Re: Vacuum Line Trough Exhaust Manifold
Posted by HH56 On 2015/6/17 16:21:27
The tube thru the exhaust manifold is the choke stove. It is a straight thru steel tube open on the bottom and fixed or pressed in the manifold so it can't fall out. It lets the automatic choke draw outside air which is heated by the exhaust gasses when it is pulled thru the tube and keeps the air from mixing with exhaust. The short tube which connects to the threaded fitting on the choke housing assy is straight on the manifold end and just slides into the end of the diagonal tube.
The intake manifold on your car should have a fitting at the end just above the fuel pump. That was the vacuum supply port for the wipers for those years. Other years had the port located nearer the middle under the carb so if you have another manifold it could be in a different spot. There may be another port at the opposite end of the manifold on yours. If the car had vacuum accessories like an antenna that port was typically used.
From the manifold port the vacuum goes to the exhaust side of upper section of fuel pump and then thru the pump and out the intake of the pump and on to the wiper motor.
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The intake manifold on your car should have a fitting at the end just above the fuel pump. That was the vacuum supply port for the wipers for those years. Other years had the port located nearer the middle under the carb so if you have another manifold it could be in a different spot. There may be another port at the opposite end of the manifold on yours. If the car had vacuum accessories like an antenna that port was typically used.
From the manifold port the vacuum goes to the exhaust side of upper section of fuel pump and then thru the pump and out the intake of the pump and on to the wiper motor.
Attach file:
(63.40 KB)
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