|
Go
|
New
|
Find
|
Notify
|
Tools
|
Reply
|
|
|
Member |
Hello all. I just came across this info while looking for specs about micron rating for the stock fuel filter for my '93 Dodge.
http://www.greenfuels.org/biod.../res/oem_CUMMINS.pdf Or if you prefer the original source: http://www.pnwis.org/2004%20Ev...02005%20Rudisill.pdf The most interesting thing I found was the explaination for loss of power as my engine heats up: "In general, lower viscosity results in lower power due to increased internal leakage in the fuel system. Also,lower viscosity fuels generally have lower thermal energy content. The effect viscosity has on power depends on the type of fuel system used." (pg 8) Also: "The maximum recommended fuel pump inlet temperature for Cummins engines is 70°C [158°F]." AND: "Used engine lubricating oil can be blended with fuel using the Cummins Lube Oil Blender, Part Number 3376317 (110 volt, 60 Hz) or Part Number 3376362 (220 volt, 50 Hz). This process can be used to supplement fuel supply as well as provide a means of disposing of used lubricating oil." "Cummins permits a maximum of 5 percent used lubricating oil to be blended with fuel. This helps to reduce operating costs and aids in the disposal of used engine oil." as always peace and love billyO '93 Dodge 250 - 5.9L cummins, 275K w/40K VO miles so far. Cold-upflow settling with gravity feed through 10 and 3 micron spin-on filters (which have not needed changing for 500+ gal and counting. Hooray for cold-upflow settling! Thanks john galt! ) |
||
|
|
member |
I don't know for sure, but I think all the trucks in that age range typically had a 10 micron. Only very recently did OEM's start putting anything finer on trucks (like 2007, maybe). |
|||
|
|
member |
Don't know what the micron rating is for the stock fuel filter but I have had them plug after a few thousand miles of cold veg blends that had been well filtered with over 30 passes of warm oil through four 10 micron felt gasket sealed water filter elements, I suspect it may have had more to do with temperature allowing fats to solidify on the stock engine filters paper element than it has to do with micron rating.
There is an electric heating unit between the top of the filter and the underside of the engine head but it may not be working after this many years, mine wasn't, I removed the heater device and screwed the filter directly against the head, gets warmer after the engine heats up but the filter is cold at startup. I regularly run up to 30% UMO blended with diesel in warm weather. My IP is now worn enough that I actually almost have to due this at all times or I have to crank for several seconds to get the engine started. Cold winter weather may allow the engine to start directly on cold thickened diesel this winter? The UMO does not create any more smoke, no weird smell to the exhaust, no loss of power, runs great. A friend here regularly runs a 50/50 cold blend of UMO/diesel in his 93 IDI ford 7.3L pickup in wartm weather. --------------------------------------------------------------------- 92 dodge cummins with over 260,000 miles. Running an unheated 50% diesel/50% WVO blend for about the last 75,000 miles when temps above 50 deg f, no modifications or heating except the addition of a throw-away in-line fuel filter (removed during cold weather). As of 8-01-05 I have been testing a 75% WVO/15% gasahol (90% RUG/10% ethanol)/10% diesel blend. Works fine down to about 65 f then starts rough. Runs ok once engine warms up. Back to a 50/50 diesel blend sence 9-15-05, just to cool now. -- 11-01-05 Modified stock fuel tank internal fuel pickup to have I.D. of 3/8 inch, this eliminated cold start slow idle and bogg on acceleration. Now adding 1 ounce each of acetone and pure gum spirits of turpentine to each 5 gallons of any blend, seems to help keep the fats in solution to a lower temperature --Heated 2nd tank in the works |
|||
|
|
Member |
Hello again. I called Cummins Filtration today and was told that the stock fuel filter on the '93 5.9L diesel was 20 microns.
as always peace and love billyO '93 Dodge 250 - 5.9L cummins, 275K w/40K VO miles so far. Cold-upflow settling with gravity feed through 10 and 3 micron spin-on filters (which have not needed changing for 500+ gal and counting. Hooray for cold-upflow settling! Thanks john galt! ) |
|||
|
© Maui Green Energy 2000 - 2009