Best process to purge out brake fluid at home
#371592
07/10/09 08:29 AM
07/10/09 08:29 AM
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Joined: Aug 2003
Posts: 8,828
Houston, Tx
hemi68charger
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OP
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Joined: Aug 2003
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Houston, Tx
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Hey gang..
What's a good method of purging out the old brake fluid in the system to replace with DOT5. I'd like to be able to do this at home in the garage.
Thanks.
Troy
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: Best process to purge out brake fluid at home
[Re: cptn60]
#371595
07/10/09 08:58 AM
07/10/09 08:58 AM
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Houston, Tx
hemi68charger
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Quote:
Troy, if you are going silicone you will want to flush the system. I use alcohol myself as an agent. Not certain, but I have read the two types are incompatible. Hope this helps 
Thanks George,
What I'm looking for is something with the best heat resistance. The engine compartment of my Daytona gets pretty hot. I'm going to ceramic coat the outside of my exhaust manifolds for addition help.
Quote:
I just recently flushed all the fluid out of my brakes also. I used a long clear plastic tubing and sucked out the old out of the MC. Then took a lint free paper towel and cleaned out the inside of the MC. Then hooked up my pressure bleeder and pushed all the old fluid out. This is a good/best method to do this. Takes only minutes for each wheel and I can be sure it's totally purged.
But I know that not everybody has a pressure bleeder , so I would think gravity bleeding would work here. Checkout his thread from earlier this week. Hope this helps. 
web page
Thanks Gary.. I'll read up on it. Maybe if I can find the bleeder cap, then I'll be in business.
Troy
Last edited by hemi68charger; 07/10/09 09:00 AM.
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: Best process to purge out brake fluid at home
[Re: hemi68charger]
#371596
07/10/09 11:23 AM
07/10/09 11:23 AM
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Joined: Dec 2007
Posts: 18,166
Mass
DAYCLONA
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IMHO Troy, I'd forego the Silicone Dot5,....I think your gonna have problem with seal swell/deteriation,.......I'd recommend the ATE Blue Racing Brake Fluid, that I mentioned to you earlier, I use it in the brake and Keisler Hyd resv system on my Daytona,....I run stock HP manifolds and the inboard "wingcar" master cylinder also, on a bendix booster, so you know it's lines are about 1-1 1/2" away from the manifolds upsweep,.....I would boil the brake fluid too,........only thing that worked for me was the ATE Blue,(dot4 boil point is 550-575 degrees)......some parts stores carry it, like CarQuest,.....standard at all Porsche dealerships/parts dept,.......$40 Quart, if you go this route, still flush/purge the system of the old crap 
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Re: Best process to purge out brake fluid at home
[Re: Menzaero]
#371598
07/10/09 12:35 PM
07/10/09 12:35 PM
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Joined: Aug 2003
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Houston, Tx
hemi68charger
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Roger and Mike.
Is the ATE Blue Dot 4 Brake Fluid comparable to the DOT 5.1 which is a Polyalkylene Glycol based fluid. The 5.1 is compatible with DOT 3/4 hence one doesn't have to worry about getting some of the old fluid with the new stuff. Silicon DOT 5 can reek havoc when mixed, even in the smallest of amounts.
As I research, what's the advantage of ATE Blue Dot 4 over Dot 5.1
EDIT: Just read that ATE Blue Dot 4 is a fancy name for the DOT 5.1. Basically a 4 on steroids (higher dry boiling point).
Last edited by hemi68charger; 07/10/09 12:44 PM.
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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Re: Best process to purge out brake fluid at home
[Re: brake tech 73]
#371600
07/10/09 01:00 PM
07/10/09 01:00 PM
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Joined: Aug 2003
Posts: 8,828
Houston, Tx
hemi68charger
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Quote:
Troy, you really don't want to use the silcone fluid. The Wilwood EXP 600 is also an excellant choice of dot 4 brake fluid. It has been tested to 626 degrees ,and the wet boiling point is 417 degrees. :
Yeap, I agree that the DOT 5.0 is out... The Wilwood looks like a good choice and not overly expensive. I'll gravity flush my system, replenish with the 600 or equivalent, ceramic coat the exterior of my exhaust manifolds with a medium gray and get back into business. Would love to do the interior, but no one here in Houston has the capacity to work/coat the inside of my cast manifolds.
Troy
Last edited by hemi68charger; 07/10/09 01:23 PM.
TroyHouston Mopar Connection Club'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi) '69 Charger 500 440 - 4speed - 3.54 Dana '70 Road Runner 383 - 4speed - a/c (now with 440)
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