who ever changes brake fluid
Lead Driver
Joined: Dec 2002
Posts: 5,491
Likes: 16
From: Kuna ID
I get my fluid changed every 2 years, I have heard you should do it every 2 years or 24k miles, I also heard it should be done every year. I just take it in to a shop, it only costs me $30 and 20 minutes to do. I usually have the rear brakes adjusted as well.
Hotshot
Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
Any time I have to open the system. If I replace a line or wheel cylinder, the whole brake system gets flushed and refilled. Basically, if you look in the master cylinder and the brake fluid is not a yellowy clear color, replace it. Siphon the stuff out of the master cyl and wipe it out with a clean rag before you flush the system. The black gunk is rubber particles, and will cause seals to fail if you flush it through the system. After that, if you want to be real thorough, run alcohol through the sytem, then fresh brake fluid.
Thread Starter
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Posting Guru
Joined: Feb 2003
Posts: 1,226
Likes: 0
what does the alcohol do for the system. is there alcohol specially for brake system flushes? I was also wondering if anyone has installed those brake bleeding valves, with the spring and ball bearing in them(hope I'm discribing them right) if so what do you think of them?
Cargo Master
Joined: Dec 2004
Posts: 2,232
Likes: 3
From: NE Texas
No you don't use any flushing agent. The fluid itself serves to flush the system.
I flush brakes and hydraulic clutches every one to two years. The alcohol in brake fluid is hygroscopic, meaning that it absorbs moisture. The moisture then corrodes the brake system.
I have been doing this for about 25 years and have yet to lose any brake hydraulic components. This includes an '84 Mercedes 240D with 533,000 miles that still has ALL original hydraulic components including brake and clutch master cylinders, clutch slave cylinders and all four calipers. I have replaced the rubber lines is all.
As said earlier in the thread, watch the color and when it is no longer light honey color, change it.
Good luck,
Doc
I flush brakes and hydraulic clutches every one to two years. The alcohol in brake fluid is hygroscopic, meaning that it absorbs moisture. The moisture then corrodes the brake system.
I have been doing this for about 25 years and have yet to lose any brake hydraulic components. This includes an '84 Mercedes 240D with 533,000 miles that still has ALL original hydraulic components including brake and clutch master cylinders, clutch slave cylinders and all four calipers. I have replaced the rubber lines is all.
As said earlier in the thread, watch the color and when it is no longer light honey color, change it.
Good luck,
Doc
Thread Starter
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Posting Guru
Joined: Feb 2003
Posts: 1,226
Likes: 0
I didn't realize that you change the fluid that often, guess I better brush up on my regular maintanence. Has anyone installed those self brake bleeder valves on the wheel cylinders? would like to know how well they work
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Cargo Master
Joined: Dec 2004
Posts: 2,232
Likes: 3
From: NE Texas
I have never used the speedbleeders, but I expect that they work great.
When folks use the word flush, they mean continuing to add brake fluid and bleed it out until you have clean fluid coming out. There is no such thing as flushing with a cleaning agent of some sort.
Have a great day,
Doc
When folks use the word flush, they mean continuing to add brake fluid and bleed it out until you have clean fluid coming out. There is no such thing as flushing with a cleaning agent of some sort.
Have a great day,
Doc
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Mountain Pass
Joined: Dec 2001
Posts: 213
Likes: 0
From: Kernersville, NC
The speed bleeders work okay in a pinch, but when the coating on the threads starts to wear out (it's like loctite or something) then they start to draw air in when you release the pedal. You're better off with a pressure bleeder or a good buddy to pump the brake.
Bryan
Bryan