Carb. choke breaker question

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kitchman
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My tercel:: 1983 2wd tercel hatch back ,1986 SR5

Carb. choke breaker question

Post by kitchman »

Does anyone know what the plastic jet located in line between the vacuum port on the bottom right side of the carb. and the bottom back port of the choke breaker diaphragm is for?
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Mark
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My tercel:: 1984 Automatic, 1981 sedan
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Re: Carb. choke breaker question

Post by Mark »

It's a restriction that creates a delay of maybe 1 second in the vacuum being applied to the choke breaker diaphragm. This allows the choke to be fully closed for about 1 second, allowing a rich mixture for starting. To be honest, I don't know if it would be that big of a deal if it wasn't there at all. Maybe in very cold weather, not having this delay would cause hard starting?
kitchman
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My tercel:: 1983 2wd tercel hatch back ,1986 SR5

Re: Carb. choke breaker question

Post by kitchman »

Thanks for the reply Mark! The Jet that was on there allowed no air at all to pass through, so I eliminated it and ran a continuous section of line between the two points. Just wanted to make sure that I didn't shoot myself in the foot in doing so.
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irowiki
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Re: Carb. choke breaker question

Post by irowiki »

It's possible it was working, it allows very little vacuum to pass through.
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kitchman
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Posts: 173
Joined: Mon Jun 20, 2011 12:24 pm
My tercel:: 1983 2wd tercel hatch back ,1986 SR5

Re: Carb. choke breaker question

Post by kitchman »

It is coincidental you saying this! The other day I found the jet in question and attempted to suck on the vac. line on the carb. side of the jet while holding my finger on the line on the opposite side and of course no suction was observed. Then I tried sucking on the same line this time without blocking the other side and an extremely slight amount of suction was observed. Finding it hard to understand what such a constant, minuscule amount of suction would accomplish?
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