The Ford Barn

California Charlie · 06-21-2017, 07:47 PM

Hi Guys,

Two questions regarding my current Model A restoration work.
1. The Front Brake Assembly. Where does the felt washer on the 7 1/4" long Operating Pin go? The Front Brake breakdown diagram I have looks like it fits (sandwiched) above the Operating Wedge and bottom part of the backing plate. I thought that to be where it fits in the assembly, but somewhere along the line I either heard or read something about it being located/installed within the top part of King Pin. Which is correct?
2. The frame webbing. How far is it installed to the front of the frame and how far on the frame does it go back towards the rear spring?
Thanks in advance to all that provide to me this help. California Charlie

Tom Wesenberg · 06-21-2017, 08:04 PM

The felt gets tucked into the narrow space at the bottom of the kingpin, so it is between the kingpin and backing plate ledge.

California Charlie · 06-21-2017, 10:44 PM

Thanks Tom,

One other brake question regarding my restoration effort.

The 15degree positioning of the brake lever adjustment. Is that adjustment the full travel of the brake lever forward to a stopping position, or like I have what appears to be looking like 15degrees before the lever reaches the full travel of the lever forward? I already have 2 cup shims installed on the brake wedge to get the operating pin to this point of my adjustment.

I'm just concerned that I may have some kind of component wear which allows my actuating level to travel more forward than the 15degrees, or if this is commonly found when making this adjustment. The instruction manuals don't tell about this situation. It's hard for me to tell if the 15 degrees is at the full travel of the lever or slightly before it.

Floats · 06-21-2017, 11:40 PM

Charlie,
From the way the front wheels and brakes are set up, your maximum leaverage is from the 10 O'clock to 2 O'clock position, or visa versa. So therefore, you want to start your pull from 10 or 2 O'clock. There is no sence in starting the arch at say 4 O'clock, because the brake rods can not pull vertical. Starting from 2 to 10 will give max movement and leaverage.
The 10 and 2 O'clock positions equates to the brake leavers leaning roughly 15 degrees forward.
Regards
Chris

hardtimes · 06-22-2017, 01:36 AM

Quote:

Originally Posted by California Charlie

Hi Guys,

Two questions regarding my current Model A restoration work.
1. The Front Brake Assembly. Where does the felt washer on the 7 1/4" long Operating Pin go? The Front Brake breakdown diagram I have looks like it fits (sandwiched) above the Operating Wedge and bottom part of the backing plate. I thought that to be where it fits in the assembly, but somewhere along the line I either heard or read something about it being located/installed within the top part of King Pin. Which is correct?
2. The frame webbing. How far is it installed to the front of the frame and how far on the frame does it go back towards the rear spring?
Thanks in advance to all that provide to me this help. California Charlie

Frame webbing = 100 in long. Start at front of frame first (fender)hole

Tom Wesenberg · 06-22-2017, 06:58 AM

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Don't worry about the lever being able to move forward more than 15* with the brake rod disconnected. You want to lightly move the lever towards the rear of the car with your finger until the play is taken up. At this point it should be close to 15*, so then you adjust the rod so the pin will slip through the lined up holes.

06-21-2017, 07:47 PM	#1
California Charlie Senior Member Join Date: May 2010 Posts: 157	Front brake and frame webbing questions Hi Guys, Two questions regarding my current Model A restoration work. 1. The Front Brake Assembly. Where does the felt washer on the 7 1/4" long Operating Pin go? The Front Brake breakdown diagram I have looks like it fits (sandwiched) above the Operating Wedge and bottom part of the backing plate. I thought that to be where it fits in the assembly, but somewhere along the line I either heard or read something about it being located/installed within the top part of King Pin. Which is correct? 2. The frame webbing. How far is it installed to the front of the frame and how far on the frame does it go back towards the rear spring? Thanks in advance to all that provide to me this help. California Charlie

06-21-2017, 08:04 PM	#2
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Front brake and frame webbing questions The felt gets tucked into the narrow space at the bottom of the kingpin, so it is between the kingpin and backing plate ledge.

06-21-2017, 10:44 PM	#3
California Charlie Senior Member Join Date: May 2010 Posts: 157	Re: Front brake and frame webbing questions Thanks Tom, One other brake question regarding my restoration effort. The 15degree positioning of the brake lever adjustment. Is that adjustment the full travel of the brake lever forward to a stopping position, or like I have what appears to be looking like 15degrees before the lever reaches the full travel of the lever forward? I already have 2 cup shims installed on the brake wedge to get the operating pin to this point of my adjustment. I'm just concerned that I may have some kind of component wear which allows my actuating level to travel more forward than the 15degrees, or if this is commonly found when making this adjustment. The instruction manuals don't tell about this situation. It's hard for me to tell if the 15 degrees is at the full travel of the lever or slightly before it.

06-21-2017, 11:40 PM	#4
Floats Senior Member Join Date: Dec 2013 Location: Mossel Bay, about 300km from Cape Town Posts: 530	Re: Front brake and frame webbing questions Charlie, From the way the front wheels and brakes are set up, your maximum leaverage is from the 10 O'clock to 2 O'clock position, or visa versa. So therefore, you want to start your pull from 10 or 2 O'clock. There is no sence in starting the arch at say 4 O'clock, because the brake rods can not pull vertical. Starting from 2 to 10 will give max movement and leaverage. The 10 and 2 O'clock positions equates to the brake leavers leaning roughly 15 degrees forward. Regards Chris

06-22-2017, 06:58 AM	#6
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Front brake and frame webbing questions Sponsored Links (Register now to hide all advertisements) Don't worry about the lever being able to move forward more than 15* with the brake rod disconnected. You want to lightly move the lever towards the rear of the car with your finger until the play is taken up. At this point it should be close to 15*, so then you adjust the rod so the pin will slip through the lined up holes.