Help Me With 4k Vacuum Diagram

[Bostup]

Hello I’m From Thailand :)

I have problems with 4K engine 4Speed M/T

Carburetor of this engine was not connect to vacuum hose in standard [some tube are plugged] :P and this carburetor work with first butterfly only second butterfly is not work because it was locked and my engine very very eat fuel [8Km./Litres] :D

 

I want to connect vacuum hose in to standard please help me for picture or vacuum hose diagram :dance:

And one problem, Main jet Number???? Second jet Number???? :dance: I don’t know tell me please

 

Ps. Thai people are not strong in English language :jamie:

[rob83ke70]

Hello I’m From Thailand :)

I have problems with 4K engine 4Speed M/T

Carburetor of this engine was not connect to vacuum hose in standard [some tube are plugged] :P and this carburetor work with first butterfly only second butterfly is not work because it was locked and my engine very very eat fuel [8Km./Litres] :D

 

I want to connect vacuum hose in to standard please help me for picture or vacuum hose diagram :dance:

And one problem, Main jet Number???? Second jet Number???? :jamie: I don’t know tell me please

 

Ok, i'm going to simplify this a whole lot.

 

You should pull the carburettor off the car, clean it thoroughly, and put a rebuild kit through it, when it is off the car you should make sure that the vacuum secondary butterfly is free to open. if there is ANY play in the throttle shafts you will need to get them rebushed. when it is all clean and back together, hook the vacuum hoses up as follows.

 

PORTED vacuum goes to the distributor vacuum advance diaphragm.

PORTED vacuum also goes to the vacuum secondary diaphragm.

 

MANIFOLD vacuum goes to the hot idle compensator (if fitted), this is a bimetallic spring that is in your carburettor somewhere on the side, when your engine overheats it will introduce air into the manifold thus lifting engine rpm slightly and spinning the cooling fan a bit faster allowing your engine to cool if you spend a long time in traffic on a hot day.

 

MANIFOLD vacuum (on a big hose) goes to the PCV valve.

MANIFOLD vacuum (on a big hose again) goes to the brake booster.

these two come out of the inlet manifold not the carburettor.

 

I wouldn't worry about anything else. Remove what you can, and plug anything that is not connected. Make it all look neat, make sure there are no cracked or hardened hoses leaking. Make sure your manifold bolts are all present and are tight. make sure your carburettor bolts are tight. Basically make sure that you have no manifold vacuum leaks anywhere at all.

 

Unless the jets have been pulled out and changed I would not worry about it, the smaller numbers always go on the primary side. I can't see why anyone would want to change stock jetting in a stock carburettor though.

 

Robert.

[DouggehKE30]

This is a link to some pictures in the FAQ. this might help :)

>>LINK<<