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Car Forum / Driving, Maintenance, Tuning / General Car Topics / August 2006Ford Fuel Filters / Carb Problem
I like Ford engineering but they sure dropped the ball on the inline fuel filter that takes a 15/16" wrench. My '77 Ford pickup had a gas leak where the filter meets the carb and in tightening the screw-in filter, the connection started spewing gas. I had a 15/16" wrench on the filter and though the long handle gave me way more leverage than I needed for such a small fitting, I didn't think I was putting too much torque on the wrench because it was turning very easily as though the filter were loose. So... Does anyone know of any good "Indian tricks" to resolve such an issue? I'm not sure yet if I split something on the carb or stripped the threads but clearly, somethings going on there that's fairly serious. Has anyone had any success with pipe joint compounds or teflon tape on these threads? Since it's a fuel system, I had assumed the gas might eat right through the teflon tape. Any help that might help me avoid replacing the carb is GREATLY appreciated. John >I like Ford engineering but they sure dropped the ball on the inline > fuel filter that takes a 15/16" wrench. [quoted text clipped - 19 lines] > > John First off, pull the filter and see what the damage is- split housing or stripped threads. If the threads are stripped, you can get away with drilling it out (carefully), tapping it, and using a brass nipple, a piece of gas line, and an after-market in-line filter. Or check into using a helicoil in you can find one that size- I don't know if they're made for that kind of application or not. You can use Teflon tape- gas won't bother it at all. If you're REALLY lucky, you only stripped the filter. Good luck! SC Tom , I didn't > think I was putting too much torque on the wrench because it was > turning very easily as though the filter were loose. [quoted text clipped - 3 lines] > the threads but clearly, somethings going on there that's fairly > serious. Ford had two or three different types of fuel filters in this era. One screwed right into the carb, probably like what you have. Another had a nipple screw right into the carb and the fuel filter was between two rubber hoses. Still another (I always liked this one best) was the fuel filter right on the bottom of the fuel pump. If you stripped the threads in the carb, you might try to JB Weld a nipple into the carb and have your fuel filter elsewhere. For peace of mind, I'd probably get a different carb with good threads. This is with the assumption that the carb threads are ruined. Like another poster stated, maybe it's just your fuel filter threads, but the way it was designed the filter threads usually never get stripped. > I like Ford engineering but they sure dropped the ball on the inline > fuel filter that takes a 15/16" wrench. [quoted text clipped - 19 lines] > > John Whatever you decide to do, keep in mind that the integrity of the connection must not be in doubt. I'm sure you can imagine what would happen if it fails and raw gasoline begins to spew all over a hot, running engine. Dave >I like Ford engineering but they sure dropped the ball on the inline >fuel filter that takes a 15/16" wrench. [quoted text clipped - 19 lines] > >John IIRC, there was a repair kit to address this specific issue. Check with a good auto parts store, not a chain, where the counterman knows his a.s from his elbow. > >I like Ford engineering but they sure dropped the ball on the inline > >fuel filter that takes a 15/16" wrench. [quoted text clipped - 22 lines] > with a good auto parts store, not a chain, where the counterman knows > his a.s from his elbow. Good suggestions above. For future reference: The Ford shop manuals require the use of tubing wrenches on fuel filters, power steering hoses and all other tube fittings. Torque wrench fittings suitable for use on tubing are also available. When you don't use this stuff, you are more likely to have problems like the one you're enjoying now. One of the several reasons to use the correct type of wrench on tube fittings: A conventional open-end wrench is highly likely to distort or collapse the nut, tube or flare...leading to a crack or split in the tubing. |
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