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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Apr 2009 Posts: 252 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 252 | I installed a dual brake booster with my disc/drum set up. What I noticed is that my swing pedal doesn't return all the way to the stop/brake switch after the engine has been running and you apply the pedal. It will return after you shut it down and hit the pedal a few times, I guess I'm bleeding out the booster. Does it sound like I need to fine tune my rod adjustment? Thanks G | | | | | Joined: Mar 2008 Posts: 3,750 'Bolter | | 'Bolter Joined: Mar 2008 Posts: 3,750 | I assume nothing is binding?
I'm not sure about earlier models but my AD has a return spring that attaches to the brake arm and hooks to the chassis.
Admittedly I had to form a new spring attachment on my chassis,due to the chassis being boxed.
1950 Chevy Advance Design 3100 in ScotlandIn the Stovebolt GalleryMore pix on Flickr. I've definately got this truck thing in my blood ... my DNA sequence has torque settings"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.
| | | | | Joined: Apr 2009 Posts: 252 Shop Shark | | Shop Shark Joined: Apr 2009 Posts: 252 | No nothing binding, I set it up to ensure full stroke of master cylinder and it works fine until you start it and create a vacuum, it's not enough to apply the brakes but enough to keep the pedal to fully return. Now that it is bled out I'll try and fine tune it. Hope to get a road test in this weekend before tearing it back down. Thanks G | | | | | Joined: May 2005 Posts: 1,624 Shop Shark | | Shop Shark Joined: May 2005 Posts: 1,624 | Got the same dual or pancake booster on my streetrod. Like jockbolter50 says, hang a spring for a positive and complete pedal reurn. I did to get mine to act correctly. You may not have to tear it down.
Six volt guy living in a twelve volt world
| | | | | Joined: May 2004 Posts: 1,312 'Bolter | | 'Bolter Joined: May 2004 Posts: 1,312 | Could be a booster issue, or something going on with the check valve on the vacuum line ?. Booster retains some vacuum after you shut off motor - enuf for 1 or 2 pedal pushes. Perhaps it's not fully releasing ? | | |
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