Hello all have a problem with my bellcrank on driver side of motor under the carb were allthe throttle linkage bolts to the side of the block.The stud that threads into the block does it have a lock washer that tightens to the block and the shoulder of the stud or is just locktited in the block also does anyone have a good picture of this assembley looked in the service booh and factory manual but coudnt find a good picture mine apartenly unscrewed on a sunday drive and it unscrewed then I WAS SCREWED LOL LOL THANK YOU IN ADVANCED!!!!!!!!!!!! PA outlaw
As long as it stays tight in the block, how it does so is a moot point. I'd suggest a good thread cleanup and a healthy dose of red Loctite. Add a lockwasher if you believe in using a belt AND suspenders.
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Tim, I have a 55.2 Truck Shop manual that has a diagram of the throttle and shift linkage. I can take a picture of it and post it if you (or jrhackett) need it.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
Possibly some useful info to answer your question.
This page from the 1929-54 Chevy Master Parts Catalog lists the "stud", "bushing" and "2 washers" (Parts Group 3.582) for the engine mounted accelerator bell crank pivot. All those are 1954 Commercial Truck with A.T. (Hydra-Matic) specific parts.
A snapshot below from the 1947-54 Reproduction FAM (Sect 7 Sheet 3.01) shows in "VIEW A" that those washers go on either side of the bell crank. Haven't found anything to indicate that the stud used a washer to secure to the engine block itself.
Also attached is a better picture from the 1954 Shop Manual (page 7-41) of the Hydra-Matic accelerator & transmission controls in case it could help out in anyway.
Let us know how your "fix" turns out.
Dan
Last edited by Gdads51; 10/04/20232:20 PM. Reason: spelling
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
The stud for the bellcrank does not get a washer. Just torqued into place. That it appears to be backing out suggests some binding. How is the bellcrank attached to the stud? It should be by a wire clip. Is the stud and bellcrank lubricated? How about the thrpottle linkage and kick down linkage where they attach to the bell crank? Can you post a photo?
FYI, Dan's figure from the '54 shop manual looks identical to the one I found in the 55.2 shop manual.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
