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Username Post: Brakes still spongy after replacing hardware        (Topic#347120)
Adam63impala 
"2nd Year" Silver Supporting Member
Posts: 561
Adam63impala
Loc: From Memphis to Florida
Reg: 12-01-15
09-13-17 12:10 PM - Post#2707568    

Okay so me and a coworker of mine replaced all 4 wheel cylinders, pads and springs , bled brakes twice and I also bled the MC . Drove In reverse a few times and slammed on brakes . Still didn't help . Still spongy . . They felt alot tighter before the change and would screech tires to a stop . . What else can I try ? Maybe adjust all 4 star wheels a little more ? Thank guys



 
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gkralik3645 
"4th Year" Silver Supporting Member
Posts: 173
gkralik3645
Loc: omaha
Reg: 12-05-13
09-13-17 03:04 PM - Post#2707580    
    In response to Adam63impala

Did you adjust your brakes before you did the backing up and hitting the brake pedal? You must.

George




 
Adam63impala 
"2nd Year" Silver Supporting Member
Posts: 561
Adam63impala
Loc: From Memphis to Florida
Reg: 12-01-15
09-13-17 03:08 PM - Post#2707582    
    In response to gkralik3645

He adjusted them to where they dragged just a little .. should I make them a little tighter ? I just don't want to go too tight ..



 
69_BOWTIE 
Senior Member
Posts: 922

Loc: WYOMING,USA
Reg: 02-27-02
09-13-17 03:22 PM - Post#2707584    
    In response to Adam63impala

Just give the star wheel's a couple more clicks see if it helps . I had my fronts off a bazillion times to get them to quit pulling to one side.

2001 Silverado 4X4
2005 FXDWGI
69 CHEVY Short Step
63 IMPALA 2/DR HRDTOP 327


 
Adam63impala 
"2nd Year" Silver Supporting Member
Posts: 561
Adam63impala
Loc: From Memphis to Florida
Reg: 12-01-15
09-13-17 03:24 PM - Post#2707585    
    In response to 69_BOWTIE

OK I will try that , just the fronts ?



 
pvs409 
"5th Year" Gold Supporting Member
Posts: 1814
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
09-13-17 03:35 PM - Post#2707587    
    In response to Adam63impala

My experience is that the rear wheel adjustment has more affect on the brake pedal than the front.

I install self adjusting brakes on all 4 wheels on my 62's (that did not come with them from the factory.)
Paul

57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4
62 ImpHT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible under frameoff
Website http://paulstensland.com/
[image]http://chevytalk.org/sm/26453.jpg[/ima


 
Adam63impala 
"2nd Year" Silver Supporting Member
Posts: 561
Adam63impala
Loc: From Memphis to Florida
Reg: 12-01-15
09-13-17 04:20 PM - Post#2707593    
    In response to pvs409

Okay cool I will try the rear first . Also I thought my 63 had self adjusting ..maybe not



 
threeimpalas 
Senior Member
Posts: 1112

Loc: Central Iowa
Reg: 02-21-02
09-14-17 05:37 PM - Post#2707669    
    In response to Adam63impala

If they're still spongy after adjusting the shoes, then you likely still have air in the system.

Mike
'58-62s and 348/409s


 
beagrizzly 
"9th Year" Gold Supporting Member
Posts: 1720
beagrizzly
Age: 67
Loc: south texas
Reg: 08-04-12
09-14-17 06:32 PM - Post#2707678    
    In response to Adam63impala

Spongy is ALWAYS air in the system. Always.
My two pennies after working on these cars all of my driving life. That started when your car was new.
IF you're gonna be a bear..........



 
1963er 
Contributor
Posts: 181
1963er
Age: 67
Loc: Joppa, Md.
Reg: 12-20-15
09-15-17 04:39 AM - Post#2707710    
    In response to beagrizzly

Did you bench bleed the Master Cylinder? That will cause the problem



 
junky 
Frequent Contributor
Posts: 2169

Loc: Northeast CT
Reg: 06-27-10
09-15-17 07:44 AM - Post#2707722    
    In response to 1963er

  • 1963er Said:
Did you bench bleed the Master Cylinder? That will cause the problem



Ah... Pray tell, how can bench bleeding the master cylinder cause a problem?


Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
55Brodie 
Contributor
Posts: 103
55Brodie
Age: 65
Loc: Little River, SC
Reg: 12-26-15
09-15-17 05:13 PM - Post#2707755    
    In response to Adam63impala

Double check you have the brake shoes oriented correctly. When adjusting the drag, do so with the tires/wheels installed. Tighten the star wheels until you can no longer rotate the tire by hand, then back off 7 or 8 clicks.
did you replace the 2 front and 1 rear brake hoses?



 
rober 
Silver Supporting Member
Posts: 82
rober
Loc: sweden
Reg: 03-13-15
09-16-17 10:16 PM - Post#2707884    
    In response to 1963er

i have put in disc brakes in front and Everything is new, master cylinder etc and i did bench bleed the master cylinder but why is that so important?



 
4dr 57 
"9th Year" Silver Supporting Member
Posts: 4434
4dr 57
Loc: Texas Hill Country
Reg: 11-10-04
09-17-17 07:36 AM - Post#2707901    
    In response to Adam63impala

Use a syringe to back bleed the MC. Have a second tub of new brake fluid so you don't reuse aireated air.This will make the process much easier as you can bleed the MC on the car.

Use speedy bleeders (Earl's are good) to bleed the lines. You can leave them in place when finished.
When bleeding, start with the wheel cylinder farthest away from the MC 1st. This is usually the right side rear but check this to make sure.
Stanley



 
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