Anyone use anti-seize on spin on fuel filters?
 

i'm running cat filters on the pos ram. Was required to add antiseize to the filter to prevent galling. I have changed out new filters now, I added anti seize to both the cat and OE fuel/water seperator. Anyone see any harm in it? I still have the under hood filter. (So three total filters, and one down hill of the spin ons).

First I'm reading of putting anti-seize on an oil filter. I don't see an issue if you apply a light coating.

I'm not sure about oil. I did have a hell of a time getting the oil filter off my hmmwv. I didn't have any galling so I just chalked it up to ntc mechanics going ape hand on it.

Man, that would be scary to put anti-seize in an area that can easily be mixed with the engine oil. I have always just applied a thin coat of oil to the rubber gasket, and the rest of the filer is bathed in oil.

So to answer your question, no. As a side note: I have 1980s cars I change the oil on, not something modern. I have never had a problem getting the old filter off.

I would be concerned that tiny particles in the AS compound may somehow get into the fuel. Depending on their size this may cause an issue depending on the design of the injectors/etc.

CAT filter? OK, I missed the fact it was a cat filter. The second post made me read it as oil filter. Slight difference.

I don't even know what a cat filter is. Never filtered my cats, dogs or any pets.

I can't help you on that question.

I believe he is using Caterpillar brand fuel filter it is a common conversion in the diesel world . It is a bigger filter and filters to a much smaller micron level than OEM .

Doesn't it have a spot to put 2 wrenches on each end?
You get an amazing amount of torque when you squeeze the wrenches together.
Maybe too much when tightening.
It would have to be welded on to not get it apart using the same method.

Here's the last guy that tried it.....http://forums.pelicanparts.com/uploa...1579627534.jpg

Wouldn't do it on a bet, never seen any engine from the manufacturer with it ( or any other substance) on an oil or fuel filter.

What is the part number of the filter are you using?
I have never seen anything in the Cat literature about applying antiseize to filter threads.
(I work with marine engines at a Cat dealer)

Yes, diesel spin on fuel filters made by caterpillar. Supposedly 2 micron filters.
The anti-seize is so the fuel filters don't gall with the threads of the filter base and become stuck.

1r-0750

That's what I figured , are you using an aftermarket adapter made from aluminum ? But isn't the threaded portion steel ? Also the threads on the filter aren't very deep/long so not much surface area to gall . Plus it lives in the fuel which is somewhat of a lubricant , have you had issues in the past removing the filter ?

I am not running an aftermarket filter on my Duramax but I struggled for a few fuel filter changes trying to unscrew the old filter . Then I got the idea to open the bleeder screw to relieve pressure . Since then no problems removing the filter . To answer your question no I would not apply anti seize .

Most (all?) of our filters have an aluminum threaded insert for the inlet/outlet, including the 1R0750.

Not sure why people would have galling issues unless these aftermarket filter bases that people are using have stainless adapter fittings.

I haven't had issues with the filter sticking on. Initial application of anti seize on the filter and base is required. There's horror stories of people forgetting this step on the cummins forums.

I have no idea what my base is made out of. I would guess aluminium and steel threads.

Yeah, I did a quick googling and saw all the posts about this. No real mention of which adapters people were using, or whether this was actually an issue of corrosion between two dissimilar metals, which i was conflating with galling in my post above.

Good advice there.

(or pull pump relay and run it down?)

Diesels are a bit different than gasoline.

Introducing air into the fuel system is a pita

Not sure how the Ram fuel system works but on a Duramax the fuel head that the fuel filter screws onto has a bleeder screw and a small hand pump primer . So when I go to do a filter change I open the bleeder screw to relieve the pressure . I remove the filter and screw on a new one . While the bleeder screw is still " open " you start pumping that hand pump primer and it draws fuel into the filter which expels any air . You pump maybe 12 - 15 times until fuel starts coming out the bleeder , when you see fuel you close the bleeder . And your done :D . Fire the old girl up , let her idle for a few minutes and your good to go .