KA24DE intake manifold vacuum coolant hose location diagram

[jt1583]

I took some pictures of the vacuum/coolant connections on my intake manifold and block during my rebuild and tried ID'ing them best I could. If you guys can perhaps look them over for errors.

I'd also like to discuss what can be obsoleted for best performance/troubleshooting (less is better) and possibly add that to this thread as well. I will comment what I think is necessary to not connect when going for the slimmest intake install under each picture, please leave feedback as well.


manifold 1
1 - vacuum - IACV; connects to intake
2 - vacuum (advise)
3 - PCV - connects to #6 in pic. 'block connections'
4 - coolant - throttle?
5 - coolant - throttle?
6 - coolant - connects to radiator top
7 - coolant - goes to throttle body
8 - coolant - coolant - connects to #3 in pic. 'block connections'
9 - coolant - temperature sensor

I am not sure where connection 2 goes, I think I can block this. 1 and 3 are IACV and PCV and must remain. I believe 4 and 5 is a straight pass through for throttle body coolant and I will leave these alone (possibly block to keep debris out). 6 will stay for coolant, 7 is throttle body and will be covered, and 8 will stay as well. 9 will have a sensor put in place.


block connections
1 - coolant - connects to heater core outlet
2 - coolant - to radiator bottom
3 - coolant - connects to #8 in pic. 'manifold 1'
4 - oil - pressure sensor
5 - knock sensor
6 - PCV - connects to #3 in pic. 'manifold 1'

1,2 and 3 will all remain as they are part of engine cooling / passenger heating. As well, 4, 5 and 6 are essential.


manifold 2
1 - IACV pipe
2 - vacuum - FPR
3 - vacuum - brake booster

Must keep all.


throttle
1 - coolant.
2 - coolant.

Will cover both connections to prevent debris from getting in.



If all this is correct, it seems this will be very simple. I will have;
-an IACV line from manifold to intake
-PCV line from manifold to block
-2 radiator hoses
-coolant hose from manifold to block
-coolant hose from block to heater (2)

Does this all sound about right?

[Tearlessj]

Badass post man, got a lot of questions answered for me. Still want to know what 2 is though. Also what is this big tube on the bottom right go in this photo? (The one with the 90 degree bend.)

[Tantwoforty]

this woulda been nice when i was rebuilding my ka... i vote for a little cleaning and redoing and then a sticky!

[project-D180]

good write up

[vincent1190]

i dont see any pics at all am i missing something?

[holiday]

Yeah i had the same problem. Try this link it should help
KA24DE intake manifold vacuum coolant hose location diagram : KA24E / KA24DE Forum