what sensor is this? was this?
- Thread starter Ken B
- Start date
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Terlingueno
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Thermal vacuum switch. Changes the ported vacuum advance as the engine warms up.
H2OnSnow
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Circle the part you're talking about. I think I see a broken temp sender.
Ricko1966
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You can plug it,or leave it as is. It would require a vaccum source from it to the carburetor. And a line to whatever it controlled. At a certain temp it would open and allow vacuum to pass through it ,to control something. With no vaccum source from the carb it isn't doing anything. If it was for vacuum advance your line is routed around it now anyway,so you still have vacuum advance. Many times the thermovacuum switch has 3 lines 1 for ported 1 for manifold 1 to vacuum advance.It switches the vacuum advance supply from ported to manifold and back based on engine temperature. Remember that discussion we had about ported vs. Manifold vacuum. The factory many times used both. Ported for emissions,manifold for engine cooling.
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i have other fish to fry....not going to stir anything else up...it stays as is for now
my thought was a vacuum leak in the broken sensor....wrong assumption
my thought was a vacuum leak in the broken sensor....wrong assumption
