22re help

[toyota1]

Could sombody with a 22re tell me where the coolant hose on the tstat housing goes? Its a 3/8" line i think.

 

[SFGator]

Straight to the top of the radiator, pretty sure at least I'd have to go outside and look. The diameter is 1 1/2", you sure about the hose?

 

[toyota1]

Straight to the top of the radiator, pretty sure at least I'd have to go outside and look. The diameter is 1 1/2", you sure about the hose?

I mean the smaller line kindof off the side that nasty looking hole in the picture is where the thermostat sits

 

[SFGator]

That might be the one that goes to the side of the air intake, close to ac idle adjustment screw. I just looked at the pic again and I believe that is it.

 

[BrianGreen]

That goes to the IACV on the bottom of the TB. That hose looks kinda like a P.

 

[SFGator]

That goes to the IACV on the bottom of the TB. That hose looks kinda like a P.

Yep, IAC/TB are more accurate names than the Air Intake, thanks for the clarification .

 

[toyota1]

Sweet just wanted to make sure it was t need before i welded it up

 

[BrianGreen]

Unless you are changing over from EFI/carb to propane, you will need it. The IAC valve on the TB must have the coolant running thru it to operate. Otherwise you will be getting too much air thru the TB to run after the engine warms up.

 

[toyota1]

Unless you are changing over from EFI/carb to propane, you will need it. The IAC valve on the TB must have the coolant running thru it to operate. Otherwise you will be getting too much air thru the TB to run after the engine warms up.

im running propane with an efi manifold

 

[BrianGreen]

Gotcha.

Just some tech...

One of the larger ports inside the TB goes into the IACV. When the coolant temp is low, the IACV allows air to bypass the throttle valve. In conjunction with the IACV and the cold start injector, the engine will idle faster until it warms up. When the engine reaches temp, the IACV closes and the computer turns off the cold start injector. If the IACV is not operating properly, the engine wont get enough air or it will get too much air.

 

[toyota1]

Gotcha.

Just some tech...

One of the larger ports inside the TB goes into the IACV. When the coolant temp is low, the IACV allows air to bypass the throttle valve. In conjunction with the IACV and the cold start injector, the engine will idle faster until it warms up. When the engine reaches temp, the IACV closes and the computer turns off the cold start injector. If the IACV is not operating properly, the engine wont get enough air or it will get too much air.

Ive been looking into getting rid of this, all i need is a throttle blade to open and close haha ill have some time tommorow to work on it if i get my other stuff done

 

[BrianGreen]

Before you make any permanent changes (welding that fitting closed), make sure it will run properly. You can bypass the coolant line to the IACV. I cant remember where the other side of that little coolant circuit is. Im wanting to think that it is somewhere near the water pump. Ill look on my truck tonight. If you bypass the IACV, make sure you put a hose from the inlet side to the outlet side of the IACV to avoid a huge vacuum leak.

 

[toyota1]

The iacv fittings are welded up so i should be ok.

 

[BrianGreen]

Gotcha, just trying to help you avoid a huge vac leak.

 

[toyota1]

Gotcha, just trying to help you avoid a huge vac leak.

Thanks for the help, i try avoid early styles of fuel injection so i dont know to much about them. Im trying to make this setup as simple as possible