Smoking

[ZCNY2002]

ok when i got the car it was smoking alot so i replaced the stock turbo with an big 16g b/c there was alot of play in the old turbo so i thought that was the problem but that didn't fix it so it only smokes when i sit at a light and and also when i down shift so someone told me it's propably the valve stem seals so i replaced those yesterday and still no luck it's still smoking what else can it be i got a big 16g with a greddy front mount intercooler could it smoke if i got a leak in the excaust system i thing the seal between the o2 housing and the downpipe is bad anyone can help i am open for anything

 

[delta448]

Rings or headgasket. If the compression test gives lower than 140ish anywhere, your rings are the likely culprit. A good compression number on a 8.5:1 (stock 2G CR) 4G63 is about 170. If two adjacent cylinders read low, its the headgasket. If any one cylinder reads less than 75-80% of the rest or you get an average of less than 150 then you need to rebuild anyway.

 

[jram53]

i wish this was around when i had this problem i changed my whole turbo set up just to find out it was my rings this could be your problem to because i had the same symptoms as you

 

[the_mork]

If there is a whole lot of smoke it could be that your oil drain tube is blocked.

 

[ZCNY2002]

i checked the oil drain tube thought the same thing so i got the ExtremePSI oil drain tube just in case when i replaced the turbo no luck still the same problem also i checked my compression today from left to right i got 160, 150, 130, 150 i don't think thats good that was with the engine being warmed up

 

[95jdmgst]

having the compression that far off isnt good eather i think it is only good to be 5 to 10 percent off could be your head gasket. is there any water or anything coming out of the exhaust oild look like a milkshake or oil in the coolant lines? and check if your oxygens sensors are connected or evan working could be that your fuel air ratio is way off

 

[ZCNY2002]

oxygens sensors are brand new no water in oil going to check the coolant tomorrow but i believe it's the piston rings i am going to probably order a rebuild engine from Overbore there claim to have a 2nd gen 7bolt motor there fixed the crankwalk on and give a lifetime warrenty

 

[delta448]

It's your choice, but if it was me I'd try to not buy another engine. The warranty is a nice bonus but if you have a little patience and are willing to get your hands dirty you can save a lot of money by rebuilding your current engine.

You'd need the cylinders honed and deck surfaced, but otherwise you'd really only need a new set of rings, headstuds, valve cover gasket and a headgasket unless you want the extra peace of mind of new bearings, pistons, mainstuds and a BSEK. Either way, you'd likely spend a good bit less.

 

[No_Skillz]

............ <- You need a few of these. AND SOME OF THIS. Just for future reference.

 

[ZCNY2002]

yeah i would do it myself but the problem is i can't have the car down to long it's my daily driver