Brake hard lines......... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mr.wilson · 10-01-2012, 09:01 AM

My 72 has been sitting for the last 6-7 years through mostly Texas summers/winters but the last winter up here in PA. Wondering if there is a NEED to replace the brake hard lines. No signs that they ever leaked, and they were fine before I decommissioned it. I will be replacing the hoses and rebuilding all the brakes before putting it back on the road.

dhaymaker · 10-01-2012, 09:22 AM

Given the description you've provided, and since you had no indications of leaking or significant damage, I don't believe it would be necessary to replace the hard lines. You will be eliminating one of the normal trouble spots, since you plan to replace the hoses in conjunction with rebuilding the brakes. Along with the rebuild, I assume you are planning to flush the entire system and replace the existing brake fluid. This will help remove any remaining contaminants from the system. Good luck! don

cdowns · 10-01-2012, 09:56 AM

i'd wait till you disconnect the flexlines then take a piece of wire and snake it into the hard lins and wiggle it around // then carefully pull it out if it is clean dont worry but if it is coated with gunky cxrap i'd replace the hard lines

mr.wilson · 10-01-2012, 10:00 AM

Cool, thanks guys!

GRX · 10-01-2012, 12:53 PM

Agree with what was said above. Definitely flush the system. The condition and appearance of the fluid will be your indication of what is going on.

mr.wilson · 10-01-2012, 01:43 PM

Quote:

Originally Posted by GRX

Agree with what was said above. Definitely flush the system. The condition and appearance of the fluid will be your indication of what is going on.

Anything special to use or just brake fluid?

GRX · 10-01-2012, 02:07 PM

Quote:

Originally Posted by mr.wilson

Anything special to use or just brake fluid?

I just use brake fluid. A cloudy appearance may indicate water contamination which can cause your steel lines to corrode from within. Start by inspecting the fluid in reservoir before flushing. The cap seal often leaks first.

10-01-2012, 09:01 AM	#1
mr.wilson Registered User Join Date: Apr 2005 Location: Allen,TX Posts: 115	Brake hard lines......... My 72 has been sitting for the last 6-7 years through mostly Texas summers/winters but the last winter up here in PA. Wondering if there is a NEED to replace the brake hard lines. No signs that they ever leaked, and they were fine before I decommissioned it. I will be replacing the hoses and rebuilding all the brakes before putting it back on the road. __________________ Wilson 1972 Cheyenne LWB, 350ci TH-350. Restoration in progress.

10-01-2012, 09:22 AM	#2
dhaymaker Registered User Join Date: Jan 2006 Location: Peyton, CO Posts: 448	Re: Brake hard lines......... Given the description you've provided, and since you had no indications of leaking or significant damage, I don't believe it would be necessary to replace the hard lines. You will be eliminating one of the normal trouble spots, since you plan to replace the hoses in conjunction with rebuilding the brakes. Along with the rebuild, I assume you are planning to flush the entire system and replace the existing brake fluid. This will help remove any remaining contaminants from the system. Good luck! don __________________ don "The DRBMan" 2014 Audi A4 (The Wife's Daily Driver) 2017 HD Ultra (The Cruiser) 2003 HD Fatboy (The Ride) 2001 Chevy Suburban (Another back up!!) For the first time in forever, not a single 67-72 Chevy truck, Blazer, or Suburban on the property! Basically retired and getting the new Motorhome ready for some traveling. Doing a bit of work on the house getting it ready to sell! LOL!!

10-01-2012, 09:56 AM	#3
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Brake hard lines......... i'd wait till you disconnect the flexlines then take a piece of wire and snake it into the hard lins and wiggle it around // then carefully pull it out if it is clean dont worry but if it is coated with gunky cxrap i'd replace the hard lines __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

10-01-2012, 10:00 AM	#4
mr.wilson Registered User Join Date: Apr 2005 Location: Allen,TX Posts: 115	Re: Brake hard lines......... Cool, thanks guys! __________________ Wilson 1972 Cheyenne LWB, 350ci TH-350. Restoration in progress.

10-01-2012, 12:53 PM	#5
GRX Registered User Join Date: Jul 2010 Location: MD Posts: 1,937	Re: Brake hard lines......... Agree with what was said above. Definitely flush the system. The condition and appearance of the fluid will be your indication of what is going on. __________________ 1969 c-10 Step Side Long Bed. I-6 250cid = = 1969 Pontiac GTO hard top. 400, 4-speed.



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