Redoing my hydrostatic fuel gauge with new red liquid

[JimG]

Glenn, Thanks for your continued thoughts on this. That vent tube is one of the larger diameter tubes, so seems less likely to be blocked, but it does end in that closed compartment inside the bell that you cannot access or see inside of. When I first pulled the tank unit out it was covered with black stuff all over (photos on post 25). I cleaned up what I could get at, but I'm sure the inside of the bell that is inaccessible probably had the same condition. Maybe cleaning the tank unit in an ultrasound cleaner like Sheldon does would be the only way to clean the inside of the bell. I did shoot compressed air down all the lines when I was cleaning the unit. The entire system has no moving parts - should be pretty straightforward.

[glennpm]

Originally Posted by JimG

... but I'm sure the inside of the bell that is inaccessible probably had the same condition. Maybe cleaning the tank unit in an ultrasound cleaner like Sheldon does would be the only way to clean the inside of the bell

I agree on junk in the bell and not readily accessible. I have a ultrasonic , Vevor, 10L unit, https://tinyurl.com/yavrmeh9. I got this so it would be large enough for a big Holley carb that I modified for my '40 and it works great. It has a timer and heater and as you can see would fit the tank unit.





Glenn