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Old 06-23-2008, 06:48 AM   #1
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I'm a bit confused about what oil and fuel filters to use on my sailboat engine. It's a Vetus P.419 which is a marinised version of a Peugeot XUD9 (if that helps).

There are two fuel filters, one that is a Dahl filter, for which I have several replacement filter cartridges so that's no problem (and a source from which to order more) -- the only issue being that the tap at the bottom to drain the accumulated water and sediment appears to be blocked so I'm going to get at that with a needle or something to clean it out with when I'm on board next.

The secondary fuel filter attached to the engine has a screw-on cartridge at the bottom which appears to be black plastic, and has the words "User friendly filter" written on it, but no brand name. Are the filter units for these pretty much interchangeable with any diesel fuel filter of a similar type? My friendly local auto mechanic wants me to bring it in so he can find one that matches, but I don't currently have a spare on board and I'm reluctant to remove it and leave it off for any period of time lest dust and grime work their way into the open filter cap.

The oil filter is attached low down at the side of the engine, and again it's hard to determine what type it is without removing it. Again, I can do this but I'm reluctant to remove it and leave it off while I take it away to find a replacement (probably a 2 day job). Are all oil filters for diesel engines roughly alike and use the same fitting (i.e. can I just go and get a "good quality" diesel oil filter and assume it's going to fit?).

As it can probably be guessed I'm pretty new to the world of diesel mechanics, and although I've read the various guides and spent an evening or so napping (oops) through a diesel engine maintenance course, all of the writing seems to start with "make sure you have the right parts" without any clues as to what the right parts might be or where to find them.



= New South Wales, Queensland,
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Old 06-23-2008, 11:41 AM   #2
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I am not the expert, not even "reasonably knowledgeable" about diesel engines, but I do know that filters are one of the big issues and problems that we have gone through. Since I'm up early today, though, I'll start the answer process.

There are very large catalogs that are devoted to the correct substitute manufacturer filters for specific parts, and you do not deviate from this. You can even find replacement lists on line.

For example, fuel filters on our Yanmar engine are very expensive but there is to date no alternate filter that will work. The primary fuel filter, though, is a Racor filter, and with much work we could find several alternates that work. Easier with oil filters, lots of manufacturers make appropriate substitutes for the Yanmar oil filter.

This means that you must first find out what are the correct filters to use. Do you have your engine's owner's manual? Once you know the proper filters for that engine you can often find alternate mfr. filters for it. This is not a case of "it fits, so I guess I can use it". We have a very good diesel truck engine supplier nearby who has been exceptionally helpful.

Good luck.

In 1986 we went cruising for a few years. After 20 years and 50+ countries and several oceans, we are STILL "cruising for a few years".

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Old 06-24-2008, 01:18 PM   #3
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Thanks Jeanne,

I have made more phone calls than I particularly care to make about the filters but I seem to be getting somewhere. The Fuel filter was a matter of calling the Vetus reps in Brisbane and ordering it from them, given the engine model number they were able to tell me the part number of the fuel filter cartridge and sell me a replacement. The oil filter was a bit trickier -- Vetus gave me the part number but didn't have any available. So I rang a few places and googled for the part number a bit and found a half dozen or so equivalents, and ordered three of those from a local supplier.

The local engine/auto shops seemed to have a range of filters but none of them matched my particular model. They weren't able to find an equivalent in their catalogs either. The more remote ones, e.g. Vetus & Peugeot specialists in Brisbane and Melbourne managed to match it to a more commonly known brand and the local guys were able to find those.

Now to dig out that sump pump, I'm sure it's stashed away in a box somewhere ...
= New South Wales, Queensland,
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Old 06-24-2008, 09:54 PM   #4
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I sure know about making lots of phone calls and more about not getting anywhere.

After my last search for filters, fuel and oil, I finally decided to make up a resource table for our boat's engines (Yanmar and generator). I have the manufacturer's filter/impeller/belt/etc. part numbers, and where possible, alternate suppliers model numbers for interchangeable parts.

Now, no matter where we are, I feel confident that I can find a replacement part quickly. I go to the mfr.'s web site, and look for a distributor in the location we are. With more than one option we've been much more successful finding replacements easily.

I've entered the part number, mfr., and website (if there is one) of those items we regularly use or know will have to be replaced periodically. A printed copy goes into our boat maintenance manual along with the record of oil changes/filter changes and all other repairs and replacements.

WIX makes it very easy to find their filter that is a substitute for other manufacturers. http://www.wixfilters.com/filterlookup/index.asp

FRAM also has a site for this, but it isn't quite as easy to find on line and doesn't offer the same amount of information WIX does (WIX will tell you if the part number you've entered is recognized by them, even if they don't provide a replacement for it.)

I'm still no expert on diesel engines, but I don't feel quite as helpless as I used to.
In 1986 we went cruising for a few years. After 20 years and 50+ countries and several oceans, we are STILL "cruising for a few years".

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Old 12-22-2008, 06:35 AM   #5
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Hi it seam that you have algie and other stuf living in your tank .

Thats why you have drin plug from filter blocking everytime

Iam using a diesel conditioner before main filter never had problem anny more some more details below

The Magnetic Fuel Conditioneris installed in the fuel line between the tank and the filter. It continuously treats and conditions the fuel directly before combustion and before it returns to the tank. It optimizes fuel quality, and cleans the entire fuel system by simply running your engines.

Induction is the operating principle of the Magnetic Fuel Conditioners. The principle is explained in the realm of physics and implemented here with inline magnetic fluid conditioning devices to influence electron behavior. The results are improved stability, filterability and combustibility of the fuel. This same technology can also be applied to eliminate degradation and preserve the integrity of jet fuel, light oils and hydraulic fluid.

The cost of this unit is around $360 au

The benefits of usingAFC-705 Fuel Catalyst are derived from its unique formulation of dispersants, surfactants, combustion enhancers and deposit surface modifiers, targeting problems of contaminated fuel systems in storage tanks and carbon deposits in engines, turbines and burners. Cleans Tanks. AFC-705 rapidly dissolves and inhibits tank sludge and eliminates microbial activity. AFC-705 cleans the total fuel system.

Removes carbon deposits. AFC-705 combustion catalyst removes deposits by interacting with the surface of the deposit, lowering the energy of activation of its chemical bonds. This allows the release of carbonin the form of CO[sub]2[/sub] at the lower temperatures and prevents the formulations of any new carbon deposits in the combustion chamber or the exhaust system.

Prevents deposit formation. The AFC-705 catalytic components inhibit the agglomeration process from forming heavy deposits. The agglomeration process is stopped at the primary and secondary particle formation phase, which results in smaller, lighter particles.

Reduces fuel consumption. Deposits in the combustion chamber absorb and protect the fuel from complete combustion. AFC-705 catalyses the combustion process. It destroys and removes deposits, which leads to the more efficient conversion of the fuel to CO[sub]2[/sub][sub].[/sub] The surfactant component inAFCreduces the fuel droplet size, which enhances the combustion process, burning a higher percentage of the fuel before the exhaust valve opens. AFC treated fuel immediately reduces fuel consumption by 5 to 10%.

Reduces Emissions. As deposits are removed, the emissions of CO, NOx, SOx, HC and particulates are drastically reduced.

Reduces carbon content of ash. The catalyst interferes with the agglomeration of combustion by-products by enhancing CO[sub]2[/sub] production. With less carbon available to end up in the ash complex, the amounts of ash or soot will be significantly reduced.

Cooler Exhaust, Lower NO[sub]x[/sub]. Fuel has a limited amount of energy that becomes available during combustion through the production of CO[sub]2[/sub]. The catalytic components in AFC-705 enhance the combustion process. When more of the fuels' energy is released during the combustion phase, less energy will be available to be released during the exhaust phase. The difference in energy release correlates to a temperature difference. Higher energy release in the combustion chamber means lower energy release during the exhaust phase, which results in cooler exhaust, lowering the production of NOx.

Extends Equipment life. Engine life can be more than doubled as the result of complete deposit removal, cleaner oil and reduced friction. Injectors, valves, rings and other associated parts show little sign of wear, even after extended use.

Enhance fuel lubricity with the AFC-705's Lubricity Enhancers.

Inhibit corrosion with the AFC-705 Corrosion Inhibitor. arond $ 60 last for 2 years
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Old 12-22-2008, 08:24 AM   #6
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Thank you for taking the time and making the effort to post a good, comprehensive reply. We appreciate you sharing your knowledge.

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Old 12-22-2008, 07:09 PM   #7
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Its good to see that others are using fuel purifiers or fuel scrubbers rather than simply relying upon fuel filters. When you've got water in the fuel, you can go thru alot of filters very quickly and still not get it all out. And of course, water is the friend of algae.

We've put in an RCI fuel purifier. The particular technology has a three stage process reliant upon centrifugal and coalescence separation. The first stage slows down the fuel allowing free water droplets and other contaminates to accumulate and remain at the bottom of the filter until the filter is purged. The second stage involves perforated baffle plates which stop particulates and attract any remaining water droplets; in the third stage, the fuel passes through a coalescence medium to get any last water droplets or particulates to coalesce out of the fuel.

A heating element is available with this system to preheat the fuel as well. And, finally, there is a water indicator light so you know when there is enough water in the bottom of the filter bowl that it needs to be purged.

This fuel purifier is installed between the fuel tanks and the regular fuel filter. It can be used as a fuel scrubber if you plumb it in for that task, using a small fuel pump in conjunction with it.

I'm sure there are many other viable options out there for fuel scrubbing but the RCI was the only fuel purifier system that we found here in the US that could do what we wanted it to do at a reasonable price. Most the others were made for much bigger engines and fuel systems than ours and were priced accordingly. The RCI website is here.

We haven't purchased the pump for the fuel scrubber aspect of our installation. Looking at small regulated pumps by Walbro as they seem to be readily available via marine suppliers. We'll update with that shortly

"Do or do not. There is no try." - Yoda

What we're doing - The sailing life aboard and the Schooner Chandlery.

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