Re: Bushings for Brake and Clutch pedals on 23rd series
Posted by HH56 On 2019/7/9 14:35:32
Parts says the Clippers and models thru 50 have the same support arrangement and on my 47 there are two bushings in each pedal arm which are supported by a single shaft. I could not find a commercial match for the bushings when I did mine but possibly one of the vendors can if they have a NOS or good pedal and can measure needs. I can say it looks like a real pain to change them and if there are no readily available sizes the pedal bores might need machining to place a standard size bushing in. Shaft diameter is 7/8 and as I recall the bore side was a fraction or decimal not offered in the readily available standard bushings.
What I found on my car was you could grab the clutch pedal at the top and move it side to side a good half inch or more. Taking things apart I found the bushings were passable with only minimal wear but the shaft had an extreme amount of wear on the clutch pedal side because of lack of lube. There is a single zerk on the end of the shaft at the brake pedal side. My assumption is infrequent lubes and maybe the person doing the lube saw grease squeezing out from the brake pedal and stopped the lube before any was able to reach the clutch end and it was working almost dry. Because I felt the bushings were still usable I found a hardened shaft at McMaster-Carr and with the use of a cutoff wheel and a grinder was able to cut to length and form the grooves and D shape on the end that locks in the frame. Because of the hardening I could not drill the shaft for the lube path so opted for a zerk fitting opening in a space between the bushings in each of the pedals instead.
You might need to take yours apart to find the actual problem and if your bushings are bad and the cause of any slop get an oversize shaft. At one time there was an oversize shaft kit an individual made to take care of the wear but that source apparently has passed away. A poster awhile back with a similar need said that Ron Carpenter in Alamo, CA was able to machine him an oversize shaft so that or a local machinist might be an easier option than changing bushings.
Attach file:
(45.23 KB)
(178.15 KB)
What I found on my car was you could grab the clutch pedal at the top and move it side to side a good half inch or more. Taking things apart I found the bushings were passable with only minimal wear but the shaft had an extreme amount of wear on the clutch pedal side because of lack of lube. There is a single zerk on the end of the shaft at the brake pedal side. My assumption is infrequent lubes and maybe the person doing the lube saw grease squeezing out from the brake pedal and stopped the lube before any was able to reach the clutch end and it was working almost dry. Because I felt the bushings were still usable I found a hardened shaft at McMaster-Carr and with the use of a cutoff wheel and a grinder was able to cut to length and form the grooves and D shape on the end that locks in the frame. Because of the hardening I could not drill the shaft for the lube path so opted for a zerk fitting opening in a space between the bushings in each of the pedals instead.
You might need to take yours apart to find the actual problem and if your bushings are bad and the cause of any slop get an oversize shaft. At one time there was an oversize shaft kit an individual made to take care of the wear but that source apparently has passed away. A poster awhile back with a similar need said that Ron Carpenter in Alamo, CA was able to machine him an oversize shaft so that or a local machinist might be an easier option than changing bushings.
Attach file:
(45.23 KB)
(178.15 KB)
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=213211