Big Problem with fat in IP!! - PeachParts Mercedes-Benz Forum

arcticathlon · #1 11-02-2005, 05:50 PM

This is not for my 300D, but for my friends Dodge 2500 Diesel Truck.

he got some oil from a restaurant hot, and filtered it hot through his oil filter that was inline with his pump. he then blended it and this all happening the same day added it to his tank while still hot.

it ran fine while it was hot that day, but the next day he died 3 times trying to get his truck home. replaced the filter once, and it was covered in yeloow/clear fat. the whole filter element was covered in a 1/16th inch layer of it.

SO.....

i came over and we first drained the tank. (it was yellow thick crap) then empied the fuel filter again (his 3rd) and filled it all with diesel. tank has 2 gallons in it, and the filter is full too. we then plugged the block heater in for about 4 hours until the engine was hot, and we also took heat guns and were heating the IP lines, the IP and the injector ends.

It would not start. we had to get my 300D next to it, and have it hooked up to a battery charger to keep cranking that IL6.

Still will not start. so is the IP soo full of fat that he has to take it out and clear out all the lines going to each of the cylinders? what better way to heat it. we might go and buy a pipe heater cable, and wrap it around the ip, but cranking it for over 2 hours and heating it has given not even 1 almost start situation. always just cranking over. i think it is dry, with his system i cant pump and bleed myself. it is all automatic with his system. we can hear and know that the fuel pump has diesel in it, but i dont think it is getting any of the diesel.

so i really just need more ideas of what we can do to get it started again. i know this is the wrong forum for this topic, but you are all diesel freaks.

he has learned his lesson. no filtering suggestions, he knows what he did wrong... now

KansasDiesel · #2 11-02-2005, 06:04 PM

Quote:

Originally Posted by arcticathlon

This is not for my 300D, but for my friends Dodge 2500 Diesel Truck.

he got some oil from a restaurant hot, and filtered it hot through his oil filter that was inline with his pump. he then blended it and this all happening the same day added it to his tank while still hot.

it ran fine while it was hot that day, but the next day he died 3 times trying to get his truck home. replaced the filter once, and it was covered in yeloow/clear fat. the whole filter element was covered in a 1/16th inch layer of it.

SO.....

i came over and we first drained the tank. (it was yellow thick crap) then empied the fuel filter again (his 3rd) and filled it all with diesel. tank has 2 gallons in it, and the filter is full too. we then plugged the block heater in for about 4 hours until the engine was hot, and we also took heat guns and were heating the IP lines, the IP and the injector ends.

It would not start. we had to get my 300D next to it, and have it hooked up to a battery charger to keep cranking that IL6.

Still will not start. so is the IP soo full of fat that he has to take it out and clear out all the lines going to each of the cylinders? what better way to heat it. we might go and buy a pipe heater cable, and wrap it around the ip, but cranking it for over 2 hours and heating it has given not even 1 almost start situation. always just cranking over. i think it is dry, with his system i cant pump and bleed myself. it is all automatic with his system. we can hear and know that the fuel pump has diesel in it, but i dont think it is getting any of the diesel.

so i really just need more ideas of what we can do to get it started again. i know this is the wrong forum for this topic, but you are all diesel freaks.

he has learned his lesson. no filtering suggestions, he knows what he did wrong... now

No lecture, But boy do I want too.

I am not familure with the Dodge fuel system. Does it have a electric pump?
I would suggest pull every thing including the injectors and clean in diesel or another soulvent, main thing is get diesel back in the whole system, may be forcing it wit the pump. Or some sort of electric pump to force diesel thru the system, that FAT will be hard to remove even on the inside of the IP, and lines.

dgreenhouse · #3 11-02-2005, 06:56 PM

my 2 cents -
1 - get it into a heated garage
2 - put a space heater pointed right at the engine and IP
3 - pour a couple of buckets of boiling hot water over the IP
4 - temporarily run straight petro-diesel to the IP from a plastic bottle with an extra piece of fuel line (maybe even DP)
5 - give it a go - if everything is good and hot then it should start on the fat and then run the diesel purge through...

300DPETE · #4 11-02-2005, 07:00 PM

Did your friend use hydrogenated oil?

boneheaddoctor · #5 11-02-2005, 07:04 PM

Quote:

Originally Posted by 300DPETE

Did your friend use hydrogenated oil?

sounds like he got a load of chicken fat......

arcticathlon · #6 11-02-2005, 07:10 PM

the fat was from Chick fil. 100% peanut oil, but burned for 1 week. so it had a lot of fat in it. when he gave me my hand pump back, i set it down so it could drain on some wood, and the next day there was a 2 inch circle of wax density oil. very hard.

i know i know, i filter my oil more, and he though he was getting good oil because it went through his filters so fast, but because it was hot, the fats were melted.

i guess we just have to heat heat heat.

leathermang · #7 11-02-2005, 07:15 PM

I am just guessing... but isn't there some kind of saponification process necessary to prep this stuff before using ?
Or some acid precip or something... ?

boneheaddoctor · #8 11-02-2005, 07:18 PM

Quote:

Originally Posted by leathermang

I am just guessing... but isn't there some kind of saponification process necessary to prep this stuff before using ?
Or some acid precip or something... ?

This sort of crap is better suited for making biodiesel than direct use as WVO....animal fat doesn't do will in a WVO system outside of death valley in summer.