I have an early 62,250hp,3spd car. The only fuel filter is the bronze filter in the carb. Has anyone ever added an aditional filter at some point in the fuel line? I just hate to cut the line at any point. The car is fairly original except for paint and carpet. Has anyone ever put a loop with a filter where the long line conects with the line off the tank? I guess there is no possible way to hide one? Suggestions please. Thanks in advance! Jon
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Re: fuel filter add-on?
Jon-----
You can add a filter just about anywhere in the fuel line that you wish; no problem, at all. However, keep this fact in mind: between 1970 and 1981 NO Corvette was built with anything other than the carburetor inlet filter. A LOT of Corvettes were built during those years and they worked out just fine without an inline filter.
Actually, for a carbureted engine, I think that the carb inlet filter is adequate. For fuel injected engines, it's another matter.In Appreciation of John Hinckley -
Addendum
By the way, would I add an inline filter to a Corvette that wasn't originally built with one? Except for very unusual and unique circumstances, NO.In Appreciation of John HinckleyComment
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Re: fuel filter add-on?
Buy a half dozen of those little sintered bronze filters and check the filter every 15K miles. It only takes a few minutes to R&I. Replace if it appears restricted. Also, drop the sending unit out the the tank and install a new filter sock on the fuel pickup.
That should be more than adequate assuming your fuel system isn't full of debris from a corroding tank or fuel pipes.
IIRC most filter socks are about 80 microns and filters are as low as 10 microns.
DukeComment
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Re: fuel filter add-on?
I put a NAPA 3012 filter in the rubber line that runs from the tank sender to the frame-mounted hard pipe. The filter is tucked up into the rear valence so that it is hard to see, but the judges usually find it and deduct a point.
That's okay with me because I don't feel completely comfortable relying on just the sock in the tank and the brass filter in the carb.Comment
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Re: fuel filter add-on?
Jon, You can buy a 2 buk paper filter at NAPA that fits into your glass bowl. A lot cheaper than buying the real deal and easy to change. DO not overtighten the thumb screw as it warps the aluminum top for sure. A lot of guys add a fuel filter next to the gas tank. But if you are that concerned why don't you filter the gas going into your car? I do it all the time with my midyear. Use a big paint strainer with my huge funnel. You would be surprised the little crap you filter out.
I just had a problem at the Fall Carlisle with my tow vehicle. It's a late model GMC and was running perfect until I was leaving the show with my trailer hooked up to it. The damn thing refused to idle without almost stalling. I figure I had picked up some crap gas or at least some water or moisture. So I put some STP fuel injection cleaner in it and in short order the tanker (holds 37-1/2) was running just fine. JohnComment
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Re: fuel filter add-on?
Thanks everyone! I had never experienced a problem until I needed to replace my original tank last winter. I must of sucked some really bad stuff off the bottom of that 40 plus year old tank. I did blow my lines out, but I continue to have problems from time ot time. New tank, new sending unit with new sock. I will continue to clean out my carb inlet filter prior to taking a spin. Thanks again! JonComment
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Re: fuel filter add-on?
Jon, It's amazing how much crap the engine fuel pump can hold too. Really no short cuts. Dirt is a killer no matter what the fuel system is. Carb or FI. Blowing out the lines with compressed air doesn't cut it. Doesn't remove the varnish build up on the inside of the lines. Then you put some fresh gas in it and you know the rest. The filter in the rear won't help if the system in front of it isn't spotless all the way. Gas filters aren't as good as people think you know. Dumb statement you think? May be depending on the type of filter. For the FI cars some of the old gas filters like in the 59 to 61 are next to worthless. The AC GF-90's for 62 and up were much better. Just like air cleaner elements. Some only catch the birds and leaves where others filter out the smaller stuff. And the list goes on. JDComment
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Right you are John! *NM*
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