I had the relocate done mentioned in the TSB. I am happy with it and don’t need to clean the oil and crap from my radiator any more. This relocation does not cause the bottom of the truck to be coated with oil either.

 

It's not so much draining the bottle that bugs me, it's the unbelievable mess the vapors make on the lower part of the engine and cover. I mean, who at Cummins thought that was a good idea? At 30K, I had a gritty, oily coating all over the front of my engine. I decided to remove the bottle, and extend the hose down and rearward. It's presently tie wrapped to the lower trailing arm(?) on my 4x4, just about under the driver's door. The occasional drip on my driveway seems to have minimal effect on the surface.

 

I have a gravel driveway and park on dirt at work so it's kind of hard to tell. I park in the same spot all the time and I don't see any accumulation.

 

Took mine apart today (since I am new to Diesels I have been in the habit lately of taking things apart to see how they work). What a Crappy design, I have ha toys with higher quality plastic than that.

I think I am going to reroute like alot of you have.

Question though, did you folks simply use standard heater hose for rerouting or did you use some kind of "special" hose?

Dan

 

Good old fashioned heater hose.

 

Need to do the same thing to mine (re-route a section of hose further back). Stupid little nut musta come loose so gravity took care of the bottle for me, it ratated so the bottom of the bottle was rubbing on the harmonic balancer.... nothing on the front end can possibly rust now, everything has a heavy coating of oil. Patched the bottle up with RTV and its holding, but I still leave little oil puddles on the garage apron and my parking spots at work. I'm figuring about a dozen drops a day so nothing I'm too worried about.

We'll see what happens afterwards with the hose extension and a good run through with some degreaser and a power washer.

 

By chance what size is that you used...???

I got a wild idea to try...I'll let you all know how it worked...!!!

 

It wasn't Cummins, but Damlier/Chrysler who worked out this brilliant bit of engineering- just like D/C's engineering of the faulty lift pump location.


For those of you located in freezing weather areas, don't extend the tube TOO far back on the truck. The water vapor in the blowby will freeze and plug up the tube. NOT good for the engine seals when the crankcase doesn't vent!

I run mine straight down and just behind the front axle tube. Blows good all winter long!

 

3/4" is the size you need. I'd be very interested in your idea. Let us know what you find out.

Also roadranger brings up a very good point. The reason for the tube is to vent pressure in the crankcase. If you run it too far you are adding restriction and that can do no good. I think if you go any further than 3' or so you are asking for trouble.

 

Well the idea I've got is that if the front is the problem then what is wrong with routing over the top of the engine and dropping back down in the back (around the flywheel area). But the change is using copper pipe (3/4") for most of the run. It would stay warm for the winter (from engine heat) and will not kink or valley up on you. As for why the run over the top? Like a snowmobile they run the fuel / oil vents the same way. This is to prevent the oil from spilling on the steep downhill, uphill or roll over... Last that I checked the tube would run uphill compared to downhill angle and prevent the the spillage.

I will get some picture of the design and see what happens here soon.

The problem with what I see with current methods is that steep downhill will still vent large quantities of oil but not on the front of the motor.

I got to run steep grades in the forest for firewood every year. Breakout with the 4WD HI or LO... Time to work!

Give me a lillte time I will design something here quick!

 

Don't forget the 3/4" inline splice connector when you pick-up the hose. If DC thought up this brilliant design, where does Cummins put the breather on the standard ISB engine?

 

If I were you, I'd just go and get the TSB done for resolving steep incline issues.

 

Basically it put the breather on top of the valve cover in the back...

It seems to be a poor idea since the early... I haven't actually seen one yet but from what I've been told about the 12V engines had the vent in the back of the block (somewhere?) and had the reverse problem... Going up hill would spill oil out. Not as much but still would...

The whole crankcase vent design is poor idea by both Dodge & Cummins for these trucks...

 

On the big truck engines the vent comes out of the top of the valve cover and then runs to the side, back or wherever then down The only way a lot of oil could spill out of them then would be if they were on their top. I think then you would have a little more to worry about.

You're right about the location on the 12V. They are on the left side of the block about 1/2 way down from the top and about 2/3 the way back on the engine.

 

I made my 01 like my 94 was. Bought 5 feet of 1" (3/4" ID) clear plastic hose. Removed the "stinkin bottle". Cut 4" off bottom of existing 1" formed hose, used 3/4 male connector and ran the hose back of engine mount and starter. Cost was about $7.

The bottle never collects much because it gets blown out into the radiator and front of the engine before it can condense in the "bottle". In cold weather is when the most mess was made. I never did notice my 94 making a mess of drips on the driveway and I had it 7 years.