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Vacuum hose sizes
I was looking to lay in a supply of vacuum hose in the various sizes used on my '03 Avalon. I was planning to get some metric silicone hose, and wanted to be reasonably accurate on quantities, so I went out and measured the various fittings that were in easy reach under the hood. I measured the fittings, rather than the hose, figuring the plastic or metal fitting would not be stretched, either by 7 years in use or by my micrometer.
I found the following sizes, in millimeters:
4.06
4.47
5.08
6.22
6.40
8.00
Now, the first, third and last seem like nice, snug fits for 4, 5, and 8 mm tubes, respectively. Does anyone have any experience/knowledge to indicate that the other three are reasonable stretches for the next smaller whole number tube?
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