99 NB, 75K mi on stock engine, 5K on DIY t3 ebay turbo @ 8-10psi. Reverant MS2. The car runs and drives alright (for a beginner's tune, startup kinda sucks), has plenty of power and spools great. I called Savington this morning and he said my compression #'s were bad, but I need to perform due diligence before I eat ramen for 2 months during a rebuild.
How did this begin?
Every couple of weeks i'd be stupid enough to get stuck in San Francisco traffic and after idling/barely moving for 15 minutes the smoke would start to pour out. Then driving off, it seemed to go away. I couldn't even reproduce the smoking by leaving my car idling in the driveway for half an hour then driving it up and down the block trying to simulate traffic and decel in gear trying to pull oil through vacuum (thought it was PCV or valve seals). Then a couple of days ago in traffic, it happened again and is now much worse:
Cold engine - no sadness
Cool engine w/ revs - some sadness
Warm engine revs - so much sadness that the camera falls over
Sometime between "occassional problem" and "undrivable" I did change the oil from castrol 5w40 synthetic to Rotella T6 5w40
I've replaced the PCV valve with the 323GTX unit and tried stock routing (vc to intake manifold and open drivers side port) and 'unhooked' (plugged intake manifold and both valve cover ports open.
I pulled the turbo compressor inlet and outlet and they were both dry, medium shaft play but no more than when the unit was new
Spark plugs all look dry
No fluids are low but it's smoking bad enough that I can't drive around for 1,000 miles to find out. Oil is at the correct level but I may pull out .5 quart to make sure of no turbo oil drain hose blockage.
Compression test today but no leakdown yet
Dry & Wet
#1 - 165 190
#2 - 162 180
#3 - 162 188
#4 - 180 188
The smoke is white but it doesn't smell sweet and headgasket-coolant problems I've seen in the past smoked more. And why would it go away after idle smoke for weeks, even when I boosted the **** out of it? Any opinions on whether valve stem seals could smoke as bad as the videos? There is no puff upon startup after sitting. Pull the head? Pull the motor?