Start a service, go door to door...."Filter man."

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

How are these bypass filters supposed to be plumbed? My turbo 240D (when it was still a stock 240D) had a amsoil bypass filter with an inlet spliced into a oil cooler line with the outlet hooked to a nipple on the valve cover over the timing chain. Seemed wacky to me, and the engine seized (with oil in the crankcase). I think I'll stick with the stock filter. Those Germans seem to know what they were doing.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

Wanna send that bypass filter setup my way?

Part of the reason these cars last so long is that they already come stock with a bypass filter integreated with the regular filter. An additional unit that filters to a lower micron would always help though.

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1981 300D 147k
1998 VW Jetta Tdi 320k
2001 Dodge Ram 2500 141k
1979 300D 234k (sold)
1984 300D "Astor" 262k(sold)
Mercedes How-To and Repair Pictorials
I love the smell of diesel smoke in my hair

Yeah but the problem is unless you can get your hands on some Fram filters that are made in Turkey, that bypass medium is going to be made up of the crap that's swept up off of the floor. Sticks, junk pieces of cotton, and bugs don't make for very good filters. Until I can get my hands on some good Fram filters, I'm going to stick with the Wix, which doesn't have a bypass element.

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Seth

1984 300D 225K
1985 300D Donor body
1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!!
1980 300SD 311K My New Baby.
1979 BMW 633csi 62K+++? Dead odo

The cotton gin waste does not filter ANYWHERE as well as a true bypass filter. I doubt if that junk could be rated to filter in the micron range.

There is a guy on Ebay who says he has a ton of these & is asking $180 apiece for them --- just the filter body, no hoses or fittings. If you search for "bypass filters", then look for people with "stores", not the stuff up for bid.

I'd like to use synthetic oil, but don't want to extend past 3000 because of soot --- I figure one of these might filter out the soot & let me get my $ worth out of some Amsoil ...

FI is getting a deal on mine then Hopefully he will post back when he gets it hooked up. He should have more free time after that because he will never have to change his oil again.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

Why do you think I jumped on yours?

I've got an oil change in another thousand, I'll send in an oil sample for it and compare it to one after I get the filter installed.

This is how the bypass filter was plumbed on my (dead) engine:

Attached Thumbnails

 

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

I'm looking to install a bypass filter in my 82 240D soon. The car only has 52K miles on it so I figure its worth the time and money. There are several different bypass filter systems out there, the Frantz which was mentioned earlier in this thread that uses a roll of toilet paper as the filter eliment, Amsoil makes spin-on bypass systems that are cheaper than the above mentioned ones, and several more if you do a search on "Bypass oil filters". We use bypass filters at work on our equipment and they keep the oil very clean, backed up by oil sample results. Im my book its cheap insurance.

I'm also looking at installing a pre-lube oil pump.

Hodakaguy

Amsoil's filter cartridges are $35 or $37 list, however ...

I have not contacted them but the technology looks similar and the price may be better. http://www.spinnerii.com/index.cfm/div/divid/41

Regards

Thats even better! I didn't know that Spinner II made filter systems small enough for auto's. I work with large industrial engines that use the larger Spinner II's and they work great! I just called the factory and they said the Spinner II model 25 would work great for our application. List price is $348 and it filters down to 1/10 micron! You don't have to change any eliments with the spinner II's, you just remove the inner metal ball and scrape the carbon out. We've used them at work for about 6 or 7 years now. I'm going to look into getting one soon and installing it in my 240D. I'll take pictures and let you know how it comes out.

Hodakaguy

If you are really intersted I sell a filter assembly (Filter head, 0-60psi guage, and a large 1 micron absolute spin on filter element) for about $65. Add to that a gear pump of some kind, take the suction from the sump and filter through into a bucket. Then take a suction from the bucket and return it to the sump. A bit of overkill, but you will get 1 micron absolute instead of 2.9 micron absolute filtration. It will be periodic cleaning of almost all of the oil instead of filtering some of the oil all of the time.

http://www.fryerpower.com/store/page6.html

-Jim

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1995 S350D, Green with black leather interior.
Bought January 2008 w/ 233,xxx miles.
I did 22,000 miles during the first year of ownership.