]

Am going to the autoparts store to look for some hose for my project. I believe the vacuum hose is 4.5mm, the fuel hose is 7mm and the crankcase breather hose is 12mm (not real sure on this). In any case, I doubt the autoparts store will carry small diameter metric although they may carry small diameter inch size. What size hose do you folks use for these applications?

[JJ]

Take the metric diameter, and multiply by .03937 to get the SAE size.

Example for 7mm tubing: 7 X .03937 = .27559, which is close to 9/32" (.28125")

4.5mm = .177165", which is ~5/32" (.15625")

12mm = .47244", which is ~15/32" (.46875")

You should be able to find metric tubing locally, especially from auto dealerships or motorcycle shops. If not, it's easily found online.