*Please note- if you try this, you do so at you own (and car's) risk.
Step 1: Tools and Materials
razor blade, or knife
something to catch the fuel that spills
Fuel filter- I used a Mann WK 842/3
***3/16" fuel line 4-5 ft***
In line fuel shut-off switch
(x2) 3/16 T-connections
-small: enough for all hose connections
-Large: To attach to optional mounting bracket
custom mounting bracket (not discussed in this instructable)
***If you're running WVO or biodiesel, you will want to get synthetic lins such as Viton or A1 grade Marine fuel line.***
Step 2: Diagram
Step 3: New Filter Placement
So find the location that you want the filter to go. This will give you an idea as to how much hose to cut. (I did not do any measuring here and depending on where you place the filter, your measurements will be different.)
Step 4: Cut Your Hose
You'll need to cut 7 pieces
Here they are:
1. Fuel pump to T-connector(1)
2. T-connector(1) to 2nd Fuel Filter
3. T-connector(1) to Shut-off switch
4. Shut-off switch to Orig. Filter
5. 2nd Fuel Filter to T-connector(2)
6. T-connector(2) to Orig. Filter
7. T-connector(2) to engine
Cut your hose with the razor blade and fit them to the secondary filter*
*Note. The filter connections are much bigger then 3/16" so they are really hard to put on. When I re-mount my filter I'm going to use a larger hose and 2 reducing couplers.
Step 5: Assembly
Also note that there are arrows on the filter. Make sure you put it on the right way!
Step 6: Remove Old Hose Pt. 1
Step 7: Remove Old Hose Pt.2
Step 8: Prime the Filter
Now that everything is hooked up, you're just about done.
First, loosen, or take out the bolt on top of the new filter.
2nd, unscrew the hand pump and pump it until fuel comes out the top of the filter screw hole (It took about 25 pumps for me).
Remember to re-screw you hand pump back down and then tighten up the filter bolt.
Clean up and you're done!
Step 9: How It Works
Keep the switch in the 'OFF' position. You'll be filtering your fuel through the new filter. When it gets clogged, just turn the switch and the fuel will go through the original filter so you won't have to spend a lot of time doing roadside repairs.
If you have any tweaks, let me know.