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  #1  
Old 12-26-2005, 11:45 PM
300TDBioBenz's Avatar
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Check out this fuel pickup screen

out of my 79 240d. Is this algae? I bought the car three weeks ago and drove it from Maryland to North Carolina where I pulled the tank and replaced the pickup screen. I'll be driving it out to California in a couple of weeks.
This is a sweet car; I thought I loved my 300TD until I drove this.
Attached Thumbnails
Check out this fuel pickup screen-000_0331.jpg  
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Resurrected Nov 2010 - 79 240(SD) with 83 617 engine and 4 speed manual, 2.88 rear and 2.5" straight pipe unknown mileage (Salmon)
83 240D parting out
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http://flickr.com/photos/11103112@N03/

Last edited by whunter; 03-24-2009 at 11:41 PM. Reason: attached picture
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  #2  
Old 12-26-2005, 11:49 PM
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No, it does appear to be fungus however. If not that, its some sort of dirty fuel sludge or something. Clean er' off and you'll be all set.
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  #3  
Old 12-26-2005, 11:52 PM
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its alge/fungus... and thats a ***** to take care of...

Run some bioside through it, and be prepaired to replace many fuel filters, and possiably the lines...

~Nate
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  #4  
Old 12-26-2005, 11:55 PM
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It looks like algae to me. I suggest you add a half ounce of algacide every time you fill the fuel tank; this will prevent growth of algae in your fuel tank. I get algacide from a boating supply store here in San Diego. It's not very expensive and it's good preventive maintenance.
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  #5  
Old 12-26-2005, 11:56 PM
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Quote:
Originally Posted by pawoSD
No, it does appear to be fungus however. If not that, its some sort of dirty fuel sludge or something. Clean er' off and you'll be all set.

I think the screen has been replaced already, so that is handled. However, you will want to treat with a biocide of some sort, and get some fuel filters to carry around with you. Then drain the tank again and clean the screen after awhile.
Enjoy that 240. I hope it is a standard, my future dream car... Finding a standard 240D could save me from a 5 speed volvo 240 some day... (although I would enjoy both)
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  #6  
Old 12-27-2005, 12:00 AM
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Quote:
Originally Posted by dsl4evr
It looks like algae to me. I suggest you add a half ounce of algacide every time you fill the fuel tank; this will prevent growth of algae in your fuel tank. I get algacide from a boating supply store here in San Diego. It's not very expensive and it's good preventive maintenance.

LOOK OUT dsl4evr,
You are in danger of getting the fungus vs algae lecture. Don't say I didn't warn you.......
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Gone:
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  #7  
Old 12-27-2005, 12:50 AM
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Smells like Diesel..
 
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Cool I hesitate..but

I had months of algae/fungus problems with my 300D. I used boicide and it didn't go away until I used StarTron Diesel additive...It works via enzymes and since I used it I haven't had to change filters once. Also available at Boat supply stores...like West Marine

http://www.starbrite.com/prodcatalog.cfm?ProductCat=Automotive&ProductSCat=Gas%20%26%20Diesel%20Additives%20%28Auto%29
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  #8  
Old 12-27-2005, 01:22 AM
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Talking ROFL, lecture time

Quote:
Originally Posted by JimmyL
LOOK OUT dsl4evr,
You are in danger of getting the fungus vs algae lecture. Don't say I didn't warn you.......
Algae/Fungus fixation...
Algae/Fungus fixation...

:GRIN:
Have a great day
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  #9  
Old 12-27-2005, 08:29 AM
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What you have is a microbial growth that occurs when diesel fuel sits in a tank with excessive air space and the heat changes produce condinsation and provides a breeding ground for the mocrobial spors that feed on hydrocarbon fuels commonly know as "diesel algae".

This information is courtesy of startron.
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  #10  
Old 12-27-2005, 10:04 AM
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i dropped the tank in blondie then used 5 qts of iso propayl alcholal to rinse the inside. each rinse came out cleaner. put in a new o ring and cleaned the filter and it has stayed clean. it is also a good time to take out the fuel sender and clean it so it goes up and down nicely.
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  #11  
Old 12-27-2005, 10:17 AM
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Since pulling the tank I've driven 1100 miles and have run it down to two gallons in

the tank and the primary filter is only showing a little contamination. I'll put in an additive first chance I get. The crazy thing is, this car was still running fine with all this crap in the screen. However, the primary filter clogged whenever I got below half a tank.

It is a 4 speed 240d, and having the manual tranny seems to make all the difference in the world.
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Resurrected Nov 2010 - 79 240(SD) with 83 617 engine and 4 speed manual, 2.88 rear and 2.5" straight pipe unknown mileage (Salmon)
83 240D parting out
96 Dodge Cummins 5 sp 4X4 long bed - 310k

http://flickr.com/photos/11103112@N03/
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  #12  
Old 08-02-2013, 03:46 PM
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Impressive

This is a heavy truck tank filter.
It is included because it is an impressively disgusting example of the issue.




.

.
Attached Thumbnails
Check out this fuel pickup screen-tank-sludge_sygrfi.jpg  
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1973 300D
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Last edited by whunter; 02-03-2014 at 03:38 AM.
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  #13  
Old 08-30-2014, 11:48 PM
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Recycled for new members

Recycled for new members

.
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Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
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Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
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1973 300D
1973 309D - stolen
1978 280SE
1980 240D
1983 300D
1984 190D
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  #14  
Old 08-31-2014, 03:21 AM
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I have put a half gallon of gas in my diesel tank when filling up about once every six months. It kills the Bacteria/Algae/Fungus (take your pick).
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  #15  
Old 08-31-2014, 08:23 AM
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I would bet the tank screen in my parts car looks like one of these. The PO ran anything that would burn in it
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