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|All Messages in Thread||Author||Date|
|5.9 ISB Cummins oil Leak||Pat Padgett||10-25-02|
|I own a 1998 Itasca Motor Home with a Cummins Diesel Engine. I feel that there is way to much oil escaping from the Block blow by tube. I have called Cummins hot line and have talk to them about the problem and we have discused over filling the engine with oil and I personnel have changed the oil and have counted the quarts. Also I have had Cummins Midstates Dyno the engine and they say that their nothing wrong.I have heard that the Exhaust Brake can cause over pressure in the engine block does any one out their know about this or anything else. The back end of my MH looks like a Corvair.|
|Re: 5.9 ISB Cummins oil Leak||Joe||10-25-02|
|Where does your vent tube enter the engine?|
|Re: 5.9 ISB Cummins oil Leak||Jim||10-30-02|
I have a Bounder diesel with the Cummins ISB, it also puts out a spew of residue all over the back of the unit and of course all over the front of the towed vehicle. I do not believe that this problem is unique to you or me. In my talks with others with this engine, it seems to be universal. If you oil level doe not decrease significantly during a run then I think you may have to live with it or trade for a gas unit.
|Re: 5.9 ISB Cummins oil Leak||Pat Padgett||10-26-02|
|Valve Cover. I believe, that the hose leaves the seperator from the valve cover and then straight down the side of the engine block next to the oil pan. I have been talking to Cummins Midstates and they now tell me that the problem is with pac Brakes not Jake Brakes which they tell me that I have ? They also tell me NOW after complaing that Their is a improved Seperator which they have ordered and will install. I have only 6 Months left on warranty and appreicate any info I recieve. I'am hoping this will take care of the oil spitting out the back of my MH.|
|Re: 5.9 ISB Cummins oil Leak||Pat Padgett||10-31-02|
I called the Cummins Engine RV Hot line. and they told me that their should not be more than 2 drops of oil coming from the blow by tube, in a weeks running. Cummins Midstates of Indianapolis In. contacted Cummins and they took of my oil seperator and replaced it with a updated front mounted block breather total different than want was installed back in 1998. I hope this works.
|Re: 5.9 ISB Cummins oil Leak||TOM||11-2-02|
|I had the same problem with my 1992 Rockwood with the 5.9 Cummins engine. Thought the engine was bad. The problem turned out to be a vacumn created uder the coach when traveling. It is agravated by the rockgard on the rear of the coach. After I extended the breather tube to the rear corner of the coach there has not been one drop of oil coming out in hundreds of miles. The underside rear of my coach is now dry for the first time in 60k miles. Hope this helps!!|
|Re: 5.9 ISB Cummins oil Leak||jim||4-7-03|
|I had a 2001 pickup with 5.9 and it had a plastic bottle that the drip tube drippings went into, and each time it was serviced you were supposed to empty it, if you didnt it would blow oil all over the bottom and rear of truck. dodge didnt have it on the 1998.check at dodge truck dealer and look at the bottle not hard to put on, it hooks to front cross member,it would work on motor home as well.|
good luck jim
|Re: 5.9 ISB Cummins WATER IN OIL||MIKE Z||3-26-09|
|LOW WATER LIGHT CAME ON CHECKED WATER, LOW NO SIGNS OF A LEAK. DROVE 400 MILES, LOW WATER LIGHT CAME ON AND FOUND WATER AND OIL MILK COMING OUT OF BLOWBY TUBE..|