Marvel-Schebler Carb Assembly Question

wascator

Member
Hi, I am rebuilding my Ferguson TO-20's carb. How exactly does the choke shaft and plate go? It has to go a certain way in order to let you fit the two screws in the choke plate and get the backfire relief flap oriented the right way; I assume the flap goes to the bottom, but it was in wrong when I found it: flap at the top.
Also you have to orient the shaft spring so that it tends to hold the choke open.
Anyway if you have any advice I could use it; thanks.
 
backfire relief flap?

how about a pass thru valve to let some air IN when you are choking the living daylights out of her!!
 
OK, I got the carb right. I had another almost identical carb adn noticed there is a spring whcih holds the flap on the choke butterfly closed. There was a new one in the kit I bought, so I got it right now. Thanks for the advice!
I admire the durable construction and simple design of these carbs: cast iron and brass, mostly, and though in horrible-looking condition, a simple kit and some cleaning can get them going.
 
yup.. usually rebuildable unless the innards of the casting are physically damaged so that new consumable parts cannot be replaced.
 

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