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Unread 05-08-2014, 06:19 AM   #16
streetglideok
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2005 KJ Liberty 
 
Join Date: Jul 2011
Location: Colorado Springs, Colorado
Posts: 2,415
You could, but if the underside is dry, it's not going to show anything, as it is burning it then.

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Unread 05-08-2014, 09:36 AM   #17
jklanier84
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2002 KJ Liberty 
 
Join Date: Sep 2011
Location: Orlando, Florida
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my 02 burs oil like its free too. 3k oil changes, good air filter, new pcv, the whole nine yards. my conclusion? its 130,000 mi KJ and its just a thing it does. wheel on brother
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Unread 05-09-2014, 06:16 AM   #18
streetglideok
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Have you run an engine cleaner/flush thru it yet? It will eventually plug your cats if left alone.
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Unread 05-09-2014, 09:28 AM   #19
remmons
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2002 KJ Liberty 
 
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While changing out my radiator a couple weeks back, I had noticed some yellow pen writing on the water pump pulley, like that what is typically found on a salvage yard part. Ironically I had ran into the salesman of my dealer recently and he had asked me how that Liberty was doing, and I had replied to him that it was running great, but that it uses oil. He then proceeded to tell me that the motor in my Liberty is NOT the original motor, and that it had came out of a newer model with less miles, but he couldn't tell me any details as that he didn't have that information. So, at this point, I'm in the dark as to the mileage that is on the motor, what year that it had came out of, or the condition of the vehicle that it had came out of. So with this information I am going to perform a thorough inspection of the engine and see if I can find the source of the oil loss as that I really don't want to break down hundreds of miles away from home. On my next oil change this weekend I will run some motor flush through it and see what comes out of it. Maybe I'll even pop off a valve cover or the oil pan and see what is lurking within.
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Unread 05-10-2014, 12:48 PM   #20
jklanier84
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im pretty wary of engine flush products. i grew up at my families car dealership and its been my experience with high mileage motors that if it isnt really broke, then dont fix it. and ive seen engine flush cause spun bearings and other engine fatalities. just my personal opinion...
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Unread 05-11-2014, 08:51 AM   #21
olliehopnoodle
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1982 FSJ Cherokee 
 
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Our mechanic told us it is not uncommon for these engines to burn oil. No explaination as to why.

Perhaps some it drawn into the engine via the PCV system.
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Unread 05-11-2014, 07:30 PM   #22
streetglideok
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Quote:
Originally Posted by jklanier84 View Post
im pretty wary of engine flush products. i grew up at my families car dealership and its been my experience with high mileage motors that if it isnt really broke, then dont fix it. and ive seen engine flush cause spun bearings and other engine fatalities. just my personal opinion...
Typical urban legend, some factual basis but mostly legend, just like cross rotating radial tires. If it's using oil, that constitutes broken, therefore in need of fixing. Engine flush chemicals don't cause spun bearings, neglect of the vehicle does. If the engine is sludged solid, then yes, a flush cleaner can loosen deposits, block oil galleys and cause starvation, and the engine fails. Again, not because of the flush, because someone didn't care for their vehicle. What is fairly common today, is deposits in the oil rings, leading to oil consumption. Ford has internal bulletins on this matter and how to fix it. High mileage now is 300k+.
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Unread 05-15-2014, 12:18 PM   #23
remmons
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I have never had any issues with any type of motor flush, even kerosene (which is what I use since I can't tell the difference between motor flush and kerosene). I had a 1988 YJ with a 1993 XJ 4.0 with over 187,000 miles on it with a noisy lifter, and after using the motor flush the noisy lifted had ceased and my idle had smoothed out. The secret to any motor flush is to use a maximum of one quart, and to not to drive your vehicle while the motor flush is in your crank case. The added stress of driving with it in your engine "could" create problems (as I emphasize could, but not necessarily "will"). Although this may not be the proper procedure, I let mine idle for about five minutes, then I rev the engine to between 1500-2000 revs for about 30 seconds, then I let it idle for another two minutes, then I drain it.

On another note, my Autolite Platinums are showing no signs of oil burning, just a nice soot-free, light tan coloring. I only have almost 3500 miles on a synthetic blend oil change, so the engine has had plenty of time to develop oily deposits prior to that. BUT, I will not rule out oil burning, although I can doubt that due to the amount of oil usage.
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Unread 05-15-2014, 12:25 PM   #24
remmons
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Quote:
Originally Posted by pentastarguy View Post
can you put some dye in the oil and then check for leaks when you add the next quart of oil?
I would love to, IF I had SOME kind of signs of leaking. But as you may or may not have read in one of my earlier posts, I have used a sheet of card board under it for a full night, I have also parked my Jeep on clean pavement and concrete, and I still have no signs of drips or any wet areas on my engine, transmission, or skid plate.
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2002 Liberty Sport 3.7. 2.5" lift.

I am by no means a professional. I know just enough to get myself into trouble.

http://www.jeepforum.com/forum/f12/i...t-case-989208/
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Unread 05-16-2014, 07:51 AM   #25
remmons
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Mystery solved! I have no idea how I could have missed this during my underside inspection, but while changing out my oil last night I had found where my leak is, it's coming out from the lower part of the timing cover gasket. This is strange that I haven't seen any oil drips though, so it must only occur when the engine is running. I will do what I can to repair that leak when the time becomes available.
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2002 Liberty Sport 3.7. 2.5" lift.

I am by no means a professional. I know just enough to get myself into trouble.

http://www.jeepforum.com/forum/f12/i...t-case-989208/
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Unread 05-16-2014, 09:23 PM   #26
streetglideok
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Most oil leaks do not leave spots on the ground. Dirt and wind soak it up and blow it backwards. When you start seeing spots, its a bad leak.
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Unread 05-17-2014, 01:04 PM   #27
remmons
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Quote:
Originally Posted by streetglideok View Post
Most oil leaks do not leave spots on the ground. Dirt and wind soak it up and blow it backwards. When you start seeing spots, its a bad leak.
But usually there are signs of oil leaking by build up on surrounding components, and there is none at this point. BUT, I haven't removed the skid plate to see if it could be building up and soaking into the sand and dirt. That job will be performed this weekend.

On another note, I had performed an oil change with air filtr and spark plugs. All six plugs looked great, except with one (#5) having some white soot build up. But all of the plugs were Autolite Platinum AP3944, and they all gapped out at as follows; #1 .041, #2 .041, #3 .041, #4 .041, #5 .040, #6 .042.
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2002 Liberty Sport 3.7. 2.5" lift.

I am by no means a professional. I know just enough to get myself into trouble.

http://www.jeepforum.com/forum/f12/i...t-case-989208/
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Unread 05-20-2014, 08:49 AM   #28
mefish
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1987 YJ Wrangler 
 
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I have also read that there was a TSB on the oil filler assembly for high oil consumption. I just discovered that my 02 is going through oil really fast too. Thanks for the tip on the timing cover, I'll look that area over. I have the typical valve cover drip but that is like one drop a week but we went thru a half quart driving like 140 miles yesterday.
Definitely going to have to chase this issue down.
Let us know if you find anything more.
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Unread 05-20-2014, 09:12 AM   #29
remmons
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Location: Vernal, Utah
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Quote:
Originally Posted by mefish View Post
I have also read that there was a TSB on the oil filler assembly for high oil consumption. I just discovered that my 02 is going through oil really fast too. Thanks for the tip on the timing cover, I'll look that area over. I have the typical valve cover drip but that is like one drop a week but we went thru a half quart driving like 140 miles yesterday.
Definitely going to have to chase this issue down.
Let us know if you find anything more.
Thanks for the tip!
__________________
2002 Liberty Sport 3.7. 2.5" lift.

I am by no means a professional. I know just enough to get myself into trouble.

http://www.jeepforum.com/forum/f12/i...t-case-989208/

Last edited by remmons; 05-20-2014 at 02:49 PM.. Reason: Removed redundant info.
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Unread 05-27-2014, 03:49 PM   #30
remmons
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Location: Vernal, Utah
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To my dismay, I still am going through oil the same as before the crankshaft seal replacement. I have went through 1.5 quarts in three fill ups, and there's still no evidence on the ground or the under carriage. Back to the drawing board.
__________________
2002 Liberty Sport 3.7. 2.5" lift.

I am by no means a professional. I know just enough to get myself into trouble.

http://www.jeepforum.com/forum/f12/i...t-case-989208/
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