Oil in Intake how much is normal?

[perryg114]

Originally Posted by niterydr

What do you plan on "marking it" with?

I am not sure but I know it can be done because anyone that balances these things has to take the shaft off and balance the assembly out of the center section. It them must be taken apart and put back into the center section. If you have any suggestions as to how to do this I would be grateful.

You do realize that turbochargers spin at 100K+rpm and any slight imbalance/imperfection/miss-adjustment will send it apart quickly.

Yes I am an aerospace engineer I am familiar with turbo-machinery. I am assuming that if I can keep the turbine and the compressor properly clocked that I can maintain the factory balance.


The average shelf life on an OEM turbocharger is 100-150k miles. After that bearings and seals usually need replacement. I would suggest to find a low mileage 14b, a new turbo, or send it to someone that does quality, reputable rebuilds.

Finding the latter is hard to do.

On a side note, John was not trying to sell you a turbocharger. If he would have posted "Buy an Evo 16g from us for $569.00 plus tax", THAT would have been trying to sell you a turbo. He was mearly providing information and an answer to your question.

Sorry, I am pretty good with mechanical things I earn a living at it. I am not a turbo-charger expert but I am pretty competent with most things.

In and out movement (on a journal bearing turbo) indicates thrust bearing wear. Slight side to side wear is normal. The amount of oil inside the center section can really effect how much "load" is felt.
If your crank case system is in check, you might have to look at the turbo for possible signs of seal failure. Are you still running the valve cover breather into the intake?

Yes everything is stock should I change something to reduce oil consumption?

The turbo has a good bit of side to side play on the compressor side but very little axial play (in and out) and very little play on the turbine side. The turbine and compressor are in good shape and nothing was hitting the scrolls. The turbine does not look eroded at all. I am a little concerned about there being more play on the compressor side than the turbine side that has a much harder life.

Perry