'79 Bleeding sequence?
Thread Starter
Racer
Joined: Aug 2011
Posts: 455
Likes: 7
From: Lewes Delaware
'79 Bleeding sequence?
The shop manual for my '79 says to bleed the brakes in the following sequence: left rear, right rear, left front, right front.
Since the right rear is farthest from the MC it would seem that should be the starting point followed by the left rear, right front, left front.
Anyone know the reason for this sequence?
Since the right rear is farthest from the MC it would seem that should be the starting point followed by the left rear, right front, left front.
Anyone know the reason for this sequence?
Melting Slicks
Joined: Jun 2011
Posts: 3,114
Likes: 597
The shop manual for my '79 says to bleed the brakes in the following sequence: left rear, right rear, left front, right front.
Since the right rear is farthest from the MC it would seem that should be the starting point followed by the left rear, right front, left front.
Anyone know the reason for this sequence?
Since the right rear is farthest from the MC it would seem that should be the starting point followed by the left rear, right front, left front.
Anyone know the reason for this sequence?
Drifting
Joined: Jul 2002
Posts: 1,944
Likes: 20
From: The only Corvettes in Highett Victoria
Gravity is your friend
The shop manual for my '79 says to bleed the brakes in the following sequence: left rear, right rear, left front, right front.
Since the right rear is farthest from the MC it would seem that should be the starting point followed by the left rear, right front, left front.
Anyone know the reason for this sequence?
Since the right rear is farthest from the MC it would seem that should be the starting point followed by the left rear, right front, left front.
Anyone know the reason for this sequence?
However, if you can raise the front of the car a few feet, say on some ramps, then leave it overnight, then the heavier (than air) brake fluid will migrate to the rear, as well as the front calipers, and the air in the system will migrate upwards to the master cylinder. It will make your job of bleeding them the next day much easier.
As to the "correct" sequence, there really isn't one. I drive right hand drive Holdens, as well as the Corvettes, and it doesn't seem to matter which way you do them. The Holdens have the master cylinder on the right side of the firewall. One trick though, is to have a RUBBER hammer with you and give the calipers a few taps with it to help shake the air bubbles loose before bleeding. Make sure you do the rear calipers in the sequence that sstocker31 says or you will have problems later on.
Hope this helps.
Regards from Down Under.
aussiejohn
Le Mans Master
Joined: Oct 2007
Posts: 7,441
Likes: 965
From: Tennessee/Rhode Island
I have bled the 78 brakes many times over the years for various reasons and always start with RR first. Normal brake procedure of pumping the air out using the brake pedal is what I always do and never have had a brake issue...all these years-32+ and counting.
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Melting Slicks
Joined: Jul 2006
Posts: 2,282
Likes: 483
From: Salmon Arm, BC
Read post #3 by TOM454......pay close attention to the section about the master cylinder and how the output ports aren't at the top of the bore. If you don't have bleeders then bench bleeding and moving the M/C around to help get rid of trapped air bubbles is in order.
https://www.corvetteforum.com/forums...post1569348376
https://www.corvetteforum.com/forums...post1569348376
Last edited by OMF; Aug 30, 2015 at 10:39 PM.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
It makes no sense to bleed the brakes from the rear to the front. If I do the 'farthest' rear bleeder first and then do one nearer to the M/C, wouldn't any air that got into the line from the near brake caliper just be passed on to the farthest one (that I've already done)????
I've always bled from the nearest bleeder to the farthest one, in sequence. Never had a problem having to go back to a previous bleeder.
I've always bled from the nearest bleeder to the farthest one, in sequence. Never had a problem having to go back to a previous bleeder.