Hi Guys,

I need to ask a question:

But first some background . . . .

A friend of my son's got stuck this last Sat & I had to help pull him out. Well, it was not quite that easy, He had a F150 club cab LONG bed 4x4 sunk to the doors in the bottom of an old pond.

It took my d-max 4x4, a Dodge diesel 4x4, and a Chevy Z71 6 tries to get him out. We worked from 9:15 am to after 1:00pm to get him out. I broke a 3/8" chain trying to jerk him out & never moved him by myself. I was running in 1st & 2nd gear with the tach around 25 – 2900 rpm’s for most of those tries.

Anyway . . . . I tell all of that to illustrate how hard we were working these trucks. My problem is later that afternoon; I got a low oil warning on the DIC. I had to add a little over 2 qts of oil. I checked out the truck & could not see ANY visible sign of oil leak or blow by. Admittedly, I do not know where the engine oil blow by tube is on this truck, but I don’t think I could miss 2 qts of oil! I saw no evidence of oil under the truck & believe me I looked over the bottom of the truck good! My buddy with the Dodge said I was not burning any oil & this is the 1st time in 23K miles I have had to add so much as a pint of oil.
As a side note, since I added the oil back, I have not had any more issues in the past 4 days & the oil level is stabilized just fine.

I tell you all of that just to ask this:

Is this a blow by problem on my truck, or does this sound normal? Will we have to worry about this every time we tach these trucks up & work them hard? I know I was working the truck very hard, but it does not seem any worse than someone running a ¼ mile on the strip & I have not heard of this happening to this degree before.

Any theories / comments / suggestions?

Thanx,
PDS

Here is my .02


If you were trying to pull him for extended periods of time you were building a lot of heat in the engine and transmission. With no air flow to the radiator or past the engine, ( except when the fan comes on ) it doesn't take long for temperatures to climb. I see your from Texas so one would assume warm temps above 70 Degrees. All these things combined may have caused the block to get much warmer than normal operating temperatures. This may have caused enough difference between the cylinder walls and the piston itself causing some oil consumption even though it may not have been noticeable. Just think of 2500-2900 RPM'S on a very hot block with no moving air around the engine, ( exhaust getting very hot transmission getting hot ) and all the heat heads right to the top of the hood being trapped under there.


These are some of my thoughts...... at what temp does diesel fuel ignite under combustion in a diesel? I think?? around 1400 Degrees.


1400 degrees @ (2900 RPM'S X 6.6 Liters) = 19,140 liters of heat at 1400 Degrees PER MIN. I am sure if this is correct, but I am just trying to give you a visual of how much heat was created.


My own personal thoughts would be to get that oil out of the engine as I would bet anything it has been compromised by all the heat introduced into the engine.


Did you pay any attention to the temp gauges? Oil? TRANS? You may want to change the Transmission fluid if it got hot as heat destroys it very quickly. I would if the temps approached 250 Degrees


In ending, what has been done to the engine if any thing. Maybe nothing at all, but some cylinder wall wear may have occured due to the high temperatures.


As stated above at least change your oil for sure and then you can monitor it to see if there is any consumption. My thinking is there won't be, but time will tell.


Let us know your results. Sorry for the long post. Here again just my .02 Fran

Where you on a strange angle for an extended period of time?

Are you sure it was full after the last oil change? IMHO no kind of operating condition you should have encountered should explain the loss of two quarts of oil.

No way you lost that much oil and didn't notice.


My guess is low from the last change because for some the dipstick is a challenge to read.


Who did the last change?


I'm guessing it was not you because if you are reading this you know how many quarts to full!


Blake

Now that I think of it we hold 2 gls. and two qts.. Maybe who changed the oil last forgot the two quarts?

Wel, you could tell him to get stuck again, and reenact the tug in....http://www.dieselplace.com/forum/smileys/Big Smile.gif

Was his dog driving like on the Geico commercial?

Hi Guys,

I need to ask a question:

Is this a blow by problem on my truck, or does this sound normal? Will we have to worry about this every time we tach these trucks up & work them hard? I know I was working the truck very hard, but it does not seem any worse than someone running a ¼ mile on the strip & I have not heard of this happening to this degree before.

Any theories / comments / suggestions?

Thanx,
PDS



Did you check your oil before hand?


Iwould bet it was down almost 2 qts. from the last oil change.

Silveradog running with one oar in the waterhttp://www.dieselplace.com/forum/smileys/Ermm.gif LMAO


Geno

OK,
I can see some more detail is in order . . .

1) This was the only weekend we had snow this year. (4" of snow on the ground) Outside air temps between 29 & 33 degF. Oil temps never went above 225 F (I have an oil temp guage), Trans temp never above 220 F baised on the dash gauge, engine temps normal also. EGT's with the quadzilla 110 were around 1400F for a very short time, but nothing unusual.

2) I did not pull on him for 4 hrs straight. A lot of that time we were trying to re-hook in a diffent way, or going for more chains/straps. At the end we had about 250ft of chain to get out of the mud enough to pull him out.

3) I was not at a severe angle at any time. slightly nose up pulling up a hill for a while, but nothing very bad. Just mud axle deep everywhere!!

I checked the xmsn fluid & it is still nice & cherry color and does not smell burned, so I know that it did not get too hot.

The engine oil is a normal black color, and does not smell burned. The dipstick looks normal (new/clean looking) with no burnt oil brown spots.

I am running Amsoil 15-40 synth with a bypass system. I check the oil every week to 10 days & have never used oil. I change all of my own oil & the last oil change was 6K miles ago. Less than 5 days earlier, I checked the oil & it was at the top of the range. Just like always. Granted I did not check oil just before I went out there, but historical data over 24K miles indicates that this truck does not use oil over time.

This may be just an anomoly, but I would still like to know where the oil went???? THe only thing I can think of is blow by, but where . . .no visible signs under the truck???

Nothing like a good puzzle! I appreciate the responses from everyone & I am just looking for suggestions as to what happened or if anyone has had this happen before!

Thanx,
PDS

Whatnot,

I guess it was kinda like the gieco commercial!

They were out in a pasture playing in the 4" snow in 4wd. & came up on a "dried up" pond. ONLY 6" of water/slush in the bottom of the silt bed.

My son was with him in his own truck, and he told the other boy there was no way he would try it!

The kid that got stuck just decided to "get a run" at the mud hole. Typical . . . enough speed & you can get out far enough no one can get you out . . . . he almost did'nt get out!

The comment that was going around among the men trying to pull him out was: "He was ate up with the dumb a$$" to try a stunt like that!

"He was ate up with the dumb a$$" http://www.dieselplace.com/forum/smileys/HiHi.gif It's been a while since I've heard that one.


I recall someone posting a while back about a bad o-ring in their bypass filtration system. I think that is what his problem was. Could this be the culprit? Just trying to throw out possible causes for you. I would think if you were burning that much oil, you would be able to see/smell it out the exhaust.Edited by: flhrciblueice

The only time I have seen excessive oil consumption in an otherwise healthy engine was when the viscosity was too light. As I'm not familiar with the Amsoil oils I don't have a clue what caused it or where it went, but the only place that I think it could have gone was out the tail pipe.

Aggie91


Your blowby tube is at the front of the motor and it comes out near the bottom of the oil pan and it points straight down towards the ground. If you were working the motor hard and getting excessive blowby it may of just been coming out the tube and hitting the ground. Only if your moving down the road does it get splattered back on the underside of the engine and truck by the wind and make a mess. So it could of been coming out the tube with no real indication on the underside of the truck.


My .02 Diesel Draogn

Thanks guys,

I will check the o-ring & find/look at the blow by tube. I will let you know what I find.

PDS