Brake Pedal Free Play Adjustment?
Thread Starter
Burning Brakes
Joined: Dec 2005
Posts: 877
Likes: 102
From: TX Hill Country
Brake Pedal Free Play Adjustment?
I have 2008 A6 base coupe w/Z51. Is it possible to reduce the amount of free play at the top of the brake pedal movement? I think on older cars this free play could be adjusted, but I really can't remember.
The reason I ask is because I have a BMW that has very little free play. When I drive my Corvette, it just take getting used to again.
The reason I ask is because I have a BMW that has very little free play. When I drive my Corvette, it just take getting used to again.
Le Mans Master
Joined: Oct 2000
Posts: 6,473
Likes: 706
From: Sausalito CA
I am looking forward to replies.
I am not sure how easy this request is.
A simple bolt and lock nut might do....but how to attach?
FWIW
I don't think my Vert's pedal has much play and personally have never been bothered by its freeplay.
Has the OP done a brake bleed? (Requires a Tech II to bleed out the ABS module plus there is a sequence of which wheel to bleed first, second etc.)
Worn pads/rotors can increase freeplay.
Possible air leak at hose to power brake canister?
Caliper piston leaks?
Leak at caliper brake hose? (Many have commented about an issue with the hose threadings)
I am not sure how easy this request is.
A simple bolt and lock nut might do....but how to attach?
FWIW
I don't think my Vert's pedal has much play and personally have never been bothered by its freeplay.
Has the OP done a brake bleed? (Requires a Tech II to bleed out the ABS module plus there is a sequence of which wheel to bleed first, second etc.)
Worn pads/rotors can increase freeplay.
Possible air leak at hose to power brake canister?
Caliper piston leaks?
Leak at caliper brake hose? (Many have commented about an issue with the hose threadings)
Thread Starter
Burning Brakes
Joined: Dec 2005
Posts: 877
Likes: 102
From: TX Hill Country
I bought the car with less the 15k miles on it. I recently had the calipers powder coated and replaced the pads with Akebono ceramics, flushed the fluid, and installed ss brake lines. I did not use a Tech 2 to bleed the lines. I used a power flush. No leaks. The brakes feel just like they did prior to the changes, albeit, a little less initial bite and no brake dust. Rotors show some wear but not much. Still greater than 31mm thickness.
I am talking about the pedal feel with the pedal at rest. I haven't measured it yet, but it feels like the pedal moves about 0.75 to 1 inch before any resistance is felt. The brakes work great, good feel, will activate anti-lock in an emergency stop.
This could be just the way it is. I have never driven another Corvette, so I don't have anything in which to compare it. I just wondered if there is any adjustment to the top of the pedal. If not, I'll just live with it.
I am talking about the pedal feel with the pedal at rest. I haven't measured it yet, but it feels like the pedal moves about 0.75 to 1 inch before any resistance is felt. The brakes work great, good feel, will activate anti-lock in an emergency stop.
This could be just the way it is. I have never driven another Corvette, so I don't have anything in which to compare it. I just wondered if there is any adjustment to the top of the pedal. If not, I'll just live with it.
Last edited by PDsVettes; Jun 27, 2015 at 11:22 AM.
Race Director
Joined: Dec 2013
Posts: 12,501
Likes: 3,626
Yes, no, maybe.
There is no adjustment in the OEM brake pedal push rod, but do start with checking to make sure that the eyelet of the push rod is not worn out, the rod still straight, and the pin that retains it to the pedal is not worn out.
As for the adjustment part, got a lathe handy?
Hence to make the push rod adjustable instead.
http://parts.nalleygmc.com/showAssem...category=19393
As for taking up the slack, really the wrong way to go if this is a manual car, since with a little more slack in the pedal instead, makes for much easy "heal to toe" shifting instead.
There is no adjustment in the OEM brake pedal push rod, but do start with checking to make sure that the eyelet of the push rod is not worn out, the rod still straight, and the pin that retains it to the pedal is not worn out.
As for the adjustment part, got a lathe handy?
Hence to make the push rod adjustable instead.
http://parts.nalleygmc.com/showAssem...category=19393
As for taking up the slack, really the wrong way to go if this is a manual car, since with a little more slack in the pedal instead, makes for much easy "heal to toe" shifting instead.
Thread Starter
Burning Brakes
Joined: Dec 2005
Posts: 877
Likes: 102
From: TX Hill Country
Thanks, Dano. I had seen that illustration earlier and it didn't look like there was anything to adjust. I don't think that I want to rip out the booster and have any machine work done to the shaft. It's an A6 and I don't track the car. I'll just adjust to it the way that it is constructed.
