Thread: Dirty Diesel? / Best Second Filter for Puma Defender?

Originally Posted by DazzaTD5

So.... what is a second fuel filter that filters 5 microns going to achieve that the first fuel filter filtering 5 microns wont?

Assume your referring to my input. Nothing is the Answer to that.

Im just offering an alternative, In the Iveco I replace the unreliable cartridge filter with the Z669 , both are 5 micron. A pre filter needs to be coarser media , hence the Z 332 Ford / Mazda suggestion . Z252X is the same fit as a Z669 but is 10 micron.

Originally Posted by goingbush

Assume your referring to my input. Nothing is the Answer to that.

Im just offering an alternative, In the Iveco I replace the unreliable cartridge filter with the Z669 , both are 5 micron. A pre filter needs to be coarser media , hence the Z 332 Ford / Mazda suggestion . Z252X is the same fit as a Z669 but is 10 micron.

No no, wasnt referring to anyone's post, was just a general comment with regards to the sometimes sales spin of companies pushing second fuel filter installs.

I see a lot of "Quick! save you diesel engine now" and fit.... second fuel filter kit, fit a oil separator (catch can), remap with a performance tune, etc etc..... hell lets fit a hi-clone .....

So you’d stay with just the factory filter Daz? ...is there any merit in a second filter in case the First gets waterlogged, or is the fuel just going to carry the water to the scond anyway?

Originally Posted by goingbush

Those Fuel Managers are over rated & over expensive.

Get a fuel filter mount from a 70 series cruiser ($100 from eBay) & run a Ryco Z699 , 5 micron & have a water trap built in with a connection to hook up to an idiot light which will illuminate if theres water.

I make an adaptor to fit the Iveco fuel sensor inside the Z699 instead of the POS Iveco plastic housing rubbish , Ive had 2 standard filter housings split & they are $300 ++ , the Cruiser would be an ideal Aux filter for any LandRover, as would Ford Courier / Mazda Bravo Filters (pictured) which runs Z332 (10 micron)

Oh & you get a bonus hand primer pump, very handy.

I actually like this setup as on a 2.4lt Defender TDCi (puma) it will give you a simple way to prime the fuel system.
In fact I use a aftermarket alloy fuel filter head that has a primer on early model Jeeps diesels (as they suffer the same thing you mention, and at $300) that is round $50 and uses the same filter as the previous model Defender TD5 (which is used on a lot of diesels) In the pic is a Baldwin BF7970

Well you would really need one with a water trap.

I dont see fitting a fuel filter underneath to be the best spot, it doesnt really promote regular filter changing.
I spose the ideal setup would be 10 micron primary filter, 5 micron secondary filter, one of them with a water trap.

We are talking worst case scenario here.... dirty fuel with water in it.....
I would be more inclined to take a few spare fuel filters.

Don't know about the Puma but the Td5 filters have a built in water trap & the Discos have the "water in filter idiot light". Defender is same without the idiot light. Idiot thing about the filter is the location in the wheel well , no light needed for that.

If your worried about water in fuel don't wait for a light, just crack the drain on the filter & the water comes out before the diesel. All standard equipment - no aux filter needed.

That said Ive never had any water in the fuel of any of my 4x4's , in 35 years ,( not even the one I submerged ). Regular filter changing will deal with any water that condenses in your tank.

Understand the water trap, but how is a 10 micron and a five micron better than two 5’s?

Is there a water trap replacement filter for the standard filter underneath on a 2.2? Then is there a good location to mount a second 5 micron under the bonnet?

Is the genuine LR filter 5 micron?

Originally Posted by Zeros

Understand the water trap, but how is a 10 micron and a five micron better than two 5’s?

Is there a water trap replacement filter for the standard filter underneath on a 2.2? Then is there a good location to mount a second 5 micron under the bonnet?

Is the genuine LR filter 5 micron?

Because the primary filter, at 10 microns grabs all the "large" particles while the secondary, at 5 microns grabs all the left over particles.

Having two 5 micron filters does nothing. The second filter wont pick up 5 micron particles that the first filter somehow missed. As in if a particle goes through the first 5 micron filter then it will also go through the second 5 micron particle.

On the Defender TDCi (puma) I use a Baldwin fuel filter (sorry cant remember the number off the top of my head) but it is marked as "Secondary Filter" and is 5 micron.