Hi John and all
Maybe this will help. I am fitting factory air on my C and 57 Imp. Here is what I learned. In 57, at least the early part the return oil that fed the piston to control the air door went back through the oil solenoid valve and back to a fitting brazed the lower portion of the oil filler tube on the valley cover. I have a couple of them. The auxiliary drain line that the manual states goes to the pan is not a true statement. The line in fact only hung down through the fire wall behind the engine to drain to the ground. Bear in mind this is intended only for a small amount of weep age if oil leaked past the piston.
You are correct. Later they did return to rear of left valve cover with the piston return line and auxiliary weep line. In 58 the coil was not mounted to valve cover allowing room for the return oil lines.
Hope that helps.
Gary, The Parts Doc
At 07:11 PM 08/06/2003 -0600, you wrote:Hello again,
Now that the carbs are right and the car runs smooth, I have some oil weeping from the 'return' or overflow spigot on the power piston which operates the fresh air door.
There was no hose connected to this connection when I bought the car.
The shop manual, page 432, figure 5 at the bottom of the page says that this drain tube goes to the engine oil pan? Figure 7 (same page) calls this line the Auxiliary Drain Tube for Air and Oil leakage past piston.
I believe in 58 this was routed back to a valve cover connector? I doubt there is an actual fitting on my oil pan for this, so where does it really go?
It weeps very little, but I don't want it in the interior of my car!
Advice much appreciated,
John
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