lbhskier37 Posted December 7, 2006 Report Share Posted December 7, 2006 I'm trying to change my fuel filter and having a bear of a time. I have 92 regal with the 3.1. I can't seem to get a metric wrench to fit on the nut side of the filter. Are these SAE? If so what size, I think I will pick up some flare nut wrenches so I dont end up rounding them. Quote Link to comment Share on other sites More sharing options...
Crazy K Posted December 7, 2006 Report Share Posted December 7, 2006 I've usually used vice grips. when you get it apart, try greasing between the threaded fitting and the pip to prevent future binding. and don't foget that you should replace the O ring on the end of the pipe. Quote Link to comment Share on other sites More sharing options...
Brian P Posted December 7, 2006 Report Share Posted December 7, 2006 I seem to remember them being SAE. 5/8 and 9/16, but it's been SO long since I've done the non-quick-connect filters that I could be wrong. Quote Link to comment Share on other sites More sharing options...
97loudcut Posted December 7, 2006 Report Share Posted December 7, 2006 Good luck man. When I did mine, I PB Blasted it for 2 weeks straight..3 times a day and it still was a bitch to remove. Are you using a line wrench? Quote Link to comment Share on other sites More sharing options...
ns87 Posted December 7, 2006 Report Share Posted December 7, 2006 I used 15mm? line wrench I think and an adjustable on the other nut Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted December 7, 2006 Report Share Posted December 7, 2006 I thought it was 16mm? Quote Link to comment Share on other sites More sharing options...
Brian P Posted December 7, 2006 Report Share Posted December 7, 2006 16mm is just a hair bigger than 5/8. 5/8 = 15.9mm so it's possible! Quote Link to comment Share on other sites More sharing options...
Canada Posted December 8, 2006 Report Share Posted December 8, 2006 16mm and a 20 mm. Quote Link to comment Share on other sites More sharing options...
jeremy Posted December 8, 2006 Report Share Posted December 8, 2006 16mm and a 20 mm. This is correct Quote Link to comment Share on other sites More sharing options...
gimper Posted December 11, 2006 Report Share Posted December 11, 2006 Don't use an adjustable one for all sake unless you live somewhere where it doesn't rust. Use the line wrench... Gimper Quote Link to comment Share on other sites More sharing options...
ron350 Posted December 11, 2006 Report Share Posted December 11, 2006 As said above 16 and 20mm. Here is an article on changing your fuel filter. It is better to use a flare nut wrench (fuel line wrench) on the 16mm nut that threads into the fuel filter. It is important not to damage this NUT it is part if the metal fuel line and is costly to replace. If this nut has not been buggered with vice grips a 5/8’ line wrench will actually fit this nut tighter than the 16mm and reduce the chance of slipping. The large nut on the fuel filter is 20mm but don’t worry about damaging that it is part of the filter you are throwing away. http://www.pfyc.com/supportfiles/gasfilter/ Take PB Blaster or what ever has one of those long straws to direct the spray. Wrap the straw to the fitting with a long piece of cloth rag so that the end of the straw is pointing at the fitting. Now every day for a week hook up the spray head and soak the fitting and the rag. After a week of being soaked in penetrating oil the nut should break free. Remember that this fitting uses an o-ring to seal the steel fuel line to the filter so use anti seize on those threads when reassembling. Quote Link to comment Share on other sites More sharing options...
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