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Old 01-20-2019, 07:20 PM   #1
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Fuel Filter Removal

I have an Ď02 Tiffin Phaeton with a CAT 330 model 3126. It has a single fuel filter/water separator filter. I havenít been able to start my rig as I let it sit for about 2 months and it lost its prime. The filter is stuck fast. Iím told to remove the fuel filter and refill with diesel and attempt to start it. Problem is the only access to the filter is from underneath the RV. I have tried every imaginable filter wrench (I have 5 different ones)and either thereís not enough room for some or they wonít grip the smooth exterior of the filter. Anyway Iím trying to avoid calling out a mobil RV service to get me going. So any ideas would be appreciated.
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Old 01-20-2019, 07:44 PM   #2
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Out of the 5 filter wrenches you have, do you happen to have this kind? This is best wrench I've ever owned.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Hopefully this reply will advance you to the main forum page and get you some more help.
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Old 01-20-2019, 07:46 PM   #3
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Quote:
Originally Posted by marjoa View Post
Out of the 5 filter wrenches you have, do you happen to have this kind? This is best wrench I've ever owned.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1



Hopefully this reply will advance you to the main forum page and get you some more help.


That one works the best for me also, itís my go to wrench for everything.
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Old 01-20-2019, 08:13 PM   #4
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Quote:
Originally Posted by marjoa View Post
Out of the 5 filter wrenches you have, do you happen to have this kind? This is best wrench I've ever owned.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1



Hopefully this reply will advance you to the main forum page and get you some more help.


Unfortunately thatís the only one I could get a grip with but the filter still wouldnít budge. But I appreciate your response.
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Old 01-20-2019, 08:18 PM   #5
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Get this, its what mechanics use. A long extension gives it long reach.

Make sure you get the correct size.

https://m.lowes.com/pd/KD-Tools-Auto...xoC0gkQAvD_BwE


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Old 01-20-2019, 08:43 PM   #6
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Try this one: https://www.amazon.com/Tools-3149-Ny...s=strap+wrench Available at any auto supply store and will take a 1/2" breaker bar with a pipe on it. On REALLY secure filters it'll crush the filter, but the filter comes off. Fits all size filters. Been using the same wrench for about 15 years on RV's, cars, trucks, mowers, combines, tractors, and any other machine that has any filter. Never failed.
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Old 01-20-2019, 08:59 PM   #7
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Originally Posted by Jimbob1947 View Post
Unfortunately thatís the only one I could get a grip with but the filter still wouldnít budge. But I appreciate your response.


Sounds like the Cummins gorilla did your last filter...this will sound wierd but did you rotate the tool 180* on its axis? Might be able to get a better bite.
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Old 01-20-2019, 09:32 PM   #8
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A second vote for the one twinboat pictured. It allows you to work in tight places. Use a long extension and ratchet and you can remove any filter
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Old 01-20-2019, 11:15 PM   #9
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Pigman1 has the right approach. Use a strap wrench with a long extension on it. Attach the extension to a 1/2 inch breaker bar. At the end of the breaker bar, slide a 3 foot piece of pipe to give you the leverage needed. NOTE: The strap should be placed at the end of the filter (opposite of screw end), which is the most rigid portion of it. I had the same problem trying to remove the filter in the air dryer. A fellow RVer on a post suggested this method which worked

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Old 01-21-2019, 01:18 AM   #10
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Quote:
Originally Posted by Dutch Master View Post
Pigman1 has the right approach. Use a strap wrench with a long extension on it. Attach the extension to a 1/2 inch breaker bar. At the end of the breaker bar, slide a 3 foot piece of pipe to give you the leverage needed. NOTE: The strap should be placed at the end of the filter (opposite of screw end), which is the most rigid portion of it. I had the same problem trying to remove the filter in the air dryer. A fellow RVer on a post suggested this method which worked

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That's what I use. they work especially well when working from underneath.
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Old 01-21-2019, 06:54 AM   #11
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I have the big strap wrench and it will not fail. Better have a new filter because if the old one is seized too much it will crush it.

You can also remove the lines from the base and unbolt the base from the chassis in order to take the whole assembly to the work bench. In extreme cases.
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Old 01-21-2019, 10:23 AM   #12
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Hi ! Welcome to IRV2! We're sure glad you joined the gang!

I don't have a solution to the filter problem but noticed you are kinda new on IRV2 and wanted to say hello! Have fun and keep her between the ditches!

Good luck, happy trails, and God bless!
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Old 01-21-2019, 02:03 PM   #13
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Sometimes there can be a vacuum in the filter making it stick even tighter , given you have tried starting several times

Poke a small hole in the filter to eliminate that

I have both the strap and band wrenches, both are good and if a lot of room then the filter wrench first

You will most likely crush the filter so grip it close to the top
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Old 01-21-2019, 04:20 PM   #14
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Our Dutch Star also has a CAT 3126 330hp, with the HEUI electronic controlled injection system. We have two fuel filters, a prefilter with the water separator, plastic bottom cup and water drain valve in the bottom of the cup. We also have a "fine" filter (as I recall 2 micron rated) and the filter base has a manual priming pump. The advise I was given was to NOT prefill either filter and to use the manual priming pump to draw fuel into both filters and purge the air from the fuel system which achieved when the plunger on the priming pump becomes much more difficult to push in. The HEUI system has NO tolerance for any "stuff" in the fuel.
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