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coily96

az supporter
Joined: Wed May 05, 2010 11:50 am Posts: 823 Location: Beenleigh
Vehicle: Coil Sierra
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 Posted: Thu Sep 27, 2012 6:18 pm |
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screws into thermostat housing/inlet manifold. Two hoses run to carby?
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Bruce

az supporter
Joined: Sun Jun 11, 2006 11:30 pm Posts: 4003 Location: Brisbane
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 Posted: Thu Sep 27, 2012 7:01 pm |
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A/C stuff I think
_________________ [quote="royce"] I wouldnt mind insulating my rear
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BlueSuzy

az supporter
Joined: Sun May 04, 2008 11:30 pm Posts: 9716 Location: NSW
Vehicle: SJ51 LWB, SJ70 SWB
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 Posted: Thu Sep 27, 2012 7:50 pm |
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Baby temp sender. The car that i pulled a/c out of also had this
_________________ BlueSuzy wrote: I'm over the G16b's.
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suzkboy

az supporter
Joined: Mon Oct 12, 2009 10:30 pm Posts: 270 Location: South Australia
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 Posted: Thu Sep 27, 2012 9:24 pm |
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It is a usless vacuum thing pull the two hoses out and plumb them together and now u have another spot for a aftermarket temp sensor. A lot of Japanese car have them apart of emissions that do completey nothing.
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losfer

az supporter
Joined: Fri Mar 30, 2007 11:30 pm Posts: 977
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 Posted: Fri Sep 28, 2012 12:16 pm |
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Its called a BVS valve , and in your case it is useless as you dont have the solenoid thats bolted to the head that one of the hoses go to (both hoses arent supposed to go to carb).
its goes like this ... vacuum hose from carby to BVS valve ,vacuum hose from BVS to solenoid on head then vacuum hose from solenoid to EGR valve
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BlueSuzy

az supporter
Joined: Sun May 04, 2008 11:30 pm Posts: 9716 Location: NSW
Vehicle: SJ51 LWB, SJ70 SWB
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 Posted: Fri Sep 28, 2012 1:01 pm |
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It is an alternator
_________________ BlueSuzy wrote: I'm over the G16b's.
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fordem
Joined: Mon Apr 19, 2010 11:30 pm Posts: 2656 Location: Georgetown, Guyana
Vehicle: APK416, A6G415, A6N415
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 Posted: Sat Sep 29, 2012 2:44 am |
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TVSV or Thermal Vacuum Switching Valve - it switches the vacuum on/off based on engine temperature.
One of the two hoses will be routed to a vacuum port on the carburettor and the TVSV links the two ports when the engine is warm so the vacuum is applied to whatever the other tube is/was connected to, when the engine is cold, the TVSV blocks the ports so no vacuum is applied.
Does you car have an EGR system - that is what it was commonly used with, to prevent the EGR from activating when the engine is cold.
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coily96

az supporter
Joined: Wed May 05, 2010 11:50 am Posts: 823 Location: Beenleigh
Vehicle: Coil Sierra
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 Posted: Sat Sep 29, 2012 9:22 am |
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it has a EGR valve but i dont see a EGR module. I replaced it anyway.
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losfer

az supporter
Joined: Fri Mar 30, 2007 11:30 pm Posts: 977
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 Posted: Sun Sep 30, 2012 8:41 am |
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BVSV , Bi-metal vacuum switching valve ...
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