Here is a pic of the keeper on my truck
...pic...
I would think you can find that clip at a good hardware store or carquest or a napa.


There are some pics in this thread
https://www.stovebolt.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=854121#Post854121

I don't know if it will help because its not a Fenton set up.



Can you post a pic of that side of your engine?

DADS50
YouTube
1950 chevy 3100