My carb is on the way back from being restored. It has one filter in the gas inlet at the carb. Do any of you put a filter anywhere else? If so where do you put it and what type of filter?
How often would you change it? When I took it out when I got the car a year ago it looked clean. It did also when I pulled the carb for the rebuild.
It normally stays clean unless you get a bad load of gas with contaminants in it. How likely is that. Service stations have their own filters in the hoses, and there is a mesh sock in your fuel pick up. If you want to change it when you tune up the engine, you can, but I would leave it alone. Every time you change it, you run the risk of an old carburetor not sealing the fuel inlet, especially if you try to loosen the fuel line without a line wrench.
I noticed looking at the intake bore holes the lower one, right side, the metal finish is a little rough compared to the other side. This anything to worry about? Look like someone took a hammer to it.
Filter wise of the two types that can be had for GM Carbs ( paper or sintered Bronze) you should run the paper.
Here's another method if you remove your fuel tank for cleaning or other reasons.....................I removed the old clogged fuel sock from the tank and replaced the fuel sender with a 1/2" diameter version without a filter sock. I then installed a billet filter into the fuel line inside the frame beneath the driver's door. There is a rubber line there from the factory and I removed it, cut several inches off the steel line and installed the filter. Now, I don't have to worry about the sock in the tank ever getting clogged again.
Don’t forget the fuel runs thru the inside and gets pushed out to go into carb so dirt collects on inside of filter. You won’t really see the dirt unless you cut it open. a extra fuel filter on the suction side would not be bad imo. It doesn’t have to be as small a micron filter either.
I have a dead fuel sending unit so I would imagine the whole unit is OLD. I need to drop the tank eventually but then will prob have to deal with the old vent lines while it is down.
If you are going to drop the tank anyway this might be a good time to replace the sender with one that doesn't use a "sock" filter. You could then install a suction billet filter in the line under the driver's door like I did. The RobbMC billet filter I used is cleanable and has a replaceable element. See post #8
