Sisson Choke questions

[Lehman57]

I have a Sisson choke on a 1943 Chrysler engine in a trailer pump built for Civilian Denfense. Any gasket was gone when I got it; I understand the gasket has a solid center, but there are at least 3 questions.

--The ears with the bolt holes were deformed (by rust packout since the bolts were broken??) Are there any ideas on how to get the bottom flat again?

--What should the resistance of the electromagnet be? I measured around 0 to 2 ohms, which seems more like a short, meaning a ruined magnet or bad insulation.

--How does the choke disassemble in case I need to?

Thanks.

[Joe Flanagan]

Check this thread:

http://www430.pair.com/p15d24/mopar_forum/showthread.php?t=28201&highlight=sisson

The mechanism inside comes apart pretty easily. Just undo the bolt/nut holding the arm that connects to the carb linkage and slide the shaft out. There's another smaller shaft up higher that needs to come out, too. To separate the electromagnet and its housing from the body of the choke, there are three tabs that have to be bent back. I have two Sisson chokes that fry the wire every time I send current through and one I have yet to try.