Re: Mike's 53 Clipper
Posted by Tobs On 2017/5/22 5:44:15
I'm still a little confused about the choke tube. There is a piston that is exposed to manifold vacuum, which pulls the choke plate open. The bithermal spring pulls the choke plate closed when cold and relaxes as it warms up. The choke tube pulls heated fresh air from the exhaust manifold.
When the engine is warmed up, and the choke is fully open, should the piston be down, and then that stops the airflow through the choke to the intake plenum? Or does the choke mechanism always bleed some air into the intake?
Does the end of the choke tube that is buried in the exhaust manifold have a certain size orifice to limit the air bled through the choke tube?
My choke tube was broken off at the ex manifold, so I had jammed the new tube in, but it opened up. Is it recommended to JB weld the choke tube back to the intake manifold so there are no more external leaks?
Thanks all, still learning!
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When the engine is warmed up, and the choke is fully open, should the piston be down, and then that stops the airflow through the choke to the intake plenum? Or does the choke mechanism always bleed some air into the intake?
Does the end of the choke tube that is buried in the exhaust manifold have a certain size orifice to limit the air bled through the choke tube?
My choke tube was broken off at the ex manifold, so I had jammed the new tube in, but it opened up. Is it recommended to JB weld the choke tube back to the intake manifold so there are no more external leaks?
Thanks all, still learning!
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