C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Fuel Filter won't budge

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Old Apr 19, 2017 | 12:33 AM
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Default Fuel Filter won't budge

The bottom nut was unscrewed- ugh, no gas came out. Couldn't take out the bracket- so tried to work around it: managed to slightly untighten the top- there was fuel there. Now I can't seem to be able to remove the filter. I think the gas is out- it wasn't much. Is there an easier way to get the darned filter off? Any help - totally appreciated.

Thanks
1992 Vette LT1
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Old Apr 19, 2017 | 05:04 AM
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it's been some time since I've done an LT-1 car, but as I remember, I broke loose the fuel filter's inlet fitting first, then disconnected the fuel line at the engine, and dropped the filter and fuel-line assembly down - enough to access the filter's outlet fitting. I don't remember how the bracket is configured, but if it's anything like my 90 L98 car, there is a single M6 bolt.

some folks say to disconnect the filter inlet fitting, and the engine's fuel line and pull the filter/line up through the engine bay and replace the filter at the workbench. reverse to install. I had absolutely no luck doing it that way. good luck....

Last edited by Joe C; Apr 19, 2017 at 06:01 AM.
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Old Apr 19, 2017 | 09:10 AM
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I did my 95 by loosening the inlet, removed the bracket. I then put a 20mm wrench on the inlet side and 16mm wrench on the outlet side, used the 20 to loosen and get the filter out.

Gary
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Old Apr 19, 2017 | 11:24 AM
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I wanted to take the bracket but the fuel lines are sitting on top of that bracket. I've tried to spread them enough to get the bolt out.. I just didn't want have a worse problem ��. I saw a few YouTube videos- it really didn't seem to be THAT difficult. Anyone know how much leeway I have to move those lines? As everyone knows- not a whole lotta room.
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Old Apr 19, 2017 | 12:06 PM
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What ever you do, don't heat the fittings with a torch
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Old Apr 19, 2017 | 03:06 PM
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Originally Posted by CA Vette Chick
I wanted to take the bracket but the fuel lines are sitting on top of that bracket. I've tried to spread them enough to get the bolt out.. I just didn't want have a worse problem ��. I saw a few YouTube videos- it really didn't seem to be THAT difficult. Anyone know how much leeway I have to move those lines? As everyone knows- not a whole lotta room.
the fuel line that is interfering with the filter bracket is the return line. follow it forward and back and check for any mounting clips nearby, securing the lines to the frame. you may have to remove some of these clips to get some movement in the return fuel line so you can access the bracket /bolt. as i said, it's been a few years, but I don't recall any issues. here's a pic of the 92-93 fuel lines - note #22 tie-strap, and #14 fuel line clip. loosening and removing these item should allow some additional movement in the return fuel line. hope this helps and again, good luck on the repair.


Last edited by Joe C; Apr 19, 2017 at 03:42 PM.
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Old Apr 19, 2017 | 07:12 PM
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Joe C- thanks! Are those clips easy to remove? Are they the type that I should get from the dealer (to replace). Appreciate your help.
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Old Apr 19, 2017 | 07:58 PM
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There is also a clip in the engine compartment that may help with some movement, I think it is #62 in the illustration. Be careful with it, it is plastic.

Gary

Last edited by yd328; Apr 19, 2017 at 07:59 PM.
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Old Apr 19, 2017 | 08:31 PM
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I wrote this up a long time ago when I did my 96
http://corvette.spectraaccess.net/vette/technical.htm
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Old Apr 19, 2017 | 10:38 PM
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Originally Posted by bac22
I wrote this up a long time ago when I did my 96
http://corvette.spectraaccess.net/vette/technical.htm
Here a pic of the bolt and spacing I have to work with. Any help would be appreciated.

1992 LTI Fuel filter and bracket
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Old Apr 20, 2017 | 08:07 AM
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Looks like the return fuel line is not position the same as my 96. Can you just disconnect it, move it out of the way and then undo the bracket?
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