[TheMidnightNarwhal]

Update time!

Was pretty hyped this was gonna fix it since I found the crack in old cover. Unfortunately I think I still get that oil smell. I got a few whiffs on my ride. I will report over the next weeks as the actual full on oil puffing sessions used to only happen randomly at stop lights so I'll report if any comes.

My supercharge like whining noise is also still there so I can only assume that it's the turbos since now my PCV should be fully operational.

b92 tagging you to let you know as well since you wanted to know

[b92]

Originally Posted by TheMidnightNarwhal

Update time!

Was pretty hyped this was gonna fix it since I found the crack in old cover. Unfortunately I think I still get that oil smell. I got a few whiffs on my ride. I will report over the next weeks as the actual full on oil puffing sessions used to only happen randomly at stop lights so I'll report if any comes.

My supercharge like whining noise is also still there so I can only assume that it's the turbos since now my PCV should be fully operational.

b92 tagging you to let you know as well since you wanted to know

Appreciate it! I've already ordered the new VC, but still need to order the RB external PCV + catch can. Which catch can did you go with?

[type-dRew]

Id imagine theres oil that needs to be cleaned out of the vally or off the block/head itself from the damaged VC.

If it wasnt cleaned up, id imagine it will eventually burn off or go away completely if you take time to clean it well.

[TheMidnightNarwhal]

Originally Posted by b92

Appreciate it! I've already ordered the new VC, but still need to order the RB external PCV + catch can. Which catch can did you go with?

I don't use a catch can. IMO not that it's useless, it's just that I don't see or concluded to benefits in regard to oil smoking, only consumption and reducing oil film in the intake tract, which again I don't really mind. Also helps to prolong the walnut blast I believe. At least that's what I concluded from the OCC thread.

Originally Posted by type-dRew

Id imagine theres oil that needs to be cleaned out of the vally or off the block/head itself from the damaged VC.

If it wasnt cleaned up, id imagine it will eventually burn off or go away completely if you take time to clean it well.

Did clean off the middle best I could. But the smell is coming from the exhaust.

I know this sounds real dumb but maybe I'm not identifying the smell perfectly. Like it smells oily but not full on oily, but it definitely smells different from my pure gas exhaust smell.

Anyway, I'll update thread if I get some full on puffing or not.

[trb1]

Can you explain your supercharge/whine noise? Is it in boost? Does it sound like a dentist drill or like a faint siren? Or is it a full on whine. I just replaced a bad ac compressor bearing because my car actually did sound supercharged with that bearing failing.

[b92]

Originally Posted by TheMidnightNarwhal

I don't use a catch can. IMO not that it's useless, it's just that I don't see or concluded to benefits in regard to oil smoking, only consumption and reducing oil film in the intake tract, which again I don't really mind. Also helps to prolong the walnut blast I believe. At least that's what I concluded from the OCC thread.

I'm gonna go with the OCC, "do it right or do it twice". I'm hoping everything comes in before the weekend.

How long did the VC take you? I'm aiming to get it all done on Sunday, but I do have Monday off if there are unforeseen issues. I have a second vehicle anyway, not too worried.

[TheMidnightNarwhal]

Originally Posted by trb1

Can you explain your supercharge/whine noise? Is it in boost? Does it sound like a dentist drill or like a faint siren? Or is it a full on whine. I just replaced a bad ac compressor bearing because my car actually did sound supercharged with that bearing failing.

Honnestly hard to describe. Sounds exactly like a supercharged car I rode in... I guess it sound dentist drilly.

I put the stock stage 0 map and the sound was gone, so it's definitely high boost related, must be turbos on their way of life.

[TheMidnightNarwhal]

Originally Posted by b92

I'm gonna go with the OCC, "do it right or do it twice". I'm hoping everything comes in before the weekend.

How long did the VC take you? I'm to get it all done on Sunday, but I do have Monday off if there are unforeseen issues. I have a second vehicle anyway, not too worried.

This was my second time so I already knew what to do but I went slow as I usually do and I would say around 6-7 hours took me personally. Started at noon and took a lunch break as well as dinner break.

[PassiveDefect]

dont mean to hijack OPs thread but I'm in the same boat. 08 n54 95k miles. catless with downpipes so nothing to mask the smoke. its intermittent after replacing the turbos 10k miles ago. before i was steam train.

replaced
pcv, pcv vent hose, valve cover, walnut blasted and turbos

still smoking at stop signs and coming to a stop from a highway exit.

so my question is, I pulled spark plugs, engine still hot after driving back home smoking on the highway. pulled cylinder #3 and #6 out and the same exact smoke coming out the tail pipe came out the spark plug hole. like constant puff. all other cylinders ok. is it safe to assume it's the exhaust valve stem seals? really dont want to pull turbos just to peak at it.

[PassiveDefect]

compression was 175psi all across the cylinders. took a boroscope and this all I saw.

[trb1]

Originally Posted by TheMidnightNarwhal

Honnestly hard to describe. Sounds exactly like a supercharged car I rode in... I guess it sound dentist drilly.

I put the stock stage 0 map and the sound was gone, so it's definitely high boost related, must be turbos on their way of life.

Oh, game over. Replace those suckers.

[TheMidnightNarwhal]

Originally Posted by trb1

Oh, game over. Replace those suckers.

Well they still pull and boost nicely and have zero shaft play in any direction... So idk if they are actually done yet.

[trb1]

Originally Posted by TheMidnightNarwhal

Well they still pull and boost nicely and have zero shaft play in any direction... So idk if they are actually done yet.

I mean sure. They could also be smoking like a freight train and still hold boost. Just means that they're failing. Start looking for options at this point, because more likely than not they will go out with a bang.

[TheMidnightNarwhal]

Originally Posted by trb1

I mean sure. They could also be smoking like a freight train and still hold boost. Just means that they're failing. Start looking for options at this point, because more likely than not they will go out with a bang.

True.

I'm most likely going to get a internal rebuild kit, replacement CHRAs or just get new OEs stockers tbh when they go.

[TheMidnightNarwhal]

Originally Posted by PassiveDefect

dont mean to hijack OPs thread but I'm in the same boat. 08 n54 95k miles. catless with downpipes so nothing to mask the smoke. its intermittent after replacing the turbos 10k miles ago. before i was steam train.

replaced
pcv, pcv vent hose, valve cover, walnut blasted and turbos

still smoking at stop signs and coming to a stop from a highway exit.

so my question is, I pulled spark plugs, engine still hot after driving back home smoking on the highway. pulled cylinder #3 and #6 out and the same exact smoke coming out the tail pipe came out the spark plug hole. like constant puff. all other cylinders ok. is it safe to assume it's the exhaust valve stem seals? really dont want to pull turbos just to peak at it.

Did you replace oil drains from turbos.

[PassiveDefect]

replaced the gaskets during installation of turbos but no I did not

[TheMidnightNarwhal]

Originally Posted by PassiveDefect

replaced the gaskets during installation of turbos but no I did not

Hmmm ok because a bad oil drain is another cause for oil smoke.

[TheMidnightNarwhal]

Hey just wanted to add more info to this thread. I do think my valve cover fixed the times where I would come to stop and it would smoke and smell a lot for 2-3 minutes and still smoked whether I stopped or accelerated.

... but I do notice my car still seems to smoke overall more than usual. Granted it is winter so I'm always in -15c (5f) temperatures at the moment but IIRC last year when my car was warmed up it wouldn't smoke at all or not much in the winter. Right now it smokes when accelerating slowly or reversing for example, and usually coming to a stop as well. So I do think perhaps my turbo seals are just starting to get weak (if that's even possible?) or a underlying issue somewhere else.

Time will have to tell, at least for now the smells are really not as obnoxious as before valve cover and I'm not loosing oil so...

What tune, if any, are you running?

Wastegate rattle fix applied, etc?

Any other doodad BS you have turned on? (Burble, etc.)

[TheMidnightNarwhal]

Originally Posted by FCobra94

What tune, if any, are you running?

Wastegate rattle fix applied, etc?

Any other doodad BS you have turned on? (Burble, etc.)

Stage 0 MHD tune.

No wastegate fix running.

I am running the burple tune on max setting for 1.5 second maybe I should turn it off to see if any difference. I also have the MT shift bog delete.

Always had the mindset burples wouldn't affect smoking after reading the burple thread but maybe I'm wrong.

Once you've tested with those features turned off, also try running a Stage 1 map as well. Reason being that a high WG duty cycle during idle/low load situations (opposite of "WG rattle fix") could reduce/clear the smoking issue if it is in fact a seal problem.

Pretty common problem I would imagine, especially given the age of these cars now; my car will smoke coming to a stop if I apply the rattle fix; the more aggressive the "fix" the more smoke. Otherwise, w/ the OTS MHD E50 and no rattle fix, the car barely burns ~1/2 quart of oil every 5k+ miles.

TTFWIW

[TheMidnightNarwhal]

Originally Posted by FCobra94

Once you've tested with those features turned off, also try running a Stage 1 map as well. Reason being that a high WG duty cycle during idle/low load situations (opposite of "WG rattle fix") could reduce/clear the smoking issue if it is in fact a seal problem.

Pretty common problem I would imagine, especially given the age of these cars now; my car will smoke coming to a stop if I apply the rattle fix; the more aggressive the "fix" the more smoke. Otherwise, w/ the OTS MHD E50 and no rattle fix, the car barely burns ~1/2 quart of oil every 5k+ miles.

TTFWIW

Ok thanks for the info I will have to give these a try this week end!