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pimp86LX
08-06-2003, 03:51 PM
Were the coolant comes from the top of the rad, before it gets to the block it passes by these two vacum controlled valves or someting. Theyre right behind the distributor but I don't know what theyre called for the love 'a' me. Well both have 2 vacum lines on them and one vacum line is broken off from the first valve.

Any ideas what this is or what effects a broken line will have on the car?


HELP!

-Paul
NXRacer
08-06-2003, 03:59 PM
paul (aerodeck) has the full shop manual on his website. That may be able to help you out. (i dont know the web address off the top of my head).

*edit* here ya go:

http://www.pauldesign.ru/honda/shopmanual.html
shepherd79
08-06-2003, 04:05 PM
don't download paul's shop manual. Eropean cars don't have emissions. Eropean 3G accords have half of the vacuum lines.
pimp86LX
08-06-2003, 04:07 PM
hmm well i have the haynes and i found the diagram of the thermostat housing and stuff, but it doesn't show the vacum lines or those valves......nurtz!
pimp86LX
08-06-2003, 04:41 PM
ok so its a thermovalve. But what does it control......
A20A1
08-07-2003, 04:16 PM
If it has #25 vacuum line on it then it's for the distributor advance... if it's not #25 then it was for the vacuum secondary diaphragm.
pimp86LX
08-07-2003, 06:33 PM
its #16. both lines going to and from the thermovalve is labeled #16
DanG86LX
08-19-2003, 08:44 PM
that thermovalve controls EGR valve! ..on some older 86 like mine.
pimp86LX
08-19-2003, 08:53 PM
EGR ehh.......hmm could that explain why my car wont idle down unless i 'kick it' ?
fuzzy audio
08-20-2003, 07:55 AM
Originally posted by shepherd79
don't download paul's shop manual. Eropean cars don't have emissions. Eropean 3G accords have half of the vacuum lines.

I do belive that is the US shop manual. It does not seem to reference any euro models or such. Like the B20.
DanG86LX
08-20-2003, 12:36 PM
"...could that explain why my car wont idle down unless i 'kick it' ?"

Nope, that's "Fast Idle Unloader" job and thermovalve A which bring the idle down with car unattended. .. but what's wrong with kicking it?:lol
pimp86LX
08-20-2003, 01:08 PM
well nothing really. but in the winter it would be nice

so...i have 2 thermovalves in the thermostat housing....wich is wich?
DanG86LX
08-20-2003, 07:56 PM
"so...i have 2 thermovalves in the thermostat housing"

Those are NOT the ones.
I assume ur car was Japan made like mine -86. U have to look at intake manifold to firewall side, there are 2 thermovalves there:
- one with 3 prongs (yellow) with vacuum lines:
#17 sideways, to air box (air bleed)
#25 sideways, to distributer - outer
#19 on top, to outer Fast Idle Unloader
- one with 2 prongs (blue)
#17 sideways outer, to air box (air bleed)
#18 sideways inner, to inner Fast Idle Unloader and outer choke puller.

Blue Tvalve bleeds #18 below 15*C
Vacuum source on #18 comes from Choke Puller through carb internal passage - intake.
Yellow Tvalve bleeds #19 below 55*C

For a clear vacuum routing, download Paul's 11 section page 11-6 or 11-7