Spyder Smoking Issue Because Of Turbo?

[Tkzdsm]

My 1998 spider gs-t smokes and it’s annoying and I am pretty sure it’s most likely the turbo seals I feel like, It only smokes when I rev but never when I’m just in idle. I thought it would be the valve guide seals but the guy I bought it from said he had gotten them replaced and they didn’t look eaten up when I had my valve cover off. Just want to be sure before replacing the seals on my turbo. Is there other reasons to why it might be smoking? Any feedback is appreciated.https://www.youtube.com/watch?v=IoNgI0KIQ3I

 

[TerminalTalon]

Pull the intake to the turbo and check for shaft play

 

[dwb]

Take a look at your PCV and crankcase vent. Make sure they aren't restricted in any way (i.e. no filters or blockage) and they are routed back to intake (PCV to IM and breather to pre-turbo intake). Also double check the PCV valve is working correctly as a one-way check valve.

Do you have a clear picture of the engine bay you can post?

 

[Blinkyblinx9]

What does it smell like? Does it smell sweet, like gasoline a little, or just gross? Its hard to tell from the video if there is any color to it so does it appear white and pillowy, darker like kind of sooty, maybe blueish? Also revving is a bit vague. I assume your blipping the throttle in the video. What happens if you say lightly get it up to and hold it at 2500rpm? I only ask because it looks like its only when you let off the throttle that it starts puffing smoke. Could be the increased vacuum after you let off the throttle or it could be dumping fuel instead of cutting.

 

[Tkzdsm]

Take a look at your PCV and crankcase vent. Make sure they aren't restricted in any way (i.e. no filters or blockage) and they are routed back to intake (PCV to IM and breather to pre-turbo intake). Also double check the PCV valve is working correctly as a one-way check valve.

Do you have a clear picture of the engine bay you can post?

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[Tkzdsm]

Take a look at your PCV and crankcase vent. Make sure they aren't restricted in any way (i.e. no filters or blockage) and they are routed back to intake (PCV to IM and breather to pre-turbo intake). Also double check the PCV valve is working correctly as a one-way check valve.

Do you have a clear picture of the engine bay you can post?

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[Tkzdsm]

What does it smell like? Does it smell sweet, like gasoline a little, or just gross? Its hard to tell from the video if there is any color to it so does it appear white and pillowy, darker like kind of sooty, maybe blueish? Also revving is a bit vague. I assume your blipping the throttle in the video. What happens if you say lightly get it up to and hold it at 2500rpm? I only ask because it looks like its only when you let off the throttle that it starts puffing smoke. Could be the increased vacuum after you let off the throttle or it could be dumping fuel instead of cutting.

I’m pretty sure it’s oil, it doesn’t smell sweet or anything, and it smells more just gross and yeah it’s hard to see the color. When i was replacing my coolant recently and was bringing it up to around 2k rpms slowly and holding it, it started smoking still and when when it went back down to normal idle it doesn’t smoke almost at all

 

[dwb]

Here's your problem. You aren't able to release enough positive CC pressure so it starts pushing elsewhere, most likely valve stem seals (that's not saying your seals are bad necessarily).
Replace that filter with a straight hose routed into the intake snorkel as it was from the factory. Your off-throttle smoke will disappear.
Edit - additionally, since you are running a MAF, any air that escapes the little breather filter causes it to runs rich. Could also be another culprit of smoke.

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Looks like you also have a 14b or some flavor of 16g turbo.

 

[Blinkyblinx9]

Here's your problem. You aren't able to release enough positive CC pressure so it starts pushing elsewhere, most likely valve stem seals (that's not saying your seals are bad necessarily).
Replace that filter with a straight hose routed into the intake snorkel as it was from the factory. Your off-throttle smoke will disappear.

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Looks like you also have a 14b or some flavor of 16g turbo.

I would think that would be more of an issue when the manifold was not under vacuum. When you pull up to 2k and hold it there the engine is still operating at around 16-18 inhg. I don't see how that filter would be an issue under those operating conditions unless his PCV valve was stuck closed and the filter were significantly restricting flow.

 

[dwb]

I would think that would be more of an issue when the manifold was not under vacuum. When you pull up to 2k and hold it there the engine is still operating at around 16-18 inhg. I don't see how that filter would be an issue under those operating conditions unless his PCV valve was stuck closed and the filter were significantly restricting flow.

I've been there, done that. It definitely causes smoke off-throttle in my experience.
When properly routed to the intake snorkel, the vacuum from pre-turbo greatly assists in evacuating the positive CC pressure. PCV also helps, but it is not enough on it's own. The filter on the other hand is a restriction. It also causes both rich and lean conditions (vacuum in CC = lean, pressure in CC = rich).

 

[Tkzdsm]

Here's your problem. You aren't able to release enough positive CC pressure so it starts pushing elsewhere, most likely valve stem seals (that's not saying your seals are bad necessarily).
Replace that filter with a straight hose routed into the intake snorkel as it was from the factory. Your off-throttle smoke will disappear.
Edit - additionally, since you are running a MAF, any air that escapes the little breather filter causes it to runs rich. Could also be another culprit of smoke.

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Looks like you also have a 14b or some flavor of 16g turbo.

Oh really I didn't know, do you have a picture of how it is stock? Thank you

 

[Blinkyblinx9]

There is a nip that a 5/8 hose comes off of going to the intake just after the filter near where the recirculation pipe goes.

Yeah, with a MAF I would definitely say one should probable be recirculating all gasses regardless of the problem unless your super familiar with how your car behaves stock. luckily it should be easy to return that to stock.

 

[Tkzdsm]

Oh really I didn't know, do you have a picture of how it is stock? Thank you

also am I missing a part that the tubing from the snorkel intake, that I have that weird small air filter on, that goes into it.

There is a nip that a 5/8 hose comes off of going to the intake just after the filter near where the recirculation pipe goes.

Yeah, with a MAF I would definitely say one should probable be recirculating all gasses regardless of the problem unless your super familiar with how your car behaves stock. luckily it should be easy to return that to stock.

Okay thank you and I probably wouldn't have caught that. I never payed attention to that area so I thought it was stock

 

[dwb]

Oh really I didn't know, do you have a picture of how it is stock? Thank you

This is upside down, but this is what you're looking for. I believe the actual nipple in this example has been pulled out.

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Here's what the drawing looks like

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[Tkzdsm]

This is upside down, but this is what you're looking for. I believe the actual nipple in this example has been pulled out.

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Here's what the drawing looks like

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thank you, i’ll update in a bit and see how it goes. would you think that this might also contribute to difficulties of the car starting and staying alive, it usually takes a few tries to get it to stay alive so i can drive it, you can see in one of my other posts.

 

[dwb]

thank you, i’ll update in a bit and see how it goes. would you think that this might also contribute to difficulties of the car starting and staying alive, it usually takes a few tries to get it to stay alive so i can drive it, you can see in one of my other posts.

There's two nipples there too, one for charcoal canister and one for the cc vent. If either are open/not plugged you might have some strange issues. Fixing all the little things adds up to a happier car, whether or not it fixes what you want is tbd.

 

[Tkzdsm]

There's two nipples there too, one for charcoal canister and one for the cc vent. If either are open/not plugged you might have some strange issues. Fixing all the little things adds up to a happier car, whether or not it fixes what you want is tbd.

do you know which one is which and should i use hose clamps, should the charcoal canister be closed or opened, sorry i dont know anything about intake

 

[Tkzdsm]

do you know which one is which and should i use hose clamps, should the charcoal canister be closed or opened, sorry i dont know anything about intake

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[jesse12345]

I'm real curious where you have this vacuum line going?

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[Tkzdsm]

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so the thicker one ,left, is going to somewhere in the back by the firewall and maybe under the battery mount(2nd pic).

the thinner one, right, goes to this module underneath the maf and air filter (1st pic)

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[Tkzdsm]

I'm real curious where you have this vacuum line going?

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wow i didnt know where this went until now apparently to my blow off valve? that i have? i did not know hm, wow this makes me seem like i dont know my car at all, tbf i did just get it like a month or two ago

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[dwb]

The big one going to underneath the battery is correct - that's the charcoal canister. The other smaller nipple goes to your CC vent like we talked about.
The line you have there needs to be on a boost source. I'm not sure exactly where since that's a 2g thing.
Actually, figure out where that smaller line goes.

 

[Tkzdsm]

so the thicker one ,left, is going to somewhere in the back by the firewall and maybe under the battery mount(2nd pic).

the thinner one, right, goes to this module underneath the maf and air filter (1st pic)

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so this is where the additional tube from the module led to

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[Tkzdsm]

so this is where the additional tube from the module led to

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also one of the red cube hose is connected to the turbo

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[dwb]

You got something a little different about your boost control.