The Ford Barn - View Single Post - Bleeding brakes-pedal pressure problem. Could use some advice/suggestions

acchaplin · 10-23-2024, 12:28 PM

[QUOTE=69a;2345417]The 1/16" has nothing to do with the pedal. He is asking you if the MC piston comes all the way back.
Pull the rubber boot back and make sure, when the pedal is up, that the piston has returned to the rest position, and has a little clearance. (This is the 1/16" that the other poster is referring to). The MC piston has to come right out to it's stop to allow the fluid in the reservoir to enter the pressure side of the system.
Someone also asked you if you have the residual pressure valves fitted. I haven't read your reply to that.
There are two different residual pressure valves, one for disc brakes and one for drum brakes. The residual pressure valves are usually found by removing the brake line fittings at the MC. You can get after market ones that fit in the brake lines. I think they are important, especi

Sorry, I see now that two different subjects are being emphisized.

The "free pedal travel" requirment is stressed in the manual by BOLD print in a couple of places. Since that "free pedal measurment" is emphasized, that is what I thought you guys are/were refering to.

Ok. YES, the MC piston returns to the snap ring by it's own spring resistance every time it is compressed either by hand or the pedal, with the boot off.

I will get grandson to take better pictures of the bottom of the brake pedal assembly this evening. Those pictures I had him take were of just the MC as requested.

The "residual valve" request, again, I quessed I flunked that too. What does it look like? You say they're located inside the MC at the fitting port. The only thing inside those ports is the reversed flair the double flaired line seats into by the flair nut.

That MC is supposed to be a manual drum/drum unit. The outfit that suggested that I use that pictulair MC, told me, that is all I'll need. (no external valves) Funny. I can rmember that statment from years ago, but I can't remember what the MC part # is.

So. I guess that you are going to have to' show'/school me on these residual valves, along with the pedal ratio deal. As I have stated, I have no idea what it looks like, where to find it, and what to do with it. thanks

10-23-2024, 12:28 PM	#37
acchaplin Senior Member Join Date: Feb 2023 Posts: 231	Re: Bleeding brakes-pedal pressure problem. Could use some advice/suggestions [QUOTE=69a;2345417]The 1/16" has nothing to do with the pedal. He is asking you if the MC piston comes all the way back. Pull the rubber boot back and make sure, when the pedal is up, that the piston has returned to the rest position, and has a little clearance. (This is the 1/16" that the other poster is referring to). The MC piston has to come right out to it's stop to allow the fluid in the reservoir to enter the pressure side of the system. Someone also asked you if you have the residual pressure valves fitted. I haven't read your reply to that. There are two different residual pressure valves, one for disc brakes and one for drum brakes. The residual pressure valves are usually found by removing the brake line fittings at the MC. You can get after market ones that fit in the brake lines. I think they are important, especi Sorry, I see now that two different subjects are being emphisized. The "free pedal travel" requirment is stressed in the manual by BOLD print in a couple of places. Since that "free pedal measurment" is emphasized, that is what I thought you guys are/were refering to. Ok. YES, the MC piston returns to the snap ring by it's own spring resistance every time it is compressed either by hand or the pedal, with the boot off. I will get grandson to take better pictures of the bottom of the brake pedal assembly this evening. Those pictures I had him take were of just the MC as requested. The "residual valve" request, again, I quessed I flunked that too. What does it look like? You say they're located inside the MC at the fitting port. The only thing inside those ports is the reversed flair the double flaired line seats into by the flair nut. That MC is supposed to be a manual drum/drum unit. The outfit that suggested that I use that pictulair MC, told me, that is all I'll need. (no external valves) Funny. I can rmember that statment from years ago, but I can't remember what the MC part # is. So. I guess that you are going to have to' show'/school me on these residual valves, along with the pedal ratio deal. As I have stated, I have no idea what it looks like, where to find it, and what to do with it. thanks