Well for the past couple of weeks ive noticed some blue smoke comming from the exhaust at startup. I would also see some smoke at heavy acceleration. It would smoke a little at idle but not constantly like a puff here and there. so today in school I performed Cylinder leakage test and compression test.
Here are my numbers:

Compression
130 150 130 150

- The engine was cool so the readings were off a little.

Leakage test
26% 8% 7% 10%

I was told in the beggining that I had bad rings but the test verified that they are ok. Ive also noticed that the spark plug in cylinder 2 is black and coated with oil so i took a flashlight and looked in the hole where the piston is and 3/4 of the piston was covered with oil. Like literally looked like someone pored oil into my cylinder. What do you think is causing it?

 

valve shaft seals

 

dude your doing it all wrong. You need to get that motor as hot as possible. Im not saying over heat the motor, just go due some WOT runs or sit in ur driveway and rev it up to 3k and hold it for a few minutes at a time.

Remember reason for getting it hot is to expand the metals and get the rings to seal properly and then redo the test. Your reading are complete dog **** and so is your leakage.

Redo test then comebackl with new numbers.

quick example i ran a compression test and got 160.155.170.130. Of course i started to freak out. I was told to get motor hot and redo the test and i did. New numbers were 170.170.170.170, get my point?

 

I know how to do a compression test but i didnt have enought time and this is my only chance to do it for awhile. I did the test to see if the numbers were different from each other cause then ill know if theres a problem. The cylinder leakage test is in the LOW range (30% or less) I bought valve seals and im gona get them changed asap

 

it sounds like you got piston rings problem.
Take it to a pro and let him check it

 

I'm jumping on this wagon

 

same here i just ordered the seals from mitsu nd we will see after that

 

LOL why dont u do it right before assuming its the valve seals? but hey its ur car, ur money waste it like u want.

 

Did u even remove the oil cap to verify it is the seals when doing the CLT? i bet not.

 

My head had 3 bad valve stem seals after 60k. The springs like to eat through upper stopping edge so they can bounce around on the stem of the valve haha.

 

You don't have time to do a proper comp test but you have time to throw a set of valve seals at her? How many miles on the car? Also take a look at the hoses coming from the turbo odds are that's where the oil's coming from.

 

+1 on this

 

This guy has a point tho. If the oil return line gets clogged kinked or restricted in any way it can case ol to back up into the exhaust and / or intake. The reason i still beleive it is valve seals is because it does it on sartup when oil has had longer to seap down the valves and any restricted oil return line I have seen caused the car t smoke the whole time it was running.... some uncle buck sh*t lol

 

This isn a srt4 so i would like opinions from someone with an EVO thanks.

the car has 65k. but if it were the turbo wouldnt it be all 4 plugs covered with oil not just 1?

 

idk...wish i could help...my X smokes but thats from running rich!!!