Fuel Lines Sizes for 1997 Honda Civic

[JC1]

I was under the 97 Civic yesterday removing that plastic cage that "protects" and causes rust on the two brake lines and three fuel lines.

I have no leaks currently, but I looks like I should do some preventative maintenance and splice in some new Lines.

I know the brake lines are 3/16" and the male fittings are 10x1.0 metric fittings.

Does anyone here know the sizes of the fuel lines? One is much larger than the others. I was reading on some Honda forums and here is what they posted.

Pressurized one is 3/8, Vent and return are 5/16.

What size are the male fittings and couplings for the fuel lines?

 

[eljefino]

Very plausible. Why not slide a 3/8" and 5/16" open end wrench over the suspect lines to see if they fit snugly?

 

[JC1]

Originally Posted By: eljefino
Very plausible. Why not slide a 3/8" and 5/16" open end wrench over the suspect lines to see if they fit snugly?


Thanks for the idea. I'll give it a look on the weekend.