About 2 weeks ago, I posted a forum topic about burring oil in my 92 Dodge. I have found out a few things in the last week. First I do not think it is burring oil, I looked under the truck and find that, even thou there is not dripping oil, it looks like a lot of oil is being splattered under the truck from what I think is the breather hose that comes out next to the fuel filter. Does anyone have experience with what I am talking about? Is dripping oil from this breather hose an indication of what may be wrong with my truck? ( pinging and low milage)<br><br>The thing that confuses me is that the truck runs very good after it is warm, I see no smoke after it is warm, It seam to have plenty of power. If I had a bad piston or rings I should be burning oil, seeing black smoke and having low power, right?<br><br>The suggestion was made that I may be getting oil into the fuel, I took a sample of fuel and find it to be very clean. So can I assume that no oil is getting into the fuel? I figured that the fuel would be dirty from the overflow fuel that is returned to the tank, from the injectors.<br><br>Thanks in advance for any suggestions you all may have on this issue. <br>Howard

 

I'm not claiming authority on this subject, but I will put my 2 cents in since I think I read that last thread also.
All of the Cummins have the breather tub coming down, in different places. If you do have a piston or valve problem it will build up more pressure in the crankcase and more gas will flow out that hose. It will likely carry more oil with it, but it really shouldn't be much.
As far as the oil being sucked into the fuel. How did you obtain your sample? Again, not claiming authority here, but it may only be occurring when you are at higher RPMs and when you obtain the sample, engine either not running or at an idle, the oil in fuel problem is not occurring, and has not occurred, for a signifcant circulation of the fuel so if the oil ever was in there, it has been washed out by the time you get your sample. And, if it is higher RPMs causing this the engine may be using enough fuel that it isn't returning enough oil contaminated fuel to the tank to be noticed.

I'm sure someone with more experience will chime in, but those are my ideas.

Chris

 

Howard,<br><br>I just sent you an e-mail on this subject.<br><br>I suspect that the drooling is from your road draft breather, and would bet it can be traced to a leaky transfer/lift pump.<br><br>When the lift pump starts pushing diesel into the crankcase, it causes the truck to drool oil and fumes from the road draft tube like a two year old cutting teeth.<br><br>The same is true for the second generation 12 valves too.

 

An oil analysis will show fuel contamination in the oil without a doubt. For $20 it's well worth the price, assuming you haven't had a detailed analysis done yet.<br>As you uprate the 1st Gens they have a tendency to push a bit of oil out the breather. There was a post about this, and the way to check whether it was &quot;normal or excessive&quot; but darned if I remember were. I'll try to find it.<br>Also, you may want to pull your rocker covers, check your valve set. If you have a vavle(s) that are too tight then you may be pressurizing the crankcase, to some degree, and forcing oil out the breather tube. <br>On my 1st Gen, if I get a little wet 'N wild with it, I see more 'blowby' for a bit. I even have an occasional drip or two on the end of the breather tube. Never any puddles on the ground though. It usually gets blown back onto the bell housing and front edge of the tranny pan.<br><br>Just a thought...<br><br>Bob.

 

I am beside myself. :'( :'( <br><br>I took my truck into Cummins, they pulled the oil pan and the head. They found that the #1 piston has serious problems. Bad scoring of the cylinder walls. They want $7,165 to fix it. They will put a new rebuilt engine in from Cummins for $8,884. <br><br>I had no idea that pulling my 18 foot Bayliner at 60 miles per hour up the canyon would push this engine to destruction.<br><br>I am looking for an engine used or rebuilt that is cheaper that what Cummins will do it for ($5,300 for engine + labor+ tax + diagnostics= $8,884) This is must way over what I can do at this time. So if anyone has a lead on an engine please let me know.<br><br>Thanks,<br>Howard

 

I have an '95 cummins engine block, crank, rods, caps, and head from a '95 3/4 4x4 manual truck that I'll sell you. You'd just have to buy the new pistons, seals, and bearings for the assembly and switch over all your parts from your current engine to the new one. Unless you're paying someone to do the work.. that'd just cost too much. But if you're doing it yourself it'd be a cheap route.

 

Sorry about your engine meltdown some times you can find pull out motors on e-bay

 

I found a whole bunch of them on www.car-part.com, varying prices.<br><br>Chris