Hey installed a stock carb today and followed a diagram pretty well, but I have a couple im sort of lost on, If you could help me out it'd be great!



First I do not know where these two go??




Second



Third ( Also am I missing something off this carb in the yellow circle??? )


Fourth ( Yellow circle that one is capped do i need it? )

 

this might help.

https://www.yotatech.com/forums/f114...ly-22r-205845/

https://www.yotatech.com/forums/f116...-lines-263333/

 

#1-the blue plasic- charcoal cannisters...forget em
#2- wouldnt worry bout it
#3- shouldnt be a vacuum line, should have small cut out like place for flathead screwdriver/ also dont think anythings missing
#3b- lower larger opening goes to a hose leading to some type of smog valve inside of your air cleaner box, i have mine capped off due to weber carb
#4- yes they were both capped off on my stack carb as well

If you do not have a line hooked up it MUST be capped off just to be safe. I got a friend who de smogged his truck, installed a new weber n wha not and now he has a vacuum leak from hell and cant figure out what he can and cannot cap off.

 

Well, first of all, even though you state that you are in California, looking at your first pic, your vehicle does not look to be a California emissions engine.

So...

As was stated, that's part of your EVAP system. Once the computer senses a specific temperature via one of the coolant sensors, the computer triggers that switch to draw out the stored evaporated fuel in the charcoal canister. The charcoal canister vacuum lines are plumbed in with the intake manifold.



That is part of the engine's Hot Air Intake (HAI). It aids in the driveability of a cold engine.

There's a vacuum hose that runs from it to the underside of the air cleaner. In the air cleaner there's a thermo-switch that senses the intake air temperature and controls the bellow door within the round HAI to divert hot air collected from the exhaust manifold shroud.



The port in the top circle should be plugged. I don't have that port & mines a Cali truck, albeit an '87. I'm not entirely sure what that port is for.

Middle yellow circle: that's just the casting in the carburetor for the older Aisan carbs. The early 80's 22R carbs used a Hot Idle Compensator (HIC) to aid in hot engine restarts. Toyota did away with it, but they did not change the casting. They did plug the internal vacuum passages, though.

Bottom circle pic:that where the PCV rubber hose connects to. The PCV is on top of the valve cover.


Those two ports are used for California emissions. The Electronic Bleed Control Valve (EBCV) vacuum lines are connected to those two carburetor ports to add air when the computer detects a rich mixture via the oxygen sensor.


Wait a second....do I see an oxygen sensor in picture 2?

 

I'm fairly new to yotas and I mean you no disrespect slo-mo. but are you sure carburated engines would use an o2 sensor? I've not found one on my 84.

 

Only the California (50-state) model uses an oxygen sensor. Neither the Ferderal (49-state) or Canadian versions use the o2 sensor. The California-spec carburetors are a feed-back version of a carburetor.

It was because California was/is more strict in their emissions control.

Had to make a correction when I said 48-state. haha

 

thanks for the info slo-mo

 

Well I messed up my first post I made this morning. I thought I clicked "quote", but I click "edit" instead.

So...



I found out that port does go to the plastic T-conector, which goes to the BVSV.