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View Full Version : Heat riser control.


rubberburner
11-25-2003, 04:29 PM
Which thermovalve is associated with the heat riser? I want to put mine back on, but I ripped out all the vacuum lines, and don't know which thermovalve I should be using.
dXsquared
11-25-2003, 04:53 PM
lol.. i just made a HOT AIR intake for my carb.. its too damn cold up here in canada to run no airbox with a preheater... my carb always ice's up

Travis
rubberburner
11-27-2003, 07:11 PM
So no one has any idea which valve it is? Guess I'll have to suck on a few vacuum lines and find out.
A20A1
11-28-2003, 02:16 AM
if you look on the vacuum line removal how-to and on the sticker that is on the underside of your hood you can get a diagram for how the thermovalves should be hooked up.
DanG86LX
11-30-2003, 01:48 PM
What u're after:
1. "Heat riser" which is coolant passages at the base of carb.
2. "Intake air control" door + diaphragm which controls cold/hot air in the snorkel, before air filter.
rubberburner
11-30-2003, 06:29 PM
Sorry, #2. I wanna hook up the hot air control again. I don't have one of those stickers under my hood. Anyone have a big picture of one? (for an 86 of course)
DanG86LX
12-01-2003, 02:06 PM
For #2, download Paul's manual chap. 11 page 5..7 and look for KX or KQ diagram (86 BS engine only).
The "Intake air control" is quite simple system:

[intake manifold vacuum]->#8->[3ways check valve]->diaphragm
[3ways check valve]->Thermo Switch

The Thermo Switch is inside black air box passenger side, it air bleeds the system above ~25*C.
All vacuum lines are routed under air box.