Worked on these more today.
This first pic shows the 3/8 NPT bung I am going to use for the vent. I turned a shoulder on it so I could weld in from the back-side. I did not want to weld it from the top because it was very tight next to the other fitting. Notice the -12AN fitting has specs in it. This happened when I welded it to the plate. I guess this alum. had some impurities in it. I have to polish it off.
Here it is welded from the back.
Getting ready for the large pickup tube. Jigging up alum. is sometimes a real pain. I had to line up the inside hole and not move it when tacking. I was looking for a long threaded rod to "squeeze" everything togehter but did not feel like looking for it. So I just tacked it.
A few minutes later all welded up.
All nice nice.
You can see the wriitng on my welding JIG. These are the settings so when I do the other one I do not have to play around with settings. My machine has memory settings as well.
I almost broke my wrist cutting this hole with the 2.75" hole saw.
Here you can see the difference between the stock and the new pickup. The ID of the new one is almost .700"
Just another shot of the size.
I had to hammer a little curve in the plate. Also there is a plate/baffle welded in the tank I have to "adjust" to get the new pick-up to fit right.
Stay tuned for welding the pickup on the tank.
