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Jeep Liberty Diesel

10709 messages,  Last post on Dec 07, 2009 at 7:59 PM

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What is this discussion about? Jeep Liberty, Biodiesel, Diesel, SUV

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#10649 of 10709 Re: Jeep Liberty CRD Problem [CRD_Bullydog] by desmo750ss Oct 30, 2009 (1:25 pm)
Replying to: CRD_Bullydog (Oct 30, 2009 8:04 am) Thanks CRD Bullydog, I will try the recs over the WE. I've been using Chevron Delo oil, I hope this is not what caused the prob as I heard great things about Delo. I use it on my vintage motorcycles and has been great. Also, any suggestions on turbolag? It gets a bit anoying when I floor it and it takes 2 or 3 seconds to respond. Regards
#10650 of 10709 Liberty CRD Oil Plug "O" Ring Option..? by mrmag00 Oct 30, 2009 (2:10 pm)
Having changed my oil the other day it took 3 attempts to stop the oil from leaking from the drain plug. Went to the local dealer to get the copper washer and there had never been any in stock. So much for the dealership changing the washer each oil change.....   I have a oil plug out of a 2002 Saturn which has an "O" ring when makes a perfect seal each time with little torque required. It appears to be 1/2 inch fine thread. Am thinking of getting a crd plug and having a local machine shop cut a groove in it for a "O" ring. Anybody have any info on how deep the groove is in relationship to the height of the ring..?   Here is the link the the pics of the plug I took.">   http://photoshare.shaw.ca/view/13452437393-1256940219-70673/0 Replies to this message: caribou1 (Oct 31, 2009 11:18 am) emp2 (Nov 01, 2009 4:59 pm)
#10651 of 10709 Jet Fuel in a CRD by ischilf Oct 30, 2009 (4:22 pm)
Hello all. I'm new to the forum, but have had my 2005 Jeep Liberty Sport CRD since it was new. Last year during the winter I was using jet fuel in the diesle engine and noticed only one difference, that being that when it was at idle the temp guage would be a little warmer (still in normal operating temp) then using regular diesel bought from cenex. I was told this was because of the higher burn temp of jet fuel. I didn't mind it because it meant the diesel engine would share its warmth better. When using regular Diesel in the winter it would take a long time before the cabin was warm enough to take a jacket off. I've noticed this with all diesel vehicles i've had. I also noticed slightly better MPG with the jet fuel. I noticed it was a lot cheaper for me to get it as well. I use to work for a small freight airline and when it came time for one of the planes to get a fuel tank inspection i always got a free fill up. I was wondering what the long term damage, if any, would be from running jet fuel in the vehicle as opposed to regular diesel. I know that jet fuel is tested and regulated alot better then diesel, think it may have something to do with its primary customer flying, but not sure. Anyways, i was just hoping for more opinions then A&P mechanics. Thank you, Ian Replies to this message: isx (Oct 31, 2009 7:24 am) axelf66 (Oct 31, 2009 9:23 am) ischilf (Oct 31, 2009 9:56 am)
#10652 of 10709 Re: Jet Fuel in a CRD [ischilf] by isx Oct 31, 2009 (7:24 am)
Replying to: ischilf (Oct 30, 2009 4:22 pm) I would worry about the lubrication properties in jet fuel. Diesel fuel pumps are lubricated by the fuel. Also the high combustion temps in the cylinder can't be good for the pistons and injectors. I have seen guys melt aluminum pistons just with propane mixture The injectors are about 500 dollars a piece. Just a thought, I know nothing about jet fuel. Replies to this message: axelf66 (Oct 31, 2009 9:23 am) ischilf (Oct 31, 2009 9:56 am)
#10653 of 10709 Re: Jet Fuel in a CRD [isx] by axelf66 Oct 31, 2009 (9:23 am)
Replying to: isx (Oct 31, 2009 7:24 am) JP4/JP5 (Jet Fuel) do not have the viscosity of Diesel Fuel. They are pulled off the stack at a much higher level. JP is similar to Kerosene and burns much the same. The compression ratio of the fuel is much hotter and could definately do some damage to your motor.   FYI I am a retired Aircraft Mechanic and also worked for Conoco in my younger days. I would suggest not using it. If your looking to run something lighter use winter diesel and an additive. Replies to this message: ischilf (Oct 31, 2009 9:56 am)
#10654 of 10709 Re: Jet Fuel in a CRD [axelf66] by ischilf Oct 31, 2009 (9:56 am)
Replying to: axelf66 (Oct 31, 2009 9:23 am) Thank you for the quick answer. I know that the fuel was using an additive called PRIST. I beleive that is to keep the fuel in a liquid state at the higher ALT. It also added some sort of luberication to the fuel for the pumps in an airplane. We were running Jet A, i'm not sure what the difference is between JP4/JP5, my A&P friends said that Jet A is much cleaner then JP4/JP5, but with out having the stats on both, i do not know what the difference is. Thank you for the help, and answers.
#10655 of 10709 Re: Liberty CRD Oil Plug "O" Ring Option..? [mrmag00] by caribou1 Oct 31, 2009 (11:18 am)
Replying to: mrmag00 (Oct 30, 2009 2:10 pm) The o-ring groove should be slightly deeper than the radius of the seal. When you put the edge of a knife over the seal in it's groove, check that the seal does not fill the section of the groove. It needs to move in the groove.
#10656 of 10709 Re: EGR Issues [synlubes] by winter2 Nov 01, 2009 (2:34 pm)
Replying to: synlubes (Oct 26, 2009 5:18 pm) I presented Amsoil 5W-30 diesel oil to the engine manufacturer, V.M. Motori, and they told me that so long as the temperature was below 40 degrees F, the oil was fine. Anything above 40 degrees F and the oil did not have the proper specs to protect the engine. On Amsoil's website, the 5W-30 is not even listed as an optional oil for the CRD. Only the European Formula 5W-40 is listed.   http://www.amsoil.com/mygarage/vehiclelookup.aspx?url2=2005+JEEP+LIBERTY+5
#10657 of 10709 Re: EGR Issues [axelf66] by winter2 Nov 01, 2009 (2:45 pm)
Replying to: axelf66 (Oct 27, 2009 9:55 am) Unfortunately, with emissions standards here to stay, the EGR valve is here to stay until someone comes up with a better way of reducing NOx in a diesel or a gasser for that matter. The issue with EGR failure in a diesel is the level of soot and that is based on the quality of the fuel and how much detergent and/or cetane improver one puts in the fuel.   As I have said in the past, domestic diesel fuel is swill. The Europeans have better quality fuel in terms of cetane and have fewer aromatic compounds in their fuel. Only in CARB land, California, can one get something resembling European diesel. Aromatic compounds contribute to particluate/soot formation as well as low cetane numbers.   I have over 57K miles on my CRD and have only had the EGR replaced one time at 14K miles. With the help of my local dealer and others here on this blog, and especially Caribou, I have not had to replace the EGR. I "blow the nose" at least three times weekly
#10658 of 10709 Re: Bad glow plug? [prairiegirl] by winter2 Nov 01, 2009 (2:55 pm)
Replying to: prairiegirl (Oct 27, 2009 9:32 am) Got a question here. Are you sure it is the glowplugs? Have someone check the power output from the battery, especially if it is the one that came from the factory. I changed out the original battery from my 2005 recently and replaced it with a group 34 DEKA battery. The fitment was fine and it has 875 AMPS zero degrees F and 1012 AMPS 32 degrees F. My CRD turns over beautifully.

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