Bench Bleeding Master Cylinder ?
#1
Drifting
Thread Starter
Bench Bleeding Master Cylinder ?
Ok, its for my Buick- not the vette.
I bought a New one from Napa and it had the two plastic plugs with 2 hoses. These 2 plugs fit right in perfectly and the 2 hoses are coming up and around into the brake fluid.
My problem: I have been pushing in the screwdriver very slowly (bleeding) in and out - for 15 minutes. I still see tiny bubbles coming out and I can push it in the same amount as when I started.
Does it normally take this many strokes to get all the air out?
Do you know that you are done when you can't push it in more than 1/8 "?
thanks
I bought a New one from Napa and it had the two plastic plugs with 2 hoses. These 2 plugs fit right in perfectly and the 2 hoses are coming up and around into the brake fluid.
My problem: I have been pushing in the screwdriver very slowly (bleeding) in and out - for 15 minutes. I still see tiny bubbles coming out and I can push it in the same amount as when I started.
Does it normally take this many strokes to get all the air out?
Do you know that you are done when you can't push it in more than 1/8 "?
thanks
#2
Ok, its for my Buick- not the vette.
I bought a New one from Napa and it had the two plastic plugs with 2 hoses. These 2 plugs fit right in perfectly and the 2 hoses are coming up and around into the brake fluid.
My problem: I have been pushing in the screwdriver very slowly (bleeding) in and out - for 15 minutes. I still see tiny bubbles coming out and I can push it in the same amount as when I started.
Does it normally take this many strokes to get all the air out?
Do you know that you are done when you can't push it in more than 1/8 "?
thanks
I bought a New one from Napa and it had the two plastic plugs with 2 hoses. These 2 plugs fit right in perfectly and the 2 hoses are coming up and around into the brake fluid.
My problem: I have been pushing in the screwdriver very slowly (bleeding) in and out - for 15 minutes. I still see tiny bubbles coming out and I can push it in the same amount as when I started.
Does it normally take this many strokes to get all the air out?
Do you know that you are done when you can't push it in more than 1/8 "?
thanks
"Do you know that you are done when you can't push it in more than 1/8 "? Answere..NO....you will always be able to push it when bench bleeding.
Last edited by Retro78; 01-27-2007 at 07:06 PM.
#3
Drifting
Thread Starter
It seemed like the one on the vette would get very hard to push the piston in when it was done spitting air out.
This one seem to eventually quit spitting air but the piston would not get any harder.
I also noticed a small amount of wetness at the piston bore where I was pushing it in.
I decided to mount it and bleed the brakes but it doesn't feel very good.
Could I have gotten a M/C dud?
This one seem to eventually quit spitting air but the piston would not get any harder.
I also noticed a small amount of wetness at the piston bore where I was pushing it in.
I decided to mount it and bleed the brakes but it doesn't feel very good.
Could I have gotten a M/C dud?
#4
Le Mans Master
Member Since: Sep 2001
Location: Wellington, FL
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St. Jude Donor '11-'12-'13-'14-'15-'16-'17-‘18-'19-'20-'21-'22-'23-'24
It seemed like the one on the vette would get very hard to push the piston in when it was done spitting air out.
This one seem to eventually quit spitting air but the piston would not get any harder.
I also noticed a small amount of wetness at the piston bore where I was pushing it in.
I decided to mount it and bleed the brakes but it doesn't feel very good.
Could I have gotten a M/C dud?
This one seem to eventually quit spitting air but the piston would not get any harder.
I also noticed a small amount of wetness at the piston bore where I was pushing it in.
I decided to mount it and bleed the brakes but it doesn't feel very good.
Could I have gotten a M/C dud?
#5
Drifting
Thread Starter
It doesn't go to the floor but it does feel a little spongy.
The brakes don't bite until a lot of pedal travel. Just drove it around the block to test.
The brakes don't bite until a lot of pedal travel. Just drove it around the block to test.
#6
Le Mans Master
Member Since: Sep 2001
Location: Wellington, FL
Posts: 9,996
Received 417 Likes
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St. Jude Donor '11-'12-'13-'14-'15-'16-'17-‘18-'19-'20-'21-'22-'23-'24
Typical symptoms when air is present in the system. Try rebleeding in the proper sequence. I always like to gravity bleed brakes as this procedure always works for me. However, it is more time consuming.