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#747762 05/17/2011 4:51 PM
Joined: Aug 2010
Posts: 368
J
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Members:
Just replaced all my brake componets and about to replace all the brake lines...my question is...Now that the entire system is dry( Except Master Cylinder )...how do I fill the brake lines and wheel cylinders?

Will the lines fill all the way to the wheels by just adding brake fluid? Then bleed?
Any help would be great,Also,should I drain the Master so that all fluid is clean and new. What type of Brake fluid should I use and about how much for a new and dry system. All Stock Drums.
Thanks


1954 Chevy 3100 5-Window
In the Stovebolt Gallery
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"True victory is victory over one's self."
Krav Maga isn't pretty ... but it works just fine.


Jimmi V.
Jimmi_V #747764 05/17/2011 4:56 PM
Joined: Apr 2005
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Fill the master cylinder full, leave the cap off. Open one of the bleeders on a caliper (the furthest away from the master), and go have a cup of coffee. Come back and see if it is dripping out of th eopen wheel cylinder. If it is, close it and move on to the next wheel cylinder. Keep checking that the master does not go dry. Once all wheel cylinders have been wet, go around and do it again, but watch as you do it. After that, do a regular bleed with someone on the brakes. It will pump up in no time.

Builder #747807 05/17/2011 9:04 PM
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Riding in the Passing Lane
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If you have done all that I would surely put a kit in the master cyl. Builders method wont work with the master cyl. under the floor.Gravity bleeding works great on firewall mounted master cyl. If you are not going to service the MC remove the fluid from the reservoir & fill with DOT3 or 4 fluid. If the master cyl didn't go dry you can go ahead & bleed the brakes in the normal manner. If you worked on it bench bleed it before you put it on & then bleed the system.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
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i just did mine everything new including a dual resevoir m/c on the frame, combination valve,residuals,and a pressure brake line switch, all new lines and hoses ,wheel cyclinders,calipers,cut ,bent and flared where needed....bench bleed the master then hooked up a little vaccum pump to the farthest away wheel cyclinder and started pumping ......did not know a brake system could leak in all those places blush most just needed a good tightening but one of my flares needed a little filing....all in all for my first complete job i was pleased...but that vaccum pump was the cats a##........dave

Last edited by david dyehouse; 05/17/2011 10:52 PM.

1949 Chevrolet 3100

"When this thing hits 88 miles an hour, you're going to see some serious sh%t." -Doc Brown
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J
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The Brakes worked find before I put the truck in the shop to clean her up. The Master still has fluid in it and the old brake lines are still attached. When I remove the old brake lines do I have to drain the Master & Bench bleed...or can I just fill and bleed till fluid runs clean...Use which Dot fluid ?
Thanks


1954 Chevy 3100 5-Window
In the Stovebolt Gallery
More pix on Photobucket

"True victory is victory over one's self."
Krav Maga isn't pretty ... but it works just fine.


Jimmi V.
Jimmi_V #747889 05/18/2011 2:02 AM
Joined: May 2001
Posts: 7,438
Extreme Gabster
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If everything else is replaced it doesn't make sense to me to use the same master cylinder. Who knows when it was last rebuilt. It may pop one of those old cups next week. I'd rebuild it too.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.
Cletis #747917 05/18/2011 4:01 AM
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I have to agree with Cletis on this one...I'd say use dot 3 fluid...you'll probly use at least a quart maybe a little more.thats whayt i used anyway....dave


1949 Chevrolet 3100

"When this thing hits 88 miles an hour, you're going to see some serious sh%t." -Doc Brown
Joined: Aug 2010
Posts: 368
J
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J Offline
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Thanks for the info guys...The master looks fairly new, doesn't even look like the rest of the under carraige..still has a shine to the black paint.
Thanks Again


1954 Chevy 3100 5-Window
In the Stovebolt Gallery
More pix on Photobucket

"True victory is victory over one's self."
Krav Maga isn't pretty ... but it works just fine.


Jimmi V.

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