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  #1  
Old 12-19-2005, 12:39 AM
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Diesel filters, no tank strainers please.

This is for Diesel filters, primary and secondary, no tank strainers please.

The attached pictures are fuel filters from a 1984 300D W123.

No documentation of when they where last changed.

NOTE: I have added a shock dose of Biobor to the fuel tank as a precaution.
Attached Thumbnails
Diesel filters, no tank strainers please.-300d_primary_fuel_filter_1.jpg   Diesel filters, no tank strainers please.-300d_primary_fuel_filter_2.jpg   Diesel filters, no tank strainers please.-300d_primary_fuel_filter_3.jpg   Diesel filters, no tank strainers please.-300d_primary_fuel_filter_4.jpg  
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Last edited by whunter; 12-19-2005 at 12:50 AM.
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  #2  
Old 12-19-2005, 12:42 AM
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Secondary filter pictures

Secondary filter pictures
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Diesel filters, no tank strainers please.-300d_secondary_fuel_filter.jpg   Diesel filters, no tank strainers please.-300d_secondary_fuel_filter_2.jpg  
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  #3  
Old 12-19-2005, 12:44 AM
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Those cars must have been fueled with pure junky diesel! I ran my prefilter over 1.5 years and took it off only to find it had not even a few flecks of stuff stuck in the screen, it had just gotten dirty on the outside! (I washed it off to find this out!)

My new one (been in for 4-5 months so far) is still crystal clear after over 4.5k miles, nothing in the screen......buy at high-volume stations!

Also, I've been using the same secondary filter for over 2 years, and I can still roar to 100+ mph no problem, fuel is a-flowin fine. I'll bet there's practically nothing in it....maybe I'll change it next summer just to see whats in it....
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  #4  
Old 12-19-2005, 01:47 AM
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Was that gunk the result of biodiesel 'cleaning' out the fuel tank?
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  #5  
Old 12-19-2005, 08:20 AM
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Whunter your pictures of this stuff always amaze me. Tell me something. Is this stuff gritty to the touch or is it slimy? I have never seen it close up. I can't believe the poor fuel some people are getting. My plastic filter is still clear after 10k miles. My diesel tractors sometimes go for five summers on their filters.
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  #6  
Old 12-19-2005, 01:29 PM
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that looks

like fungi to me.

tom w
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  #7  
Old 12-19-2005, 01:49 PM
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Try the StarTron Diesel additive.
My filters were constantly getting gooped up, and since I put in the St DA. 1 month ago all filters are clear and dramatically different. No power loss or hestation since. It is available at West Marine or other marine supply stores!

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  #8  
Old 12-19-2005, 01:57 PM
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Pure petro diesel only.

Quote:
Originally Posted by Ra_
Was that gunk the result of biodiesel 'cleaning' out the fuel tank?
Pure petro diesel only.
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  #9  
Old 12-19-2005, 01:58 PM
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Grit.

Quote:
Originally Posted by J. R. B.
Whunter your pictures of this stuff always amaze me. Tell me something. Is this stuff gritty to the touch or is it slimy? I have never seen it close up. I can't believe the poor fuel some people are getting. My plastic filter is still clear after 10k miles. My diesel tractors sometimes go for five summers on their filters.
Feels like hard sharp black sand.
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  #10  
Old 12-19-2005, 07:33 PM
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Quote:
Originally Posted by whunter

NOTE: I have added a shock dose of Biobor to the fuel tank as a precaution.
Biobor will cause results like this- go ahead folks with crystal filters for five years, try it. After ruining a $11K IP after adding Biobor, I never use the stuff on a marine diesel anymore- IP's can cost as much as a new MB on the engines of the vessels I drive now. Fuel polishing is a much better choice.
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  #11  
Old 12-19-2005, 07:33 PM
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Crap From Bottom of Tank?

WOW, that looks bad. Looks like you got some of the crap from the bottom of the tank in the gas station. Many years ago, I was able to look inside a leaking diesel tank dug up from a gas station. I was amazed at the crap inside. This is why I go to fill up in stations that have recently replaced tanks, or those with high volumes like those near highways.
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  #12  
Old 12-19-2005, 08:50 PM
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Five years

Five years with only oil change maintenance, nothing else.
Filling the tank at the worst possible low volume ghetto stations.
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  #13  
Old 12-29-2005, 05:54 PM
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Adding links to related threads.

Adding links to related threads.

Spin-On Filter Replaced! - Pictures!!
Spin-On Filter Replaced! - Pictures!!
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  #14  
Old 12-29-2005, 07:05 PM
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Yep, looks like it was dirtier than I thought earlier! My performance degrading just began to happen recently though.....so it did make it about 20k before needing to be replaced.....
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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 76k - mine - (OC-80,500)
'17 Metris(VITO!) - 7k - wifes (OC-10k)
'01 E320 Wagon - 159k - mine (OC-160,000)
'89 420SEL 166k - mine (OC-167,000)
'01 E320 - 168k - dad's (OC-171,500)
'07 E350 Wagon - 131k - dad's (OC-132,500)
'01 SL500 - 49k - dad's (OC-52,000)
'09 E350 4matic Sedan - 128k - Brothers (OC-128,000)
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  #15  
Old 02-04-2006, 05:12 PM
Brandon314159
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Main filter with about 30-34k on the clock.

Changed it simply because I was tracking down a fuel system restriction...still looking for it...think it is the device that limits air to/fro the fuel tank vent

This filter has had WVO, biodiesel, and regular petroleum diesel ran through it...


...the goo looking stuff is the glue they use inside the filter.

BTW Yes I do have the right socket (shallow and such) and whatnot to properly remove the tank strainer
Attached Thumbnails
Diesel filters, no tank strainers please.-picture-019.jpg   Diesel filters, no tank strainers please.-picture-020.jpg   Diesel filters, no tank strainers please.-picture-021.jpg   Diesel filters, no tank strainers please.-picture-025.jpg  

Last edited by Brandon314159; 02-04-2006 at 05:18 PM.
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