Throttle Body Hoses

[Larawin 0]

Not sure if this is the correct place for this post, just wondering what the 2 larger outlets are for on the underneath of the throttle body. One is for the SAD but what is the other for?

[welshpug 1,662]

none on the throttle body are for the sad.

 

two ports on the bottom are coolant, smaller one is vacuum. top is a breather.

[Larawin 0]

My mistake, the piece that connects the airflow meter has a outlet for the SAD. One of the hoses from the throttle body goes on to the engine near the dizzy, where is the other one?

Edited April 17, 2016 by Larawin

[pug_ham 244 3 Cars]

The pipe which goes from the throttle body to near the dizzy could be one of two.

 

One goes to the vacuum advance capsule on the dizzy & the other is a coolant pipe that goes to the T piece on the thermostat housing.

 

The other pipe one the piece from the AFM to the throttle body goes to the oil filler cap.

 

g

[Anthony 1,003]

Some (later?) throttle bodies have an additional unused one on the underside as well that's normally blanked off.

 

Generally speaking though it's as Graham mentioned above:

 

Two larger outlets on the underside in a V-shape - to cooling system, one to header tank and one to thermostat housing

Small outlet on underside - to dizzy vacuum advance

Larger outlet on the top - breather to oil filler cap