Vacuum question
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Joined: Oct 2005
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From: Gummersbach/Germany NRW
Vacuum question
I have removed my dash (1971 convert.) to replace bulbs, tach, speedo cable and so on.
On my Tachometer, there is a plastic valve that has two stems. Since I can only find the one vacuum line that goes over the stem with a larger hole, I assume the stem that runs straight out is a breather since it has, in comparison, a much smaller hole? Or not?
What is this anyway?
On my Tachometer, there is a plastic valve that has two stems. Since I can only find the one vacuum line that goes over the stem with a larger hole, I assume the stem that runs straight out is a breather since it has, in comparison, a much smaller hole? Or not?
What is this anyway?
Le Mans Master
Joined: Jan 2006
Posts: 8,319
Likes: 7
From: Wilmington DE, Drive it like you stole it, 68 327 4 speed coupe
I have removed my dash (1971 convert.) to replace bulbs, tach, speedo cable and so on.
On my Tachometer, there is a plastic valve that has two stems. Since I can only find the one vacuum line that goes over the stem with a larger hole, I assume the stem that runs straight out is a breather since it has, in comparison, a much smaller hole? Or not?
What is this anyway?
On my Tachometer, there is a plastic valve that has two stems. Since I can only find the one vacuum line that goes over the stem with a larger hole, I assume the stem that runs straight out is a breather since it has, in comparison, a much smaller hole? Or not?
What is this anyway?
Le Mans Master
Joined: Jan 2006
Posts: 8,319
Likes: 7
From: Wilmington DE, Drive it like you stole it, 68 327 4 speed coupe
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
You should have two vacuum lines and an electrical connection on that wiper solenoid/valve you found on the tach. One line comes IN from the "manual activate" switch [under the steering column]; the other goes OUT to the light switch (as I remember). The tube out the end of the valve should be left open (it is a vent) but have a piece of foam put on it to act as a filter. You need to get a vacuum system diagram for your car to make sure you have it "plumbed" correctly.
Le Mans Master
Joined: Jan 2006
Posts: 8,319
Likes: 7
From: Wilmington DE, Drive it like you stole it, 68 327 4 speed coupe
You should have two vacuum lines and an electrical connection on that wiper solenoid/valve you found on the tach. One line comes IN from the "manual activate" switch [under the steering column]; the other goes OUT to the light switch (as I remember). The tube out the end of the valve should be left open (it is a vent) but have a piece of foam put on it to act as a filter. You need to get a vacuum system diagram for your car to make sure you have it "plumbed" correctly.
I beleive he was just referign to the one side of the solenoidm, meaning that he wasnt supposed to have 3 hoses. and since his wiper door worked its probably a fir guess that the other side was in place
tim
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