Re: Manifold Drain Tube

Posted by Mike D. On 2016/11/4 21:32:07

Well, I was told by a Packard restoration expert that it is an aluminum ball, so the vacuum can easily lift it. The issue here is that the car is at 7600 feet of altitude, so the manifold vacuum is only about 14 inches, since we lose 1 inch for every 1000 feet of altitude gain. The car came from Georgetown Colorado, which is at an even higher altitude! So maybe that is why it got soldered shut! I may just need to leave it that way, but I will examine the end of the tube this weekend to see what I have there. I can test the thing with my vacuum bleeder pump to see if it will work, if the ball is in there.