Brake Bleeding Sequence Question
#1
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Brake Bleeding Sequence Question
I've always been under the impression that you bleed brakes starting at the bleeder furthest from the master cylinder. On a 71, with the master cylinder on the driver's side this sequence should be:
RR Outer
RR Inner
LR Outer
LR Inner
RF
LF
The Chilton's manual along with an earlier post here gives the sequence as:
LR Inner
LR Outer
RR Inner
RR Outer
LF
RF
This makes no sense to me so I'm obviously missing something. I would appreciate any input as I need to flush out and re-bleed my lines.
RR Outer
RR Inner
LR Outer
LR Inner
RF
LF
The Chilton's manual along with an earlier post here gives the sequence as:
LR Inner
LR Outer
RR Inner
RR Outer
LF
RF
This makes no sense to me so I'm obviously missing something. I would appreciate any input as I need to flush out and re-bleed my lines.
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The brake line runs down the right side of the car so the left is the furthest!
Didn't make sense to me till I noticed that.
The inner outer issue - my guess is you might transfer air to the outer from the inner one if the outer was done first. I believe the outers are fed from the inner half. Since this is a port and not a brake line more of an air trap?
Didn't make sense to me till I noticed that.
The inner outer issue - my guess is you might transfer air to the outer from the inner one if the outer was done first. I believe the outers are fed from the inner half. Since this is a port and not a brake line more of an air trap?
#9
Safety Car
Originally Posted by Techno
The brake line runs down the right side of the car so the left is the furthest!
Didn't make sense to me till I noticed that.
The inner outer issue - my guess is you might transfer air to the outer from the inner one if the outer was done first. I believe the outers are fed from the inner half. Since this is a port and not a brake line more of an air trap?
Didn't make sense to me till I noticed that.
The inner outer issue - my guess is you might transfer air to the outer from the inner one if the outer was done first. I believe the outers are fed from the inner half. Since this is a port and not a brake line more of an air trap?
#10
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Cruise-In 5-6-7-8-9-11-12 Veteran
A CI-6 Car Show Winner
Copied word for word from my GM manual:
SEQUENCE FOR BLEEDING
It is advisable to bleed one valve at a time to avoid allowing fluid level in reservoir to become dangerously low. The correct sequence is to bleed the valve, either front or rear system nearest master cylinder first. This sequence expels air from lines and calipers or wheel cylinders nearest to the master cylinder first and eliminates the possibility that air in a line close to the master cylinder may enter a line farther away after it has been bled.
(end quote)
So the way I read it doesn't matter if you do the front or rear first, but the proper rear sequence is LR inner, LR outer, RR inner, RR outer. The sequence for the front would be LF then RF.
SEQUENCE FOR BLEEDING
It is advisable to bleed one valve at a time to avoid allowing fluid level in reservoir to become dangerously low. The correct sequence is to bleed the valve, either front or rear system nearest master cylinder first. This sequence expels air from lines and calipers or wheel cylinders nearest to the master cylinder first and eliminates the possibility that air in a line close to the master cylinder may enter a line farther away after it has been bled.
(end quote)
So the way I read it doesn't matter if you do the front or rear first, but the proper rear sequence is LR inner, LR outer, RR inner, RR outer. The sequence for the front would be LF then RF.
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Thanks for the input. I've always used the Mason Jar and plastic tubing method to bleed brakes but have heard some good things about replacing the normal bleeders with speed bleeders. Any thoughts on this?