Chrysler Repair: oil consumption dodge 2.5L 1991, exhaust system components, dodge daytona

Question
HELP; I have a 1991 Dodge Daytona with the 2.5L engine. I had low compression and had the head rebuilt. Opon installing the head I have 120 psi compression on all cylinders.But when I rev the engine up to 3000 rpm the car blows blue smoke. I have replaced the PCV valve and this did not help the problem. What do you think my best course of action would be to solve this problem?

Answer
Hi David,
You might try re-measuring the compression after adding a teaspoon of oil to each spark plug hole before you check that cylinder's compression. If the rings are worn the addition of oil will tend to raise the compression noticeably. Other than that one would have to wonder about the valve guide replacement job.
If this is a turbo engine the other possibility is that there is a build-up of oil in the exhaust system components which is now being evaportated and which will subside over time. Check the actual oil consumption (miles/qt) before doing anything drastic.
Please let me know what you learn and how it resolves.
Roland
PS Use the 'thank/rate' tab to get back to me without having to wait for me to be 'available' to take a question. There is a space for comments

Roland thanks for your quick response to my question. I did add the oil to the cylinders and there was no measureable difference to the compression on any cylinders. I have been told by several pepole that I may have excess oil and or antifreeze in my exaust system. I only have 6 miles on this engine after I had the head work done, The rebuilder is a reputable rebuilder so I don't think the head was improperly done. At this time I have decided to put a few hiway miles on the engine to see if the smoking clears up. This is not my first head R and R, but this is the first time where I have had compression restored to near factory levels and had an engine smoke like this. I wondered if there was some mopar tech tip that I was not aware of relating to the Chrysler 2.5L engine. Thanks for your imput and suggestions. THANKS David S. Audet

Hi David,
If the engine was burning oil before the head job, then that build-up in the exhaust is a possibility. Otherwise, it could be a faulty valve guide/valve seal situation, or a less than perfect seal of the head gasket that is allowing oil to seep into one of the cylinders, though you would imagine that the compression on such a cylinder would be lower than the others. Did you clean the block surface thoroughly and is there a chance there is a gouge in that surface?
How about rechecking the head bolt torque. (You could back off the bolts to 65, then tighten a 1/4 turn again). If you had some oil down in one of the bolt holes before reassembly, then another possibility is a false high torque on the bolt in that one.
I know there was a history of the 2.5 having a fragile gasket, but I believe that the design was then improved by Chrysler (did you get a factory gasket from a dealer?).
I don't recall any other issues with the 2.5, which is the same one I have in my '89 Lebaron, and which did develop a gasket leak at around 60,000 miles. I simply replaced the gasket; didn't do a rebuild on the head.
I agree with driving it before doing anything. Then consider some of the above.
Let me know how this works out, please. And thanks for the nomination.
Roland