Thread: In-Line Fuel Filters

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I use two... one before the electric pump and one just before the carb... a little added assurance...

-Chris

i have used the frams but a pain in the butt to get apart under the car with fuel all over and playing with the O ring . i have used the in lines to they work but the last 4 jobs i have used the marine type that look like a oil filer they are much better then the frams to work with

I don't use anything but metal filters, whether it's at the tank or at the carb..... I don't like the thought of glass or plastic filters....IMO the metal canisters are a lot safer.... The convenience of being able to see what's in the filter is far outweighed by the vulneribility of plastic and glass filters to fire due to damage or accidental breakage......

I had a stamped metal inline type.didnt get the job done,ended up pulling my new holly apart and finding a 1/4 inch of rust sediment in the bottom fuel bowls of my new carb.ended up putting in a fuel cell, new lines ,fuel pump and a clear fuel filter I can see in and a new set of plugs due to fouling from the stuck needle valves in carb.a little extra money for a good fuel filter is a wise investment

Well, to each his own.... Think I'll stick with a metal filter out of the engine compartment area.... It's good enough for the majority of the race sanctioning bodies, so I guess that's good enough for me.... Just don't like the idea of plastic or glass full of fuel hanging over the top of my engine......
Regular fuel system maintenance and starting out with a clean system will pretty much eliminate the problem... That, and knowing the quality of the fuel you buy.....

I have used the clear ones for years and many cars the one that comes apart and has saved me on catching a plugged filter with garbage from old vehicle just kept cleaning and changing till things cleared up. never a problem, but thats me and I can see people not likeing them, if so don't use them then. ED

Until you've had a fire and a chance to test out that fire extinguisher you ALWAYS carry with you (YOU DO carry one, don't you??), any old fuel filter is fine. I had two underhood fires on my '79 truck. The first was a split o-ring on the back bowl fill tube on the @#$%$# OEM Holley carb the second was a broken glass fuel filter that I installed with an E-brock carb. This settled 2 questions in my mind - never use a single feed Holley 4160 and never use a clear glass (or even plastic) fuel filter. It gets expensive plus time consuming to repair the damage - control and lights wires, vacuum hoses, ignition wires, under hood insulation, air filters, etc.(luckily, no hood paint either time), and without the extinguisher, maybe the entire truck. But with that said - to each his own........

I use a Mallory electric fuel pump and a Mallory inline filter as shown.

Dave wrote:

That, and knowing the quality of the fuel you buy.....

Well, that could be a problem. I don't usually have problems with gas, local or otherwise, but I have had some bad experiences on the road. On the way to the Turkey Run several years ago we stopped in South Carolina for gas at a Sunoco station. After refueling I just got off the lot when the car started acting badly. Pulled over at the next station and had to dump the gas filter. Had gotten some water and a little crud from the station. Luckily, I had a spare filter and after installation we were back on the road with no more problems. Never can tell what you might run into at an unfamiliar gas pump.

Thanks GR... Think I might just do away with the replacable and get another cleanable!!! Never was sure I could trust them, but if they keep things clean enough for Webers, they will certainly work fine for a Holley!

Thanks to everyone for the words of advice and experience.
I think I will follow the trend of both a canister type before the fuel pump and a smaller in-line just before the carb.

Thanks

Originally Posted by GulfCoastGasser

Thanks to everyone for the words of advice and experience.
I think I will follow the trend of both a canister type before the fuel pump and a smaller in-line just before the carb.

Thanks

If you're going to be racing at a sanctioned track, might want to first check with their tech people and see if they allow a filter in the engine compartment..... the plain old parts store in-line filters with a rubber hose and clamps on a racer-type car IMO is just creating an opportunity for a big old fire to start.......

Don't know about drag racing but doing SCCA open track and auto-x as long as you are using AN lines and filters there isn't a problem with have a fuel filter at or before the carb/carbs