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1994 del Sol S
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1,103 Posts
Discussion Starter #1
Since my del Sol has over 200k on it, and noticing that the fuel filter was quite bad looking, I decided to change it out. Such an easy task to do, yet a very overlooked maintenance item. This was performed on a 94 del Sol, but should be the same process for all Civics with a firewall mounted fuel filter.

Time Needed:
About 15-20 minutes, depending on how fast you work.

Materials Needed:
shop rags
fuel filter (with copper crush gaskets)

Tools Needed:
9/16 brake line flare wrench
10mm socket
3/8" extention
ratchet
17mm wrench (or a socket works too)

I take no responsibility to anything you damage or break. Work at your own risk!

Before you begin, loosen your gas cap to release the pressure in the fuel system. Pop your hood, and you'll be looking at something similar to this:



The fuel filter is that little round thing thats bolted to the firewall, to the right of your battery. Boy that looks horrid.



To get started, use your 9/16 flare wrench to loosen and remove the fuel line going into the right side of the filter. Make sure to place your shop rags underneith the filter to soak up any fuel that will leak out. Next, use your 17mm wrench (or socket/ratchet), and loosen and remove the line on the left side of the filter that connects it to the fuel rail. As you remove the bolt, be sure to remove any copper crush gaskets on either side of the line.

Now that you have both fuel lines disconnected from the filter, you'll want to loosen (or remove if you so choose) the holder/braket that keeps the filter in place. Its a 10mm bolt, and its sort of a pain to get to. I used a 3" extention, and got the ratched in between the filter itself and the battery. (Bolt is circled in red, but you must remove it from the opposite side.)



Once you either loosen or remove the bolt, remove both the filter and the bracket (or wiggle the filter up out of the bracket). Be carefull as you do so, because its still full of fuel.

Old, nasty filter with the bracket attached.



Where the new filter will go.



Old filter, new filter, and the bracket (from left to right).



Installation of the new filter is simply the reverse of removal. Attach both lines to the filter (the copper crush gaskets go on both sides of the left most, rubber, line. One between the bolt and the line, and another between the line and the filter), reinstall the filter into the bracket, and reinstall the bracket onto the main bracket thats attached to the firewall.

Nice, shiny new filter.



Make sure everything is all tightened up, tighten your gas cap, and start the motor up. Make sure nothing is leaking. If you see no gas leaking from the lines, your set and job is finished. If you see fuel leaking from the lines, either the lines arent tight, or you forgot to install the copper gaskets.
 

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Honda Civic
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2,944 Posts
GREAT diy!!!!! This is exactly how I changed mine......consequently the only way to change it. But pics help others out nonetheless.

A+++ for pic references.
 

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Registered
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88 Posts
I found when i did mine on my ED, since i couldnt find a banjo bolt wrench, I used a c-clamp and a vise grips. Im not reusing the old one anyway. Just a disclaimer tho, it might wreck the old one.
 

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68 Posts
Good job.

I should point out tho that these nuts aren't always that easy to take off.

In my 98 EJ I had to remove the fuel line to the fuel rail still attached to the fuel filter to be able to break the nut.

Impact may have solved this but I didn't have one.
 

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\/ apply baby lotion here \/
'98 Civic 4 Door
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11,260 Posts
One good way to release fuel pressure is to remove your Fuel Pump fuse and turn your car on. It will shut off by itself.

One very important safety tip you forgot to add was to cover your positive post of your Battery so your wrench/ratchet don't touch it while you're working. You don't want to ground your tools :?

Leaking Fuel + Spark = FAIL!


Good write up tho :TU:
 

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yEaH tHaT gUy!!!
my hatchy
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3,178 Posts
One very important safety tip you forgot to add was to cover your positive post of your Battery so your wrench/ratchet don't touch it while you're working. You don't want to ground your tools :?

Leaking Fuel + Spark = FAIL!
QFT.


nice DIY tho. :TU:
 

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Registered
1994 del Sol S
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1,103 Posts
Discussion Starter #14
One good way to release fuel pressure is to remove your Fuel Pump fuse and turn your car on. It will shut off by itself.

One very important safety tip you forgot to add was to cover your positive post of your Battery so your wrench/ratchet don't touch it while you're working. You don't want to ground your tools :?

Leaking Fuel + Spark = FAIL!


Good write up tho :TU:
Wouldnt be a bad idea. I figured Id be safe with the red rubber covering the terminal. Just be careful and cautious around that area, and you'll be fine. :TU:
 

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1994 del Sol S
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1,103 Posts
Discussion Starter #17
The filter I got (Purolater, from Advance Auto) had the crush washers in with the filter. Some chassis have the filter-to-fuel rail line underneith the filter (I know 96-00 Civics do), but the general process is the same, all around.
 

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Defender of the D
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2,495 Posts
another way to relieve pressure off the system is to simply remove your fuel cap. You ever hear that SHhhhhhhhh when you go to get gas.. Yeaaaaaa.
 

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Registered
1994 del Sol S
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1,103 Posts
Discussion Starter #19
Before you begin, loosen your gas cap to release the pressure in the fuel system. Pop your hood, and you'll be looking at something similar to this:
another way to relieve pressure off the system is to simply remove your fuel cap. You ever hear that SHhhhhhhhh when you go to get gas.. Yeaaaaaa.
 

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Defender of the D
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2,495 Posts
aww damn. guess i missed where you wrote that.. lolz.
 
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