clogged fuel strainer - PeachParts Mercedes-Benz Forum

neumann · #1 07-11-2010, 09:31 PM

heres a pic of my clogged fuel strainer from my 80 300d sedan...nasty

I am utterly surprised that the car even ran with it in this condition. I was getting tired of changing primary filters every 2-3 days. The trick of swapping return and delivery lines in the engine bay would help in pinch but I needed to pull it and mark this off of my to do list.

I had a tank out of an 83 240d so I just pulled the strainer from that spare tank and got it ready for the 300d. The 300d had a push on hose barb fitting screwed into the strainer so it may have been service in the past or they just placed in the fitting to facilitate a fuel line replacement.

So I pulled off the line and a good dribble stream came out but I knew there was about 5 gallons in there and it would have taken a few hours to drain. I borrowed a 43 or 45 mm (not sure what size it was) socket from a friend and pulled the strainer. Boy, what a gusher of fuel that spewed out. I had a 55 gal plastic drum cut in half lengthwise for a collection vessel....works great.

layback40 · #2 07-11-2010, 10:04 PM

You have a "bug" problem. Time to treat your fuel to kill it off. I hear seafoam does a good job. There are plenty of threads about this sort of problem. Changing your fuel supplier will be a good idea as well.

whunter · #3 07-11-2010, 10:10 PM

Quote:

Originally Posted by neumann

heres a pic of my clogged fuel strainer from my 80 300d sedan...nasty

I am utterly surprised that the car even ran with it in this condition. I was getting tired of changing primary filters every 2-3 days. The trick of swapping return and delivery lines in the engine bay would help in pinch but I needed to pull it and mark this off of my to do list.

I had a tank out of an 83 240d so I just pulled the strainer from that spare tank and got it ready for the 300d. The 300d had a push on hose barb fitting screwed into the strainer so it may have been service in the past or they just placed in the fitting to facilitate a fuel line replacement.

So I pulled off the line and a good dribble stream came out but I knew there was about 5 gallons in there and it would have taken a few hours to drain. I borrowed a 43 or 45 mm (not sure what size it was) socket from a friend and pulled the strainer. Boy, what a gusher of fuel that spewed out. I had a 55 gal plastic drum cut in half lengthwise for a collection vessel....works great.

Fuel Delivery:
http://www.peachparts.com/shopforum/showthread.php?t=146034

Algae/Fungus fixation...
http://www.peachparts.com/shopforum/showthread.php?t=138733

Biobor, what is it, why do I need it???
http://www.peachparts.com/shopforum/showthread.php?p=723857

Filters, Fungus, Biocide, etc.
http://www.peachparts.com/shopforum/showthread.php?p=823378

Algae Clogged Filter Pic StarTron WORKS !
http://www.peachparts.com/shopforum/showthread.php?t=138728

neumann · #4 07-11-2010, 10:48 PM

This is after about 1/4 bottle of the quart Startron....

neumann · #5 07-12-2010, 10:26 AM

I thought it was the quart bottle but is is the 64 oz bottle.