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11/29/11 9:16am - Original Message: 'BLEEDING BRAKES AND MASTER CYL'
68vet427
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macedon, NY - USA

Vette(s):
68 COUPE 454 HAS MOTION HOOD SCOOP, REVERSED GILLS ZL-1 FENDER FLARES AND MOTION REAR SPOILER, LEMAN'S GAS CAP, BUCKET HEADLIGHTS. CAN-AM FRONT RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20, LOOKS FAST STANDING STILL !!

Joined: 7/20/2006
Posts: 360
OK, so I just filled my M/C with brake fluid.
I opened the bleeder valves and waited for the lines to be gravity bled.
Waited 1 hour , nothing, came back another hour, still nothing.
I tried pumping the pedal, nothing still.
I let it set over night hoping it would just start bleeding. Nothing.
Now, I will say that I did not bench bleed the M/C. I just found out about this as I started reading.
Any good tips ????
Confused 
 
Thanks,
Joe
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11/29/11 10:25am - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
corvette440hp Lifetime Member
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Check this out, it should explain a lot:  

http://www.youtube.com/watch?v=i3Jhbz4mVKw



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11/29/11 12:35pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
cthulhu Lifetime Member
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Hot Springs, AR - USA

Vette(s):
69 Conv #'s Match 427, TKO-600, 3.36HD-Posi, T/T, PS, PB, PW, SP, Lthr, Comp Mag 270 & Pro Rlr Rockers, Edel Air-Gap RPM, BG SD 750 MS, MSD 6AL+Tach Dist+ Blaster SS+Wires, Hly Bl Fuel Pump, K&N, Jet-Hot Hkr Side-Pipes,Steeroids, Al Rad, Spal Fans

Joined: 4/24/2004
Posts: 3194
I have used pressure and vacuum successfully I usually use vacuum on my American cars and pressure on my foreign (no reason other than I have a pressure bleed adapter that fits BMW and jaguar and don't have one for older Chevy master cylinders) You can buy a vacuum bleeder kit at autozone for about 20$

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11/29/11 12:36pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
cthulhu Lifetime Member
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Hot Springs, AR - USA

Vette(s):
69 Conv #'s Match 427, TKO-600, 3.36HD-Posi, T/T, PS, PB, PW, SP, Lthr, Comp Mag 270 & Pro Rlr Rockers, Edel Air-Gap RPM, BG SD 750 MS, MSD 6AL+Tach Dist+ Blaster SS+Wires, Hly Bl Fuel Pump, K&N, Jet-Hot Hkr Side-Pipes,Steeroids, Al Rad, Spal Fans

Joined: 4/24/2004
Posts: 3194
Also Did you bleed master cylinder before connecting lines?

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11/29/11 1:01pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
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A pressure bleeder will get the air out of the master, if it wasn't "bench" bled before installing it. I'm not all that hot on using the vacuum bleeders for anything other than getting the fluid down to the calipers....after that, it's time to really bleed them. Using the vacuum pumps(MityVac, etc) can suck air back into the calipers past the seals if yer not careful, so ya gotta watch it.
Joe, you prolly need to bench the master before going any farther. As is shown in the vid that Larry posted. Of course, it's easy if you don't have a car on top of the master, like that guy had! I usually put my masters in a bench vise, attach the vinyl hoses to it, and then use a large screwdriver to push the piston in/out, until there is no more air in the hoses. Yo can do it on the car if you have a helper, but....you're taking a chance on some of the brake fluid getting all over your nice fresh paint...Censored
Gravity bleeding has never really worked for me...in order for that to work, you need to have fluid in the lines to start with. If the master wasn't bled first, it'll never happen.
Even WITH a pressure bleeder, I have to go around ALL of the bleeders at least 3 times to be certain all of the air is out of the system.


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11/29/11 1:13pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
68vet427
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macedon, NY - USA

Vette(s):
68 COUPE 454 HAS MOTION HOOD SCOOP, REVERSED GILLS ZL-1 FENDER FLARES AND MOTION REAR SPOILER, LEMAN'S GAS CAP, BUCKET HEADLIGHTS. CAN-AM FRONT RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20, LOOKS FAST STANDING STILL !!

Joined: 7/20/2006
Posts: 360
Guys,
thanks for the info.
I can "rent" a vacuum bleeder from advance auto.
No charge as long as you return it.
I'm going to try that first.
I dont feel comfortable taking the M/C off the car with it full of brake fluid.
I will try to get the fluid down in the lines to the calipers and then finish them the conventional way.
This may take a little longer but seems safer.
I wish I knew I had to bench bleed it first, but hindsite is 20/20!
 
Now when I use the vacuum pump, is the M/C cover on or off?
 
Thanks,
Joe
 
 


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11/29/11 1:31pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19457
Cover OFF on the master for the vacuum bleed. Be sure not to draw too much of a vacuum at first...too much, and all you'll be doing is sucking air past the seals. Just pump it gently, until you see fluid coming thru the hose.
Start at the right rear, and be sure to do BOTH sides of the rear calipers...starting with the outer bleeder first...then the inner. Then move to the left rear, then right front, the left front.
hth.


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Joel Adams
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11/29/11 1:41pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
yostusota
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York, PA - USA

Vette(s):
1969 daytona conv. all original 350 350 380 4 sp w/air..and hard top

Joined: 5/18/2010
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I have a vacuum bleeder and it does pull air into the calipers..I put an adjustable pressure regulator on it to knock down the air pressure down to 25 psi..it works then..leave the cover off the master when you do this and stay close to the master cylinder too as it will pull the fluid thru real fast once the fluid starts moving..once you get the fluid at all 4 wheels then pump the brakes to manually bleed them to finish it off..do this part with the cover clamped down on the master and keep an eye on the fluid level..it doesn't take long once you get the fluid moving..its just getting it to that point!

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11/29/11 1:45pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
68vet427
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macedon, NY - USA

Vette(s):
68 COUPE 454 HAS MOTION HOOD SCOOP, REVERSED GILLS ZL-1 FENDER FLARES AND MOTION REAR SPOILER, LEMAN'S GAS CAP, BUCKET HEADLIGHTS. CAN-AM FRONT RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20, LOOKS FAST STANDING STILL !!

Joined: 7/20/2006
Posts: 360
Cool guys.
Thanks again.
I'll let you know how I make out tonight.
Joe


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   DRIVE FAST-TAKE CHANCES !!! 

     

   CLICK HERE TO CHECK OUT MY 68 VETTE MOTION CLONE RESTORATION

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11/29/11 5:39pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
Norsky Lifetime Member
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Twin Lakes, CO - USA

Vette(s):
SOLD - "The Toy" - 1970 Convertible
SOLD - "The Beast" - 1990 ZR-1 (#682)
"BLKBRRD" - 1978 Trans Am, 400ci/285hp, 4 spd, Black w/black interior, Hurst t-tops

Joined: 1/23/2002
Posts: 6714
Here's a pic of the pressure bleeder I made:
 
 
I have used it on several Vettes (both at home and in Hot Springs!) and a couple of other cars and trucks as well.  With extra master cylinder covers you can plug-n-play very easily but the steel plate works on a wide variety of older master cylinders.


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11/29/11 6:39pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
68vet427
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macedon, NY - USA

Vette(s):
68 COUPE 454 HAS MOTION HOOD SCOOP, REVERSED GILLS ZL-1 FENDER FLARES AND MOTION REAR SPOILER, LEMAN'S GAS CAP, BUCKET HEADLIGHTS. CAN-AM FRONT RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20, LOOKS FAST STANDING STILL !!

Joined: 7/20/2006
Posts: 360

Now thats pretty darn clever !!!!

I am going to have to remember this for the next project!!!
Thanks !!
Joe
 


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   DRIVE FAST-TAKE CHANCES !!! 

     

   CLICK HERE TO CHECK OUT MY 68 VETTE MOTION CLONE RESTORATION

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11/30/11 1:19pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
corvette440hp Lifetime Member
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What brake fuid are you going to use?

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11/30/11 1:29pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
yostusota
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York, PA - USA

Vette(s):
1969 daytona conv. all original 350 350 380 4 sp w/air..and hard top

Joined: 5/18/2010
Posts: 1518
corvette440hp said: What brake fuid are you going to use?



Ok......YOU HAD TO ASK THAT QUESTION!!! Ebo made you do it!!

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11/30/11 1:40pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
68vet427
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macedon, NY - USA

Vette(s):
68 COUPE 454 HAS MOTION HOOD SCOOP, REVERSED GILLS ZL-1 FENDER FLARES AND MOTION REAR SPOILER, LEMAN'S GAS CAP, BUCKET HEADLIGHTS. CAN-AM FRONT RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20, LOOKS FAST STANDING STILL !!

Joined: 7/20/2006
Posts: 360
funny you should ask.
well, i decided to try to save some money.
i have some transmission fluid left over so i mixed it with some paint thinner that i also had on the shelf.
it looks just like brake fluid so i figured it will work just fine.
joe
 
 
 


____________________________________

   DRIVE FAST-TAKE CHANCES !!! 

     

   CLICK HERE TO CHECK OUT MY 68 VETTE MOTION CLONE RESTORATION

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11/30/11 1:43pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
corvette440hp Lifetime Member
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Posts: 8205
yostusota said:
corvette440hp said: What brake fuid are you going to use?



Ok......YOU HAD TO ASK THAT QUESTION!!! Ebo made you do it!!

Ebo minds think alike..................(ok you know he made me do it)!

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corvette440hp
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11/30/11 1:50pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
corvette440hp Lifetime Member
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68vet427 said:
funny you should ask.
well, i decided to try to save some money.
i have some transmission fluid left over so i mixed it with some paint thinner that i also had on the shelf.
it looks just like brake fluid so i figured it will work just fine.
joe
 
 
 

I kind of though lacquer thinner with the Dextron might be a little more effective........let us know how your "stuff" works out for you............

|UPDATED|11/30/2011 11:50:54 AM (AZT)|/UPDATED|


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corvette440hp
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11/30/11 1:59pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
68vet427
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macedon, NY - USA

Vette(s):
68 COUPE 454 HAS MOTION HOOD SCOOP, REVERSED GILLS ZL-1 FENDER FLARES AND MOTION REAR SPOILER, LEMAN'S GAS CAP, BUCKET HEADLIGHTS. CAN-AM FRONT RACING SPOILER. CHROME HOOKER HEADERS AND SIDE PIPES! 4 SPEED M20, LOOKS FAST STANDING STILL !!

Joined: 7/20/2006
Posts: 360
LOL !!!!!LOL
Ok, i didnt do that.
I put in silicone fluid.
I heard pros and cons but i think it'll be fine.
Its too late now anyways .Ermm
 
Now, please , nobody try the mixure i said i made.
I take no responsibility if something goes wrong. 
But, if it does work, I want halfs on the profits!!!
Joe


____________________________________

   DRIVE FAST-TAKE CHANCES !!! 

     

   CLICK HERE TO CHECK OUT MY 68 VETTE MOTION CLONE RESTORATION

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11/30/11 7:53pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
corvette440hp Lifetime Member
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68vet427 said: LOL !!!!!LOL
Ok, i didnt do that.
I put in silicone fluid.
I heard pros and cons but i think it'll be fine.
Its too late now anyways .Ermm
 
Now, please , nobody try the mixure i said i made.
I take no responsibility if something goes wrong. 
But, if it does work, I want halfs on the profits!!!
Joe

Joe, silicone is the way that I'm going also. On a different note;  hey we can enjoy having fun and still accomplish stuff. I love your humor........keep it up! Ebo and I need more jokesters. 

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corvette440hp
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11/30/11 8:06pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
yostusota
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York, PA - USA

Vette(s):
1969 daytona conv. all original 350 350 380 4 sp w/air..and hard top

Joined: 5/18/2010
Posts: 1518
I used the new synthetic dot 3 silicone gear lube..I got it next to the blinker fluid..

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My first parade at Carlisle 2010
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11/30/11 8:33pm - Reply: 'Re: BLEEDING BRAKES AND MASTER CYL'
corvette440hp Lifetime Member
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yostusota said: I used the new synthetic dot 3 silicone gear lube..I got it next to the blinker fluid..

Dang, I was wunder-un about my blinkers be-un on the blink........I'm gunna haff-ta look fur that blinker fluid.

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corvette440hp
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