Carb. choke breaker question
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- Top Notch Member
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- My tercel:: 1983 2wd tercel hatch back ,1986 SR5
Carb. choke breaker question
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?
- Mark
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- My tercel:: 1984 Automatic, 1981 sedan
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Re: Carb. choke breaker question
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?
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- Top Notch Member
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- Joined: Mon Jun 20, 2011 12:24 pm
- My tercel:: 1983 2wd tercel hatch back ,1986 SR5
Re: Carb. choke breaker question
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.
- irowiki
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Re: Carb. choke breaker question
It's possible it was working, it allows very little vacuum to pass through.
Former Tercel Enthusiast (not a practical family car anymore but they still have a place in my heart)
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87 Corolla FX16, 105k
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Site administrator, if something is broken, PM me!
87 Corolla FX16, 105k
94 Jamboree RV (Ford E-350), 90k
95 Camry Wagon, 170k
97 4runner, 275k
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- Top Notch Member
- Posts: 173
- Joined: Mon Jun 20, 2011 12:24 pm
- My tercel:: 1983 2wd tercel hatch back ,1986 SR5
Re: Carb. choke breaker question
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?