BRAKE CHANGES Series 40 The 1953 Series 40 will have the same brake specifications and dimensions as the 1952 Series 40. However, all series are now equipped with the new orange-colored brake shoe lining. This lining was started in production on all late 1952 production. Tests have proven this lining to be the best available. [...]
BRAKE DRUM SEALING TAPE Further investigation and testing by the Engineering Department has revealed a material, for sealing between the brake drum and backing plate, that is considerably more durable than the felt material formerly recommended. The new material is Tadpole Gasketing Tape, Style No. 123, Size #1, consisting of a center core of soft [...]
1953 POWER BRAKE UNIT REWORK SPECIAL SERVICE LETTER NO. 137 (REPRINT) Several very important improvements have been made in the 1954 Power Brake cylinder assemblies which we wish to incorporate in all 1953 Power Brake equipped cars, regardless of mileage, age or owner ship on a campaign basis. To incorporate these changes as quickly as [...]
PEDAL RETURN SPRING CAMPAIGN 1957 Power Brake Following is a reprint of Special Service Letter - Dealer No. 211, dated May 8, 1957: In Special Service Letter - Dealer No. 209, dated April 26th, it was announced that the torsional power brake pedal return spring was being replaced by the extension type return spring. On [...]
We have recently checked several cases where a "crunching" noise occurs when brakes are applied at low car speeds. Although this noise can be caused by several points of movement in the 1950 Buick brake assembly, it appears that a major portion originates between the 1950 Buick brake shoe hold-down spring retainers and the brake shoe [...]