'41 Special Stromberg Carb Accel Pump Situation

[Malo48]

I'm rebuilding the primary Stromberg on my Special and ran into a situation with the accelerator pump.  The old pump, at left, is significantly different that the one included in the kit (which did not come with a spring).  Checked to see if the spring could just be swapped, but it does not fit well on the new pump, and the retainer also does not really engage on the new shaft. 
Note that the old pump shaft appeared to have been brazed/ground, perhaps to use an even older pump shaft to make that one work.  The good weather is coming so I'm anxious to get it on the road & not hung up in the garage like it was most of last year.  Thanks in advance for your advice!
Mike

[carbking]

The pump on the left is a modern (1964 or newer) Rochester pump, not a Stromberg. Obviously, the work of Dr. Goodpliers (the evil twin of Mr. Goodwrench).

 

The pump on the right appears to be one of many different Stromberg pumps.

 

Jon

[Malo48]

38 minutes ago, carbking said:

The pump on the left is a modern (1964 or newer) Rochester pump, not a Stromberg. Obviously, the work of Dr. Goodpliers (the evil twin of Mr. Goodwrench).

 

The pump on the right appears to be one of many different Stromberg pumps.

 

Jon

Oh, lovely.  So, I guess the search is on for a correct spring/retainer.  
Thanks for the info Jon!

-Mike

[carbking]

More good news, is that your power valve probably did not function with the Rochester pump, and should with the correct pump.

 

Jon.