Here is a peek at what BD can do to a plastic filter, you might notice the caved-in end of the end, as well as the guts melting ...

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Think Alternative Energy!
300CD '80 (now gone but not forgotten...)

hmm, it looks like the chrome is flaking off the spin on as well... or is that just the pic?

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Did the BD eat up the half shaft too?

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012

I keep a few of those plastic filters on hand since they really should be changed at LEAST every 6 months, but every 4 is better! That's not bad though and I would get the plastic filters that have the fine metal mesh inside. These filters won't last forever regardless!

Looks like the BioD is cleaning out some crud in your tank. It's amazing how much junk is in #2. Hopefully, you won't have as much as I did. Recently, I had to have the screen in the tank cleaned and the tank drained and cleaned.
From the looks of that filter, it was pretty clogged.
How long has that filter been on? I've run a similar looking filter without any problems but it did get changed probably every 5000 miles.

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87 300SDL - 215K Miles !!
99 F-350CC Dually PSD - 190K
86 300SDL - 189K
All on B-100

I've had the same pre-filter on my wagon for the last 20k miles running biodiesel. Are you sure it's not the rngine heat melting the plastic. Are you heating your biodiesel at all for winter use? If you are then I would remove the plastic prefilter, because that filter isn't designed to deal with heated fuel.

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That put me laughing out loud.

All in all, I think you need a new prefilter. At $2 each, go ahead and replace it.

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Mark in MA
05 MB E320CDI 402k Granite Grey Metallic
05 MB E320CDI 267k Black
05 MB E320CDI 232k White
05 MB E320CDI 209k Tectite Grey
99 Dodge 2500 Cummins 5sp 148k
62 Jeep CJ-6 120k

I run B100. The primary filters that have a plastic screen inside work great. Once I got a filter with paper inside and it collapsed and cut off my fuel supply when running B100. When I go to the parts store I refuse to take those.

I replace both filters every 12,000 miles.

By the way, I keep a set of filters in the trunk at all times, just in case.

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1991 350SD (updated rods)
Biodiesel B100 when I can find it.
Dino when really cold outside

That's overkill for normal maintenance, unless you have an algae problem or consistantly dirty fuel. I've had my filter installed for a year and the screen is just about as clear as it was when it was initially installed. It may take years before they get clogged to the point that replacement is truly needed.

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

Isn't that caused by excess methanol in your brew?

I agree. My three have been on commercial B100 for most of the time I've owned them. I changed filters more often when the cars and I were new to biodiesel but it probably wasn't necessary and I never had a clogged filter. I keep an eye on the prefilter just in case and change both about once a year.

Jeremy

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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