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Steel brake line fitting and flare type

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6.7K views 3 replies 3 participants last post by  AndyFromWI  
#1 ·
Hello everyone!

I have an '02 RSX Type S with a hole in a brake line. The line is from the ABS modulator-control unit to proportioning control valve (#13 in the attached diagram). The part (46379-S6M-A02 Brake Pipe Z) seems to be discontinued, so I will be using coiled brake line tubing (3/16"). Does anyone know what the sizes are for the fittings on either end (ABS modulator control unit and the proportioning control valve), and also the type of flare? (will be using loaner tools from Autozone if they have them available, but Harbor Freight and Amazon are also options).

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#2 ·
OK completed the install, here's some info on what to use (in case others are having the same issue). Used 3/16" coiled steel brake line (purchased from Autozone (I'm in IL), probably should have used NiCu line if it is softer). The fittings used are 10 x 1MM with the unthreaded lead on the end before the threads (see photo). The flare used is the ISO Bubble Flare (NOT the SAE bubble flare, there is a difference). Was going to use the loaner kits from the parts stores, but none had the ISO bubble flare kit in stock. Purchased the Neiko 20657A ISO/Bubble Flaring Auto Tool Kit from Amazon (https://www.amazon.com/dp/B00170V64G?ref=ppx_yo2ov_dt_b_product_details&th=1). Used the 4.75mm hole and die on the tool (3/16" is actually 4.76mm, so it worked fine).

When installing, the torque spec is only about 11 ft. lbs, so no need to crank them extremely tight. Hope this info helps!

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#4 ·
OK completed the install, here's some info on what to use (in case others are having the same issue). Used 3/16" coiled steel brake line (purchased from Autozone (I'm in IL), probably should have used NiCu line if it is softer). The fittings used are 10 x 1MM with the unthreaded lead on the end before the threads (see photo). The flare used is the ISO Bubble Flare (NOT the SAE bubble flare, there is a difference). Was going to use the loaner kits from the parts stores, but none had the ISO bubble flare kit in stock. Purchased the Neiko 20657A ISO/Bubble Flaring Auto Tool Kit from Amazon (https://www.amazon.com/dp/B00170V64G?ref=ppx_yo2ov_dt_b_product_details&th=1). Used the 4.75mm hole and die on the tool (3/16" is actually 4.76mm, so it worked fine).

When installing, the torque spec is only about 11 ft. lbs, so no need to crank them extremely tight. Hope this info helps!

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Thank you! I'm about to do the same thing, your information is extremely helpful!
-andy