Rpo 684 1961
I'm putting my car back together . I haven't been able to find a brake adjusting procedure for the HD brake set up using the eccentric pins. Does anyone have a procedure or know a procedure. I'm not sure if I should set contact with the eccentrics first or use star wheel to do normal adjustment and then use eccentric. Jerry
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Re: Rpo 684 1961
The service procedure you are looking for can be found on page 31 of the 1957 supplemental Corvette chassis booklet. It is "considered a major brake adjustment and is called for when an unequal or severe braking condition is present". It would be performed before what you refer to as star wheel adjustment. The procedure is as follows:
1. Loosen anchor pin just enough so that pin can be shifted in anchor plate.
CAUTION: Do not loosen pin excessively, as the pin may then tilt instead of shift.
2. Turn brake adjusting screw to expand brake shoes until a heavy drag is felt on the drum.
3. Tap anchor pin and flange plate to allow shoes to center in drum. If the drag or the drum decreases, expand the shoes a few notches and repeat the tapping operation. When the drag remains constant, tighten the anchor pin nut to 60-80 ft. lbs.
4. Adjust brake shoes to a light drag and back off 27-32 notches. -
Re: Rpo 684 1961
Jerry, not to be picky, but if it is a '61, wouldn't it be RPO687?Comment
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Re: Rpo 684 1961
As usual Mike your are correct. JerryComment
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Re: Rpo 684 1961
Thank you David, just what i needed. JerryComment
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Re: Rpo 684 1961
FYI
The major brake adjustment procedure can also be found in the 1961 Chevrolet Passenger car service manual.
DennisComment
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