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Brake Bleeding Sequence Question

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Old 11-14-2005, 09:08 AM
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Apache61
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Default 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.
Old 11-14-2005, 10:23 AM
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wcsinx
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Chilton's has it right. I believe it's the way the distribution block is setup that gives us that funky bleed order.
Old 11-14-2005, 10:44 AM
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mvftw
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, remember Vette are NOT your NORMAL car... it's closer, then further...
Old 11-14-2005, 02:43 PM
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Apache61
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I appreciate the responses. Still makes no sense to me but I'll try it that way.
Old 11-14-2005, 02:44 PM
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Apache61
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Thanks for your responses.
Old 11-14-2005, 02:45 PM
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Still makes no sense but I'll try it that way. Thanks for your input.
Old 11-14-2005, 04:00 PM
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I really didn't ride the short bus to work this morning-----the forum has been a little screwy.
Old 11-14-2005, 08:04 PM
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Techno
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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?
Old 11-14-2005, 08:48 PM
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SharkAttack
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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?
Bingo!
Old 11-14-2005, 09:42 PM
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Big Fish
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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.
Old 11-15-2005, 09:54 AM
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Apache61
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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?

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