Anyone else have or has had this problem? Video Pg. 3

[Turbo Habanero]

So I have been having a problem as of the past month and a half or so.

My car seems to give a random puff of Grey smoke only on deceleration ill come to a light (manual) letting the motor slow me down and very rarely ill see smoke go by my car (Grey in color)

Also same color smoke will come from my car on Start-up evry once in a blue moon maybe once a week or longer ill see it

My car is daily driven and 40-100miles a day at least.

I live in Arizona Temps 85-105F on a daily basis.

I've searched the web and seen that Gray is to much AIR (Lean conditions) or Valve Stem seals, my head had a complete valve job less then 8500k miles ago.

My car is stock Turbo (8-9psi) seems like it has tiny bit of play.

Warm Idle/Clutch engaged (16.1-17.0)
Vacuum on boost gauge at Idle (14-16 -Psi) i'm sure i have a Vac Leak will be getting to that in the morning.

Only Known problems I have comes from the above gauge readings.

Just seeing if anyone else has experiences with any similar problems and how they have or if they have fixed them.

Thanks for all the reply's in advance. Jordan

 

[GrimJack]

Sounds like valve stem seals to me... fixed similar problems on my car, anyway.

 

[mirage83]

Sounds like valve stem seals to me... fixed similar problems on my car, anyway.

I'll second that. Same experience here with that problem.

 

[IJ.]

Find a big downhill, hit it at speed closing the throttle on the way down, if it's stem seals soon as you open the throttle again you'll see smoke, helps if you have someone follow to confirm.

 

[Turbo Habanero]

Ugh yea everyone seems to think it my stem seals. I just don't want to accept that cause i just did the head 7162k miles ago (exactly) complete valve job.

This sucks.

Ill see if i can try what your talking about IJ

How big of a hill are we talking about ?

---------- Post added at 06:33 PM ---------- Previous post was at 06:27 PM ----------

Anyone want to help me try and do the seals with the head on the car? if it is at all possible?

 

[IJ.]

Doesn't have to be huge just means you can make the engine generate a good vacuum on the way down, you get the same effect on the flat backing off from speed.

 

[jetjock]

With that kind of mileage I'd say you got your money's worth

 

[Turbo Habanero]

Doesn't have to be huge just means you can make the engine generate a good vacuum on the way down, you get the same effect on the flat backing off from speed.

So should i hit a hill at like 60mph and just coast down i 3rd and then at the bottom press the gas again and see if it smokes?

---------- Post added at 07:07 PM ---------- Previous post was at 07:07 PM ----------

With that kind of mileage I'd say you got your money's worth

Im laughing on the outside .... Crying on the inside

---------- Post added at 07:08 PM ---------- Previous post was at 07:07 PM ----------

How Stupid is it to keep driving the car like this?

 

[IJ.]

So should i hit a hill at like 60mph and just coast down i 3rd and then at the bottom press the gas again and see if it smokes?

---------- Post added at 07:07 PM ---------- Previous post was at 07:07 PM ----------



Im laughing on the outside .... Crying on the inside

---------- Post added at 07:08 PM ---------- Previous post was at 07:07 PM ----------

How Stupid is it to keep driving the car like this?

3rd, 5th doesn't really matter but yeah that's the general concept

Not coast it has to stay in gear so it's engine braking.

It's not really going to hurt anything, you might end up fouling a plug or 2 if it's really bad and as long as you keep an eye on the oil level it won't "break" anything.

 

[Turbo Habanero]

It's not really going to hurt anything, you might end up fouling a plug or 2 if it's really bad and as long as you keep an eye on the oil level it won't "break" anything.

Ok that's good to hear. I just hate knowing something is wrong with my car.

Thankyou Ian,Jet,Grim and Mirage ill keep you up to date on what i find out. also ill go try driving down a hill Ian.

Also gonna go back to the machine shop see if i can get them to help me out since the head is basically new

 

[Van]

Ugh yea everyone seems to think it my stem seals. I just don't want to accept that cause i just did the head 7162k miles ago (exactly) complete valve job.

Are you saying: seven thousand, one hundred, sixty two miles? Ouch! Van

 

[Turbo Habanero]

Are you saying: seven thousand, one hundred, sixty two miles? Ouch! Van

yes sir 7,162k

 

[Backlash2032]

7,162k miles is a lot. Not to thread jack or anything, but how hard would stem seals+shims be with the motor in the car? Im still not sure if i want to to a turbo swap, so this may be irrelevant.




And i think you're looking for 7,162 miles.

 

[GrimJack]

Actually, changing the seals isn't a difficult task. Buy some soft rope, pull the valve covers, and spark plugs, feed rope in through spark plug hole, rotate engine by hand until rope presses up on bottom of valves, remove cams, buckets, and shims on cylinder you are working on, press down on valve spring with a short piece of plastic piping with notches cut in it with a dremel, remove retainers using magnet in the notches cut in the pipe, remove springs, seals, install new seals, and reverse everything to reassemble that cylinder.

The only PITA with this method is that you have to remove and reinstall the cams several times.

 

[T701jz]

Turbo seals?

 

[hvyman]

Actually, changing the seals isn't a difficult task. Buy some soft rope, pull the valve covers, and spark plugs, feed rope in through spark plug hole, rotate engine by hand until rope presses up on bottom of valves, remove cams, buckets, and shims on cylinder you are working on, press down on valve spring with a short piece of plastic piping with notches cut in it with a dremel, remove retainers using magnet in the notches cut in the pipe, remove springs, seals, install new seals, and reverse everything to reassemble that cylinder.

The only PITA with this method is that you have to remove and reinstall the cams several times.

Wouldnt it just be once since when the cams are out the valves are all closed and the 7m is not interference anyways.

Or were you talking about for when you turn the crank so the belt stays in the same place?

Also could use air if you have a compressor.

 

[Turbo Habanero]

I don't think im that confident in my skills lol. Although ive surprised my self thus far.

Im not sure this is related but for some reason my car is only 14-15 Vacuum (Boost gauge) at idle and 18-20 during load 0% throttle. I just took a bottle of Brake Clean and sprayed everywhere and no change in idle.

My car is at 12psi drops to 10 hits Fuel Cut if i shift really fast. (stock injector setup)

---------- Post added at 12:37 AM ---------- Previous post was at 12:34 AM ----------

how hard would stem seals+shims be with the motor in the car? Im still not sure if i want to to a turbo swap, so this may be irrelevant.

Whats the seals got to do with a turbo swap.

I would just do them if there bad..

But i hate when my car is acting weird in any way and have to keep working on it till its fixed but sometimes im like a blind man a strip club

 

[GrimJack]

Wouldnt it just be once since when the cams are out the valves are all closed and the 7m is not interference anyways.

Or were you talking about for when you turn the crank so the belt stays in the same place?

Also could use air if you have a compressor.

Good point! I did the valve shims at the same time, which needed the cams back in to measure, but if you don't need to adjust anything it would be much faster.

 

[Turbo Habanero]

So how exactly do i go about changing them?

 

[IJ.]

Remove Cams and Sparkplugs

Plug ALL the holes in the head that lead to the block with rags

Turn #1 so the piston is about 2" down the bore (Use a chopstick to verify)

Get some soft non fluffy rope then feed it into the cylinder through the sparkplug hole

Turn the crank so the piston comes back up until it stops, the rope then bunches against the valves holding them in place

Carefully remove buckets and shims and place in order on the bench

I use a rag and a plug socket to tap the retainers this lets the keepers loose, the rag catches them, be careful they have a habit of flying

Place the springs in order on the bench with their buckets and shims

Use a pick to catch the steel lip on the seal and pull it up

Grease and fit new Viton seals using an installation plastic condom over the valve stem, tap down into place with a pin punch

Reintall Springs using a spring compressor

Once all 4 valves are done turn the crank backwards to replease the rope

Repeat 5x more

It's not all that involved just slow and fiddly work.