'68 Camaro disc swap issue

[jw33]

http://www.maximummotorsports.com/assets/install/pdf/brakes/MMBAK-17.pdf

Read the first part about measuring the pushrod.

[projectPONY]

http://www.maximummotorsports.com/as...s/MMBAK-17.pdf

Read the first part about measuring the pushrod.

It's amazing how much my reading comprehension level rises when a few pics are involved

[shumpertdavid]

Brakes, you are working on the Brakes.


As NoClassic posted, I would check the rod coming out of the booster that pushes the piston on the M/C. If the lines are long enough you might possibly be able to rotate it far enough forward to get your measurements without having to fully remove it. Also the pushrod connection at the brake pedal could be over extended as mentioned before. Like they said, if you can remove the rod from the brake pedal and install it without having to compress the rod then it shouldn't be a problem. If you feel resistance like you are compressing the master cylinder piston as the master cylinder bottoms out on the booster then there is likely an adjustment issue some where.

[Baron Von Crowder]

Brakes, you are working on the Brakes.


As NoClassic posted, I would check the rod coming out of the booster that pushes the piston on the M/C. If the lines are long enough you might possibly be able to rotate it far enough forward to get your measurements without having to fully remove it. Also the pushrod connection at the brake pedal could be over extended as mentioned before. Like they said, if you can remove the rod from the brake pedal and install it without having to compress the rod then it shouldn't be a problem. If you feel resistance like you are compressing the master cylinder piston as the master cylinder bottoms out on the booster then there is likely an adjustment issue some where.

hey, give the guy a brake.

[S_K]

It looks like he has a disc/drum proportioning valve on it. Make sure that it plumbed correctly. The one in the photo looks like a Right Stuff valve. The front two ports are disc and the rear port is drum. https://getdiscbrakes.com/drop/Instructions/AFXDC.pdf

[projectPONY]

Back on this camaro again. We haven't had time to mess with it the last couple of weeks. I unbolted the MC and this is what I see. There is nothing here that looks like is adjustable.

[Z06killinsbf]

If it's like my mustang, the adjustment is made between the pedal and booster

[projectPONY]

That's another problem. The rod between the pedal and booster is in a fixed position. If I turn it in the direction that I think it should go, all it does is either pull away from the pedal or against the pedal. If I turn it so as to draw it back or out of the booster, it applies pressure on the pedal and brake lights come on.

[homealone]

Forgot to mention that the break pedal is stiff. No play whatsoever.

I really doubt the issue is with the pedal side rod unless you are having to compress it in order to get the cross pin through the pedal arm.

That's another problem. The rod between the pedal and booster is in a fixed position. If I turn it in the direction that I think it should go, all it does is either pull away from the pedal or against the pedal. If I turn it so as to draw it back or out of the booster, it applies pressure on the pedal and brake lights come on.

Take a look at this. In most cases you should have a little play between the pedal stop and pressure on the booster rod. If you are pressed up against the stop and as stated above, you have to compress the rod to install the pin, you are activating the brakes.

I think you are on the right track with the rod adjustment. Turn the rod so it pulls away from the pedal. Yes, this will activate the brake lights because the switch activates when the button is released. To correct this, the switch is threaded to adjust in and out. Readjust this and the lights will operate properly.

Sorry about the big pic.