Plastic Fuel Filters
 

I had posted earlier that I have gunk in my gas tank. I'm trying to decided if I want to remove the tank and have it professionally cleaned or try to clean it out on the car. I was thinking that maybe I could remove the sediment bowl screen and put a clear plastic filter in temporary to catch everything and see how bad it is. I don't really like this idea, but it's a thought. Are they a fire hazard? Will they cut down on fuel flow? Anyone else use one?

Re: Plastic Fuel Filters
 

disconnect fuel line at the carb, drain into safe container.

Re: Plastic Fuel Filters
 

That could work, too. I am concerned that even after I get these rust particles out there will be more later.

Re: Plastic Fuel Filters
 

I believe the tank should be cleaned properly and there are YouTube videos on how to do it. Otherwise you'll likely be dealing with debris in your fuel for a really, really long time.

Re: Plastic Fuel Filters
 

If you have a glass sediment bowl you can put a NAPA 3039 or Wix 33039 filter in it.

Re: Plastic Fuel Filters
 

I would:

1: drain the entire tank using a filter into a gas can.

2: Remove the shutoff under the tank.

3: Look to see if there is a pencil filter installed, you should have one.

4: Use the above filer that bobc mentioned. They are great and do not cut the fuel rate at all. They are not a fire hazard.

Re: Plastic Fuel Filters
 

When I had the Pencil Filter installed things seemed to get worse. Unless it was just a coincidence......

Re: Plastic Fuel Filters
 

I have used one of those plastic filters on my cars for years. The last thing I want when I'm a hundred miles from the nearest town is a fuel blockage when they are sooo easy to avoid. I have had to change the filer roadside but that only takes a few minutes and we're on our way again.
BTW, if the filter is mounted vertically, you can monitor how choked up it is by watching how high the fuel is inside. A clear, new filter will have only a very thin line of fuel in the bottom. A filter close to disposal will be nearly full. The sediment clogs the filter from the bottom and as it becomes blocked, the fuel must go through the filter higher than where it is clogged. I always carry a spare.
Obviously, my cars are drivers so practical measures such as this are not only allowable (IMHO) but highly desirable. I fully understand why a purist who wants his car to be the way Henry made it would not want anything to do with a visible, non standard filter.

Re: Plastic Fuel Filters
 

My caution is to make sure that any plastic filter is located well away from the exhaust manifold and muffler. If the plastic melts then you'll have a stream of fuel running and a good chance of a catastrophic fire. Same goes for rubber or neoprene fuel lines.

The old VW bugs and busses did not come with a fuel filter but many folks installed one between the fuel pump and the carburetor. Most such aftermarket filters were installed with dodgy clamps or no clamps at all. The air-cooled VW engine bay could get pretty darned hot and, if the filter came free of the fuel line, there was fuel spraying all over which usually resulted in a fire. As With the Model A, the fuel is supplied from the tank via gravity flow so any such fire would have a steady feed of flammable liquid. Unlike the Model A, the air-cooled VW's had no shut-off valve to stop the flow. In the desert Southwest it was once not unusual to see the burned up shell of an air-cooled VW on the side of the road. Clean gasoline burns just as well as dirty gas.

Re: Plastic Fuel Filters
 

I have a plastic fuel filter on one of my cars installed about half way down the fuel line. It works fine, catches fine rust particles and has never given me any issues. As others have said, I carry a spare just in case.

Re: Plastic Fuel Filters
 

I use the same filter.

Re: Plastic Fuel Filters
 

My VW bug caught fire when the fuel line came loose. I smothered the fire with a blanket, re connected the fuel line, and went on my way.

Re: Plastic Fuel Filters
 

I purchased an AA truck this past summer. The fuel tank looks good inside, but there was so much really fine rust in there that the float valve of the carb stuck open, flooding the carb. Usually multiple times a drive. If there was a competition for how fast one could take off and clean a carb, I'd win it. I've had that much practice.

I tried first adding a glass sediment bowl. The rust still got past the fine screen. I added a WIX filter inside the sediment bowl. Rust still got through. I finally figured out the filter was defective - the glue that holds the paper to the metal cap was not tightly sealed, leaving gaps for the rust to still get through. I'd ordered a set of 6 WIX filters and every single one was the same way. Once I knew what to look for, the two filters I bought from NAPA were the same way. In desperation, I came up with a novel approach. Not a solution for those who want original, but it works for me and allows me to enjoy my truck.

I purchased a water separating fuel filter from Bass Pro Shops (amazon carries many of similar design). I used two 100 pound magnets bolted to the fuel filter housing to attach it to my firewall so I didn't have to drill any new holes. This truck bounces down the winding, rutted, bumpy back roads of WV and those magnets hold tight with no issues. I haven't yet replaced the sediment bowl on my car with this system, but I plan to. It's made a huge difference on my truck - I went from multiple issues every ride to absolutely none.

Re: Plastic Fuel Filters
 

I just installed a plastic fuel filter as insurance, even tough my tank was done with gastankrenu. No problems. I did have to richen up the lo speed screw a bit.

Re: Plastic Fuel Filters
 

Any thoughts on using a couple of neodymium magnets on the underside of the tank to catch stray rust particulate?

Re: Plastic Fuel Filters
 

Brilliant!

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The magnets to attach the filter to the firewall are genius. Well done.

Re: Plastic Fuel Filters
 

Not sure of what the magnet is actually composed of in my sedan. It is used to control Heart pacemakers. I mount it under the tank next to the gas petcock.

Re: Plastic Fuel Filters
 

Guten Abend.


I have the same problem, a lot of it. The inside of the tank is badly rusted.
I've fitted the glass bowl with the special paper liner, then added a plastic fuel filter too in the fuel line, and I'm still finding lots of small particles in the carburetor.
So I routinely clean it every 500 km.


The idea of ​​putting some strong neodymium magnets under the bottom of the tank is excellent, thanks!

Re: Plastic Fuel Filters
 

I was always told that iron oxide (rust) was not magnetic.