Thursday, September 25, 2014

Sc/Rambler Brake Help

We had a recent question about the Brake Booster for the Sc/R and have some very good info donated by our panel of experts . Thanks to James McKee and Dan Curtis for these tips

The question From Larry:
 Hello, do you have a pictures of the brake booster and the mounting bracket. I am not sure I have correct one. The brake pedal sits about 3 inches of the floor and does not have but little brakes. I ordered a new master from ADP but the booster does not act like its working. Also there are no spacers on the bracket is this correct? Thank You, Larry Allen

From Dan here:
The pivot bolt is frozen inside the shaft. We see it all the time at the
restoration shop. Here is a picture of what is frozen. It is the square
headed bolt that goes through the hollow horizontal shaft.


 photo IMAG1165_zps0187f080.jpg From Jim: Hi Bob, Picture of a SC/Rambler booster attached. Notice the brake pedal to booster arm is straight from the brake pedal to the booster, Unlike the dog-leg arm on AMXs and Javelins. The SC/Rambler brake booster bracketry uses no spacers on the firewall. The largest brake booster rebuilder I know of is Cardone. They tell me there are some internal adjustments that effect the amount of brake boost transferred to the brake master cylinder. I use Kennedy American to rebuild all the brake boosters I use on my cars and customer’s cars, because he asks what car the brake booster came from and has your brake booster rebuilt and returns it. I am most satisfied with all the units he has done for me! I put a grease fitting in the bottom of the tube where the bracket pivots on the 1/2” diameter shaft with the square end. A shot of grease every couple of years keeps the bracket from freezing to the shaft and wallowing out the bracket with the square hole supposed to keep the shaft from turning. SC/Rambler booster check valves go straight into the brake booster housing. The master cylinder needs to on the brake booster with the hardware loose on the booster master cylinder studs for installation in SC/Ramblers, because there is no room to get the nut nearest the fender on the stud once the booster is installed. Its just way easier to take the master cylinder loosely attached to the booster and bracket assembly to get the master cylinder it in or out. With the booster out of the car its an ideal time to check out your clutch bellcrank bushings and boots, because of how much easier it is to change them if necessary. Regards, Jim Sc/Rambler Brake Booster photo DSCF0340_zps3f2f3871.jpeg

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