ROBERTS11260,
With about 60 some odd kits out there, there has not been a single complaint or problem with the oil cap Tee venting system the kit uses. Most all of the cheap quick fixes and even the more comlpicated pipeing hook ups folks have come up with usualy do not address the steep grade oil dumping of the OEM design. The kit takes care of BOTH issues.
Be Well
Bubba.

 

My design covers this problem...


I've never lost any oil out off-roading. I use my truck to bring in over 12-15 cords of fire wood every year so yes I do some extreme off roading to get to the wood. My set cost all of $7 bucks to build... Don't freeze, spill, plug, rot, go soft (like rubber hose)... and was certified by my dealer!

 

I used the same layout that Mopar1973man used except I painted the pvc black. I even used the clear reinforced hose from Lowes that he used. It has worked great for almost a year now. I have never seen any thing but vapor come out of the drain hose back by the trannny. i already had the pvc so it only cost about $4 for the hose from Lowes.

 

Pics? What "kit" are you refering to?

dan

 

Seems like a bad idea,don't wanna pump exaust into the crankcase.
and since there is more pressure in the exaust pipe than the crankcase then thats what I assume will happen...you know what they say about assumeing.

 

OK, so your pipeing appears to be doing what you want it to do. I personaly see your particular design creating elevated crank pressures on a steep down grade simply because once the gear case vent hole is overwhelmed with oil, piston ring blow by has no where to go. If you were on steep grade long enough, oil will most certainly seek a way out your vent pipe. Its just common sence! even if its a bit on the **** side of reality for the most common case senarios. A vented valve cover in combination with the OEM vent will NEVER ,even theoreticaly,alow crank pressure to become blocked off unless you set the engine up side down! If I'm going to take time to RE design something, I tend to work toward full filling the most exstreme requirments possible. Whats "good enough" is a personal preferance. For 7 bucks your set up is certainly better than OEM. But as roberts can probably tell you my vent kit goes to the extra mile in venting. AS it should, since its 5 times more costly.

 

So your going a bit more extreme...

Basically it was the idea of if the nose of the truck was to head down a steep hill the vent tube would be highier than the oil level at all times... Which it does for me... I never had a problem with crankcase pressures being so high that it was blowing out oil... But I was spilling oil out at a high rate into the fan which made two problems... A plugged radiator (overheating) and a lack of oil in the pan.

So my idea is just a simple fix to a generic problem to the 2nd Gen's... I've seen several idea including piping into the exhuast behind the turbo, drilling a hole in the valve cover and installing a chevy oil breather, extending the vent to the transfer case by hose, etc...

I glad you found a cure that fits you needs...

 

Even if on a steep down grade the vent was covered by the oil level, the crankcase gases will still get out it will bubble out through the oil, just like exhaling underwater while swimming.

 

Sorry, but I have to disagree with you on this issue. Once the oil level becomes higher than the gear cover vent hole, the building air pressure above the oil line will force the oil up the vent pipe even if the pipe goes straight up to the roof of the cab! Remember bubbles travel only in a upward fashion, not down into the oil to find the vent hole which would be below the oil level of the engine while at steep down grade.

Zukgod1,
check my gallery photos for a picture of the vented oil fill cap and the drip bottle fastened in place on the trans by a clamp that fastens only the bottle cap firmly. this way you can easily unscrew the drip bottle for inspection, keeping the OEM drip control bottle in the system.

 

I got to ask how far can you go before lossing the oil pick up in the bottom of the pan. If you tilt the nose of the truck down hill at one point or another the pick at the rear of the engine is no longer going be able to pump oil (lose of oil pressure) At one point or another there is going to be a maxmum tilt these truck can handle...

 

A couple of years ago, I remember reading a post on TDR that mentioned the Cummings spec on maximum engine pitch, unfortunately, I don't remember the degree spec mentioned. What got me going on this was a couple of posts from off roaders that made the complaint of loosing oil by the quart'S. Just how radical these guys are driving is any body's guess! Apparently they didn't suffer engine problems at the time as one might think.