Hey guys! Need help! I have a Chevy 350 SB (69 Camaro) and the fuel filter has a rusty kind of debris in it. Worried it's affecting the floats on the new holley 650 just installed about 2 weeks ago. Fuel issues has been like that for 2 years, always put a new fuel filter on annually, never thought anything of it. Started the car and it ran rough. Pulled plugs... were wet, dried, cleaned and reinstalled. Car runs fine now but I THINK debris may be coming from the fuel tank or the diaphram from the fuel pump. Anyone ever have this issue? Ideas? Getting the carb checked out in a few days, I think the floats may be stuck up and that's why I have wet plugs?
Best advice is a new tank if available. 2nd choice if there is no repro tank, is to get it cleaned. I doubt I'd use a sealer, they keep adding more things in gas; it may melt someday. ...then fix the carb
You don't mention what kind of car but my first suggestion would be to replace the tank with a new one. If that is not an option, this is what I would do ... drain and drop the tank ... toss in a chain or some gravel and shake the hell out of it ... rinse tank (basically you are trying to knock loose then remove the rusty***** in the tank, do this at the beginning of each season). Add a filter "sock" to the end of the fuel pickup tube in the tank if it doesn't already have one ... change fuel filter. Might also be a good time to install a drain plug on the tank so you can periodically drain any silt/rust that collects at the bottom of the tank. You could seal the tank if you feel the need, but based on my own personal experience, I will never do that again. Best of luck
Holley's hate dirt ,even real small dirt or trash... If you see that much rust in the tank you will need to have the carburetor rebuild... After the tank re-installed and the carburetor re-done ,use a high grade filter system on the gas line , I use Taylor and or Russell canister style and never have a problem . Well until now ,sense I just jinxed myself with that statement......LOL