I bought a 90917 fuel line check valve a while back to see if it helps with some in cabin fumes I'm trying to rack down. All lines are newer, so trying to find the source of the smell and thought I'd knock this out. But, the existing check valve I have in place has larger barbs and it fits the current fuel line tubing fine. If you see from the video below, the new OEM check valve I bought has smaller barbs and doesn't seat in the hose at all. So, I assume I need to replace the two fuel line pieces below and above the check valve with a smaller ID hose. Am I correct or am I doing something wrong? Any suggests on the correct fuel hose to buy?
What size (ID) fuel line for vapor recovery hose? '74 FJ40 (1 Viewer)
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