Anyone know of a reasonably priced fuel/water separator for a 123? It's an '83 240D to be specific. I would like to get one that has the clear bowl at the bottom and a drain cock. The Racor and Goldenrod filters are just too overpriced IMHO. I spent a couple hours going over threads and found one member who said the Napa 4348 is reasonably priced but Napa tells me they sell only the filter and not the housing.

Maybe someone has a used separator for sale? I'll also post that question under wanted to buy.

Thanks for any help.

Cheers,

Bill

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Cheers,
Bill

I have one. Easy to install, and under $70 at the time I bought it.

FM100 pre-filter upgrade: easy install, adds water seperation, inexpensive...

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Bob
'82 300D Petrol B-G Metallic

Hey bill murrow.
I have two for sale if you interested send me an email.I will send you pictures and diagram of the separators.

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Cheers
Big Dan MEng

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Just sent you a PM

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Cheers,
Bill

..

ForcedInduction.....Does this filter have the drain cock at the bottom?

Is the bottom clear so you can tell whats in there or do you just drain it off periodically? Ideally I would like one that has the clear bowl.

How do you prime it?

And you must've found this at the junkyard, correct?

Thanks.Looks like a good setup.

Cheers,

Bill

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Cheers,
Bill

Just did a search on the link to the site where you bought yours to no avail. Used keywords Stanadyne FM100 . Then I tried keywords fuel water separator and found no hits. I'll give them a call. Thanks.

Cheers,

Bill

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Cheers,
Bill

I suggest you call, and say you're looking for a Stanadyne FM-100 with the water bowl option. There are multiple part numbers and filter sizes available. It comes with one filter as part of the package. Don't get a filter that's too big. I ordered a 31873 filter, and it's too tall with the water bowl attached. You want the next size down.

http://www.reliableindustries.com/stanadyne-5.html

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Bob
'82 300D Petrol B-G Metallic

Should I junkyard for that, or is there a place on the Internet that'll sell em? Looks pretty good.

Is there a real benefit to adding one of these filters to the stock MB system? Could I completely replace the stock filter with an aftermarket one that's easier to change?

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1983 Mercedes-Benz 240D
Automatic, A/C, Power Sunroof, Power Right Side Mirror
231K Miles FOR SALE MAKE OFFER

kpmurphy(MS member), put one on his W115, if you have any questions maybe he could help you.

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

I bought a Racor 500FG for the D, was going to install it instead of the stock filter and pre-filter.
The idea is to have better flow, plus having the clear bowl, cyclonic pre-filtering and 2u filtration. Also it is heated so I wouldn't need to worry about the wax-point of fuel in the winter if I take it out on a cold day.
It does bother me to not know if my filter is clogging, no Racor gauge and no clear bowl, never know when the factory filter is going to leave the engine high and dry. I'm used to the Racor in boats and motorhomes, it just works.

Another great thing IMO about the Racor is the top-loading filter element, the filter housing stays full (almost) when you change the element. If it is after the lift pump, you change the element, start the car with the lid loose, when fuel starts bubbling out around the lid you tighten the wing-nut on top. Really easy and predictable.

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Gone to the dark side

- Jeff

Sounds like you have a good system daBenz, but I am left wondering why the primary & secondary are left on the car. Next question is whether you've ever found anything in the "secondary" when draining from it, which would indicate that the NAPA is junk (at the risk of being blunt).

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Gone to the dark side

- Jeff

If the fellow charges too much I would take my business elsewhere.

I agree. Theft is theft. If caught one of the questions the office would ask is not "do you think the proprieter charges too much?"

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

And a good question indeed.

I'm wondering how many microns the clear prefilter is and if I should eliminate the one just before the primer pump and keep one before the separator. Isn't doing anything if the separator filter is say 10 microns and the clear filter is 15 microns.

Thanks for the links diesel911. I'll check them out this evening....

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Cheers,
Bill

The WIX version 33149 of the my Mercedes Secondary filter is a Nominal 10 microns. This means that on the first pass only %50 of the 10 micron particles are filtered. The Wix plastic Primary Filter 33006 is a Nominal 20 microns (I have never seen one but it may have a paper element instead of a screen as the screen on my primary fillter look like it has larger than 20 micron holes in it).
As a Primary Filter think that the water separator that leaves a space at the bottom for crap/water seems to work really well even if their Micron rating dose not appear so hot. The empty area allow stuff to settle out before it even has to be filtered.
Leaving the plastic Primary Filter in the there dose no harm and since they always seem to have a bubble in them allows you observe the fuel flow which might be helpful during trouble shooting. On the negative side it could be another source of an air leak.

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84 300D, 82 Volvo 244Gl Diesel