Engine/Transmission (1994 - 1998) Crankcase (blowby)routed into turbo inlet?

[Fordiesel69]

International routes their blowby gasses into the intake side of the turbo and allows it to be reburned. It certainly makes a mess of the intercooler and piping but at least you can't small the blowby. Would any adverse effects arise if I capped the road draft tube, installed the oil filler tube that has the nipple on it and routed the hose to the inlet of turbo? Would the oil vapor cause concern with the heater grids possibly starting a fire? Or would it just not have enough volume to pull the vapors?

 

[Gary - K7GLD]

Other than the oily mess on the turbo vanes you already mentioned, conditions of excessively high blowby might create an engine runaway situation. There would also be a very real potential for oily residue to coat the insides of the intercooler, seriously compromising it's efficiency.



*I* dern sure wouldn't do it!

 

[Forrest Nearing]

if the oil vapor falls out of suspension it will erode the compressor wheel, in pure vapor form it will coat/fill the intercooler reducing its efficiency, and I've got to imagine that carbon buildup in the cylinders will be increased.



I wouldn't mess with it

 

[CSnyder]

is the smell the only reasoning behind your thoughts?

 

[Skydiver]

On my new N/A Kubota ztr mower the blowby is piped into the intake. When the warranty runs out I might route it back to the atmosphere.



On an old Mercedes 300d N/A non-turbo diesel I once owned the blowby was piped into the intake manifold. When I looked inside of the intake it looked like pure sludge. Real nasty.

 

[PToombs]

Brand new Case payloader, 6. 7 case/cummins engine, 285 hours on it. The blowby is routed from the valve cover back into the inlet before the turbo. The boots to the I/C are seeping oil already. We have 2 doing this that we have seen. Not good, IMO. Case says it's normal.

 

[DPashko]

I routed my vented valve covers into my turbo down pipe so it is sucked out and somewhat burned in the exhaust. All of our industrial sized ingines at work have these venturi tubes rigged up this way. I have pretty much no oil come out of the regular vent on the drivers side, seems to work fine, no issues yet.