I have done at least 8 flushes after de-oiling and citric flush... I still have sediment.

frankly.. its pissing me off.

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Most of heavy duty/marine/industrial diesel engines use coolant filters. They can be with additives added in the filter element or just plain. A lot of it is because of cavitation as mentioned above and the rest for particulate removal that is created by the chemical processes in the coolant system.
Bud

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1987 300D Turbo, 175k mi., 1998 BMW 323i Convertible, 1997 F250 4x4 7.3L PSD

Been there done that i had flush mine about 5 times. But just curious if it's got alot of sediment if the radiator's done stopped up.

Just curious where u would put a filter in if u could hook it up to the heater core where it wouldnt hurt u could use it like a bypass filter but i dont know of any filters that actually filter the coolant just "chemical filters" dont see them doing much actual filtering

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2004 Infiniti G35 3.5L 6mt Coupe 73K miles 25.6mpg ytd
2001 Green Audi TT 225 AWD Roadster 71K 6sp 30.9mpg >>STOLEN<<
1982 300D Turbo 231K 120hp? 28.1mpg YTD

Cross Flow Radiators do not stop up as easily as the as the ones that the water goes from the top down. As the larger heavier crap will settle to the bottom of the tanks on the sides of the Radiator.

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84 300D, 82 Volvo 244Gl Diesel

The newer coolant pressure tanks (M-B) have a puck in it, essentially a "coolant filter".

In a large heavy-duty engine, I'm used to having a coolant filter. It is primarily to maintain proper pH and nitrate levels to prevent cavitation-pitting on wet-sleeve engines.

These engines are often run all day and daily, so the coolant degrades much more quickly than a car engine. Further, they hold many gallons and are expensive to change fluids.

In your car, a coolant filter is IMO more of a pain to install than to simply check/change your coolant at regular intervals. You can check the coolant as I do, just buy the test strips from your local NAPA for diesel coolant test. If the pH and nitrates are off, there are many additives made for this purpose, I use Caterpillar extender, I've also used Penray's product which is good stuff and has a good reputation with OTR trucking companies et al.

The simple thing is to test every 6months if you wish (my M-B diesel cars have never shown a need for SCAs within the 2-year change period) and add SCAs (Supplemental Coolant Additives) if necessary.

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Gone to the dark side

- Jeff

are 617 engines wet sleeved?

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2004 Infiniti G35 3.5L 6mt Coupe 73K miles 25.6mpg ytd
2001 Green Audi TT 225 AWD Roadster 71K 6sp 30.9mpg >>STOLEN<<
1982 300D Turbo 231K 120hp? 28.1mpg YTD

I am not trying to avoid maintenance. I am only trying to trap particulate matter.

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no

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This is an intriguing idea. I never even though about filtering the coolant.

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1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png

If I have the room, I'm planning to add one inline with my Holset turbo's water cooling line (once its mounted).

what source are you tapping into?


I think the fuel filter mod setup will work just the same.

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I installed a coolant filter on my 1999 F-350 7.3 and it works really good. There was an extra plug in the water pump, where I installed a nipple, with a hose to the filter. The return line from the filter goes back and tees into the coolant reservoir.

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

got the filter setup on the housing.

Currently determining my sources and return.

source: the line that goes from WP to Auxiliary pump

return: the line from the firewall to the head

any thoughts??

I'd prefer not to route so much tubing, so a return that was closer to the Aux pump would be nice.

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What about the lower line from the reservoir to the radiator as a return?

that should be lower pressure... maybe?

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http://www.dieselsite.com/index.asp?PageAction=VIEWPROD&ProdID=8

Found pics of a add on kit ..looks like a oil filter..

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2004 Infiniti G35 3.5L 6mt Coupe 73K miles 25.6mpg ytd
2001 Green Audi TT 225 AWD Roadster 71K 6sp 30.9mpg >>STOLEN<<
1982 300D Turbo 231K 120hp? 28.1mpg YTD