Classic/Antique Car Repair: model A brakes, emergency brake lever, rear brake lever


Question
I'm rebuilding rear brakes from a box.  Does brake rod push or pull the rear lever? how do the emerg. brake springs atach.  Thanks  tim

Answer
You are tackling a big job.  Not hard, but a lot of work.  Better get the Model A mechanic's hand book. by les andrews.  Great book that we all have and use.  I used mine this am.  About $35 from MARC or any of the parts suppliers.  It will tell you what you need to know.  The rods always pull, never push.  The emergency brake shoe springs go from the outboard holes to an inboard hole to pull the shoe toward the center.  They look a bit out of place, but they go from the hole in the triangle tab on the shoe to a large hole near by.  You will figure it out.  If the rear cam bushings are worn, you should replace them along with the emergency brake lever bushings.  This is tough, but important.  You will have to grind off the pin to get the shaft out.  Use a new pin when you rebuild them.  
Good luck and stick with it.  I will attach a note I wrote some time ago.
jack

I got the Model A, now what do I do????



Depending upon the condition, this could be a quick check, or the start of a long process.  Many cars are restored cosmetically and the mechanicals are neglected.  You can take care of the cosmetics; I will help you with the mechanicals.



The engine is the engine, and its condition is obvious.  It either runs or it doesn’t.  I won’t go into that.  I assume you bought an A that will run.



First, you have to make sure it is safe.  It has to stop in a decent fashion, and the steering must be sound.  Don’t drive it over 10 mph if the tires are not good.  If in doubt, ask someone who knows tires.

Brakes:

(For general information, the Model A is designed to be a rear skid system.  Modern cars are designed to be front skid.  The rear brakes hold first; then the front brakes contribute to the deceleration.)

Check for slop in the rear brake lever bushing.  This is the arm that the rod pulls on when you depress the brake pedal.  It is located on the rear brake backing plate.  Try to shake it and move it laterally.  If it is loose, then you have a very big job ahead of you.  You need to install new bushings.  Not a difficult job, but a lot of hard work.  At the same time you are into the rear brake, replace the emergency brake lever bushing.  It is not lubed by design, and is probably worn out.  Fixing the bushing problem may be all you have to do to the rear brakes.  If it stops after this, leave them alone.  If it still does not stop well, then do the complete brake job.  Lining, tracks, cam, and rollers, and turned drums.

Front brakes:  Clean things up and make sure everything moves as it should and returns under the force of the shoe springs.  If the brake lever is not positioned with a slight tilt forward, then add a “pill” to the wedge to get the lever in the tilted position.  That may be all you need to do.

Adjustment:  This is a tough job and you better get someone who knows how to adjust them to do it for you.



Steering:  Reach down under the rear of the left front fender and grab the pitman arm and pull it toward you and push it away from you.  If it moves at all, you will have to put new bushings in for the sector shaft.  It is a big job getting the steering gear out of the car.  You will need help to do this, put in the new bushings and to adjust the gear.  Find a club member who knows this area of the “A”.  

Check the pinch-bolt that holds the pitman arm on the sector shaft.  There can be no looseness in this joint.



Tie rod and drag link:  Take a close look at the ends of the tie rod and drag link.  They must be firmly connected to the balls.



Lay under the car and look at all of the wires to make sure none are rubbing on anything that might damage the insulation.  Make sure the insulation is in good shape and not worn off.  Look very closely at the battery cable from the negative post to the starter post.  It routes near the clutch and brake pedal mechanisms.  Have someone push on both pedals to make sure they don’t hit the battery cable.  No movable member can touch the battery cable.  If you have a problem in this area, you can burn you car and house up.

Tim, I have several papers I have written that my help you with your car.  Send me you e mail address and I will send them to you.
jack
jackbahmLLL@yahoo.com