Yellow color of metal on rubber brake hoses; can the yellow be removed?

[Gary B.]

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[Joe L.]

Re: Yellow color of metal on rubber brake hoses; can the yellow be removed?

Does anyone know of a vendor that sells rubber brake hoses for 63-66 that don’t have the yellow hue to the metal ends? Attached is a photo of what Long Island sells. Is there an easy way to remove the yellow? I’ve had success soaking grade 8 nuts in vinegar to remove the yellow/gold hue. Maybe the same would work on the brake hose ends?

Gary

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Gary------


Vinegar should work for the hose ends. Make sure you plug the ends so that no vinegar gets into the inner part of the fittings and hose.

Keep in mind that these hoses are not 100% correct. The end fittings are not configured as-original in several ways. For one thing, they are double crimped. Originals were not double crimped. For another thing, the "c-clip" on the chassis end was not used on originals. Instead, originals had a flanged fitting.

In any event, exact originals are not reproduced because single crimped fittings are not DOT-approved. I think I saw somewhere that deductions are not taken for brake lines because they are a safety item.

[Gary B.]

[Joe L.]

Re: Yellow color of metal on rubber brake hoses; can the yellow be removed?

Joe,

Regarding judging of the brake hoses, the latest edition of the ‘66 judging guide says: “In the interest of safety, horizontal and/or multiple brake hose crimps are acceptable for Flight Judging”. But that doesn’t mean that other aspects of the hoses are ignored, like longitudinal ribs in the rubber, color stripe along the rubber, DOT marking, color of metal ends, etc., are ignored. So, my hope is that those features can be made closer to correct.

Why the caution about not getting vinegar inside the ends? Do you think it could damage the rubber?

Gary

Gary------


No, it will not damage the rubber. However, it will contaminate the brake fluid if any remains when the system is filled.

[Alan D.]

Re: Yellow color of metal on rubber brake hoses; can the yellow be removed?

Here is an original (64), note the yellow on the rubber line. Simple marker to tell if line is twisted, so remove white stuff and add a little yellow. So Joe point outs the non original stuff.

[Gary B.]

[James G.]

Re: Yellow color of metal on rubber brake hoses; can the yellow be removed?

Yellow dichromate is a passivation of ZINC. It can be removed using citric acid or as OP stated vinegar.
Just plug the hose ends.
I removed some recently using citric acid and finished up with a piece of 0000 steel wool.

[Gary B.]

Re: Yellow color of metal on rubber brake hoses; can the yellow be removed?

Thanks James. I will plug the ends somehow.

Gary

[Perry M.]

Re: Yellow color of metal on rubber brake hoses; can the yellow be removed?

I would think a foam ear plug would work well to plug the hose ends.

[James G.]

Re: Yellow color of metal on rubber brake hoses; can the yellow be removed?

IF you leave it in too long it will remove all of the zinc plating as well... so if the yellow is faint it will not take long.
Deeper goldish color will take longer. I didn't leave the plated end in the solution for more than 10 min.

[Ron G.]

Re: Yellow color of metal on rubber brake hoses; can the yellow be removed?

Gary,

I just restored my original brake hoses. I took them off the car in the mid seventies so all the markings, red stripe, and the hose itself was in perfect condition. I have a plater that re-plates the yellow zinc and the hose and any markings and colored stripes will remain and not be disturbed during the plating process. You can also yourself remove the existing plating or they can do it. What I do is tape up the hose near the plated ends and gently wire wheel the crimped ends till they are bare metal and then I brush some Rust Dissolver that I purchase from Eastwood. After that I just soak the hoses in simple green mixed with hot water. I save a couple of steps for my plater. I did this for my brake caliper hoses and my P/S control valve hoses, only the latter were plated clear zinc which is silver in color. If you want more info or pics, then reach out to me via email or my contact number. - Ron

[Gary B.]

[Ron G.]

[Gary B.]

Re: Yellow color of metal on rubber brake hoses; can the yellow be removed?




Gary

[Ron G.]