720D diesel fuel filter replacement problems

[chas036]

I am trying to replace the diesel fuel filters on my 720D. I removed the whole fuel filter assembly to make it easier to put on the new filters. My problem is that when I tighten down the filter covers, parts of the rubber gaskets that came with the filters keep squeezing out on one side or the other of the covers. No matter how much I try , I can't keep them from squeezing out or being pushed in side the cover, they just won't line up to get a tight fit all the way around. If I buy gaskets directly from JD , will they fit better? Do I even need these gaskets if I tighten down the covers tight enough? Is there another solution that I I am missing here?

 

[wilson ind]

Sure you got all the old gasket out??

 

[chas036]

yes it is out , I took the whole assembly off so I can see everything, no old gasket left

 

[Bob]

Be ABSOLUTELY sure all of the old gasket is out, with a sharp pick. You would not be the first to be fooled by age and heat and fuel-hardened old gaskets hiding up in the groove.

Once you are sure of that, and still have trouble get new gaskets from DEERE and stick 'em in place with a little grease before trying to install the canisters.

 

[chas036]

I got the whole fuel filter assembly off the tractor, so I can see there is nothing there. I will order those from deere. Just curious. can you make your own gasket by using that "form a gasket" you get in a tube? Would that work, or would the diesel fuel eat it away?

 

[James Lieb]

Put on fuel filter housing from 3020 and use spin on filters.

 

[chas036]

Does the 3020 fuel filter assembly fit directly pm the 720 without any customization and the fuel line attach in the same location?

 

[gpuller]

(quoted from post at 17:41:55 06/07/15) Does the 3020 fuel filter assembly fit directly pm the 720 without any customization and the fuel line attach in the same location?

I use the 3020 spin on filters on my 720. Just made a bracket out of angle iron to mount the filters in the stock location.
I bent new fuel lines. A person could probably modify the originals to fit. Makes filter changes a breeze.

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