i hate it even though i love that its sorta proving my point about the oil control on these motors with the ineffective windage tray around cyl 4.
tore down the OEM L26 shorty that was originally in my 04...cyl 4 had massive amounts of coking, no valve guide leakage or anything in the LIM to show oil entry via that path. cyl 1,3,5 showed only light/patchy carbon buildup, cyl 2 slightly more so. cylinder 6 was covered in carbon but thin, cyl 4 was nearly 4x as thick of a buildup as cyl 6.
this motor had been apart and modded for 50k miles over the last 4 years...i put it together clean back then with a top swap and no windage tray mods at all.
i cant remember how bad the carbon was when we pulled it outta the car with 37k but over the years ive noticed all cyl 4's have excessive coking...and in the case of engine damage, removing the pistons without flipping the motor upside down give you a cyl 4 piston with actual oil all the way up into the top ring groove....you wont find it on any other cylinders...they will be dry at the top ring land and may even be dry at the second (or just moist with oil)
i wish i had taken pics...**** you oem windage tray.
if any of your bastards ever have a junk shorty...dont tip it upside down...at all.... and pull the rods/pistons from the rear bank and at least one from the front. youll see what i mean about cyl 4's oil ring being overloaded with oil slung onto the bore wall.
i cant wait to tear down one of the 4 engines i have out there with the modified windage tray and cyl 4 scrapers....im gonna go out on a limb and guess that they are going to at least show an improvement and at most be coated with coke/carbon to the same degree as its siblings.
ill be doing it to this motor as i put it back together...as im swapping the car back to NA....with a GT1 cam and MLS gaskets missing a couple layers
/rant
