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Old 11-26-2012, 06:31 AM   #1
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oil blow-out 04' holiday rambler endeavour

rear oil blow-out while on road.....ideas???....bill
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Old 11-26-2012, 06:35 AM   #2
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Sorry about your trouble, blowing from where and how much?
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Old 11-26-2012, 06:47 AM   #3
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There are many threads about this subject.Have a look on previous posts. Cheers Gerald
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Old 11-26-2012, 07:06 AM   #4
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can't find other threads

locating threads????
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Old 11-26-2012, 07:08 AM   #5
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Originally Posted by jwilliam3990 View Post
rear oil blow-out while on road.....ideas???....bill
I thought that had been solved by 2004. That said, look for posts on "slobber tubes" and you'll get ideas on how to make and install one. I did it on my 2001 Diplomat and it worked. Otherwise make sure you or your shop is not overfilling the crankcase with oil. The dip stick is not always 100% accurate. You may find that the oil level will go down to a certain point and then no further. That's a sign that your engine is blowing it out as opposed to burning it. No use in adding oil to bring it back to "full" if that is the case.

FWIW
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Old 11-26-2012, 11:18 AM   #6
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rear oil blow-out while on road.....ideas???....bill
one will assume it blows out from the engine breather blow by tube??
U never indicated? How much? when? what motor? like what rpm and engine loads etc
I had a 2002 cummins ISC do this under heavy load.I extended the tube down into a container and left it 1 quart less than spec and seemed to solve any problems
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Old 11-26-2012, 05:12 PM   #7
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The ISL engine in my 2004 American Tradition began blowing the oil filler cap off and spitting out oil one day. It was getting near time for an oil change anyway, so I changed oil and filter and also got a new filler cap, since the old one had been stretched a bit. The problem went away, but I sure wish I knew why! I keep fearing it will come back some day (but its been two years now).

This engine (and yours too) has an open crank case (slobber tube), so it's hard to imagine crank case pressure building up enough to blow off the cap.

Mine also doesn't like to have the oil up to the "Full" line. it works itself down to 2 qt low and stays there (60k miles now). I presume that oil goes out the slobber tube, since I see no evidence elsewhere.
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Old 11-28-2012, 08:27 PM   #8
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oil freeze plug out on engine block...18 quart dump...cummins says construction error
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Old 11-28-2012, 11:12 PM   #9
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Why would an oil passage have a freeze plug? That seems odd to me.
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Old 11-29-2012, 05:57 AM   #10
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seems the access holes are block construction ports which have plugs as seals
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Old 04-17-2013, 12:14 PM   #11
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Originally Posted by Gary RVRoamer View Post
The ISL engine in my 2004 American Tradition began blowing the oil filler cap off and spitting out oil one day. It was getting near time for an oil change anyway, so I changed oil and filter and also got a new filler cap, since the old one had been stretched a bit. The problem went away, but I sure wish I knew why! I keep fearing it will come back some day (but its been two years now).

This engine (and yours too) has an open crank case (slobber tube), so it's hard to imagine crank case pressure building up enough to blow off the cap.

Mine also doesn't like to have the oil up to the "Full" line. it works itself down to 2 qt low and stays there (60k miles now). I presume that oil goes out the slobber tube, since I see no evidence elsewhere.
Sometimes in cold weather the bottom of the tube will freeze up from condensation & temporarily block the tube then blow out the oil through the path of least resistance.
Bob
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