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lwasouth · 07-11-2012, 03:37 PM

I recently posted that I had a major engine problem with a cracked head (Caused fuel rail to leak fuel into valve spring area of head and then to oil pan) Aside from oil showing high on stick and oil pressure reading low, I was blowing excessive oil out the breather. After the repair, the oil was drained, but decided filter was OK because it had less than 1000 miles on it. Filled with 19 qts of 15W40 oil. Engine continued to blow excessive vapor out the breather for aprox. 600 miles. After that almost no breather vapor. Vapor was caused by fuel in the oil even the small amount left in the filter. Conclusion: If you change your oil and filter and your engine breather does not blow excess vapor, but after 500 to 1000 miles it starts expelling vapor, you most likely have fuel entering your oil. (leaking injector, leaking bulk fuel pump or like me a small crack in the head

ninos · 07-11-2012, 08:12 PM

I think your problem was that if don't change the filter you can not put 19 quarts because the filter is full and the filter probably takes around one quart so my have been one quart over the right level and when it it sprayed out the one quart in the first 600 miles it stopped because the level was good, that's just my tought doesn't mean that I'm right. Joe

bob109 · 07-12-2012, 05:07 AM

Quote:

Originally Posted by ninos

I think your problem was that if don't change the filter you can not put 19 quarts because the filter is full and the filter probably takes around one quart so my have been one quart over the right level and when it it sprayed out the one quart in the first 600 miles it stopped because the level was good, that's just my tought doesn't mean that I'm right. Joe

I have to agree with you on the "over fill". Cats which have a 19 qt. oil pan seem to "puke" any amount of oil over the 19 qt. level. The 1R1807 high efficiency oil filter, which is the recommended filter, is large enough to hold a quart of oil by itself. If one opts to change "oil only" then the correct amount of oil to add would be only 18 quarts.
When I performed the first oil change to my 3126E I installed a new filter and 17 quarts of oil. Started the motor and let it idle for a minute or so then shut her down. Checked the dip stick and the level was low. Added one additional quart and the level was still low on the stick. Added the last quart and the level was right on the full mark. I've affixed a tag to the oil fill spout which states 19 qts. as a reminder.
I've added a slobber tube extension with "catch/capture jar to my unit and after several 1k plus trips the jar collects a tablespoon or two of oil but nothing above that.

lwasouth · 07-12-2012, 07:08 AM

Quote:

Originally Posted by bob109

I have to agree with you on the "over fill". Cats which have a 19 qt. oil pan seem to "puke" any amount of oil over the 19 qt. level. The 1R1807 high efficiency oil filter, which is the recommended filter, is large enough to hold a quart of oil by itself. If one opts to change "oil only" then the correct amount of oil to add would be only 18 quarts.
When I performed the first oil change to my 3126E I installed a new filter and 17 quarts of oil. Started the motor and let it idle for a minute or so then shut her down. Checked the dip stick and the level was low. Added one additional quart and the level was still low on the stick. Added the last quart and the level was right on the full mark. I've affixed a tag to the oil fill spout which states 19 qts. as a reminder.
I've added a slobber tube extension with "catch/capture jar to my unit and after several 1k plus trips the jar collects a tablespoon or two of oil but nothing above that.

Sorry - I mis-stated the amount of oil - They only added 17 quarts of oil. The dip stick was also previously calibrated and the oil was at the right level. You missed the point of the whole post! It is that if you get any fuel in the oil, you will get excessive blow-by.

bob109 · 07-12-2012, 10:16 AM

Quote:

Originally Posted by lwasouth

Sorry - I mis-stated the amount of oil - They only added 17 quarts of oil. The dip stick was also previously calibrated and the oil was at the right level. You missed the point of the whole post! It is that if you get any fuel in the oil, you will get excessive blow-by.

Regardless of the kind of liquid in the pan, be it all motor oil, or a mix of diesel fuel and motor oil as you described, any quantity above 19 qts. will cause excessive "blow by". Folks who mistake the 19 quart oil pan for the 22 quart pan and overfill by three quarts find their TOAD covered with the excess. In your case the overfill condition was was caused by fuel oil entering the pan which would change the viscosity of the motor oil and raise the oil level above 19 qts. I believe that is the point you were trying to make:>)

lwasouth · 07-20-2012, 09:12 AM

When oil was last changed, and filter was not changed (Because it only had 300 miles on it since last change) 17 quarts were put in. Now, after repairs no new fuel was entering the oil, but the filter had a small amount of fuel in it,s 2 quart capacity. Until this small amount of fuel was discipated, the engine had excessive blow-by. In about 75 miles after clearing the fuel from the oil, no more blow-by.