by dvonk » Sat Jan 02, 2010 10:49 pm
your carburetor looks like it may be a 4 barrel Rochester. i do not have one, so i am going by the pictures in my Chassis Service Manual. there seems to be a slight discrepancy (maybe just a different model), so maybe someone else who has one can verify this for us?
if i am reading the Service Manual correctly, the smaller tube you pointed out is a vacuum line that runs to the intake manifold. the larger tube is a heat pipe that is connected to the exhaust manifold. the round unit they are connected to is an automatic choke.
the switch with wires to it is the carburetor starter switch. i have included a diagram from the Service Manual that shows how it works. the position of the ball is what causes the starter switch to be activated. with the engine running, the ball is lifted out of its resting spot and can no longer activate the starter.
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1958 MOD. 43
STYLE 58-4439
BODY No. BK2451
TRIM 412
PAINT CG
ACC. E (also BFG)