team3s           Thursday, January 20 2000           Volume 01 : Number 032




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Date: Wed, 19 Jan 2000 16:37:38 -0500
From: "John T. Christian" <jczoom@geocities.com>
Subject: Re: Team3S: Sunroof Question

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Hi Rah,

Been there done that.....Don't take the 'thingy' off.  It acts to buffer
the wind.  If you take it off, you will get serious wind vibrations
depending on speed and outside wind conditions.

Or simply give you a bad hair day and mess with your ear drums.

Be of good cheer,
John

Rah wrote:
>
>     I have a 93 R/T TT with the sunroof, and I'm sure you're all
> framiliar with the spring/hinge thingy that kind of aids you in putting
> it on and sticks up when it's off.
>     Well, I can't help but think it looks a little akward how it sticks
> up when driving, assuming I'm not forgetting to do something I should.
> So, knowing this is an odd question to ask in January, have people made
> up simple ways to make it stay down or rigged up something special?
>
> Just Curious,
> --Rich
>
- --
JCZoooM  93 TT 12.46@109Mph   Now with Porsche brakes & Supra rotors
Email---> JCZooM@iname.com 
http://www.geocities.com/motorcity/flats/4538


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Date: Wed, 19 Jan 2000 18:34:01 EST
From: Klusmanp@aol.com
Subject: Re: Team3S: Compression check

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I'm trying to imagine what a compression check on the cylinders would tell
you about a sick turbo. I imagine a sick turbo would have bad bearings or
some kind of damage to the impeller blades on either the compressor or
turbine. Perhaps whoever suggested a "compression check" was referring to
some kind of check on the turbo itself?

Paul Klusman


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Date: Thu, 20 Jan 2000 11:45:37 +0100
From: "R.G." <robby@freesurf.ch>
Subject: Re: Team3S: Compression check

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> I'm trying to imagine what a compression check on the cylinders would tell
> you about a sick turbo.

Absolutely nothing !

> I imagine a sick turbo would have bad bearings or  some kind of damage to the impeller
> blades on either the compressor or  turbine. Perhaps whoever suggested a
>"compression check" was referring to some kind of check on the turbo itself?

If a turbo is boosting low this can be due to a bad engine not producing enough power to push the turbine wheels. Of course this is the worst scenario but when pistons are damaged or the rings are broken, pressure is going down into the crankcase as well as the mixture does. Therefore I always suggest a compression test to eliminate the engine being the cause for the problem. Then the next step is gettign out the turbos to see if there is a problem.

Roger
93'3000GT TT





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Date: Thu, 20 Jan 2000 12:17:34 +0100
From: lehir@genesiscom.ch (Genesiscon Lehir)
Subject: RE: Team3S: RE: Gremlinomobile

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Hi,  Eric, thank you for your help...

>>I don't suppose you remembered to disconnect your battery fo 20 minutes or
>>so after installing the K&N, did you?  Just checking because you didn't
>>mention it.

Well, indeed, no, I did not....but......

>>  You need to do this anytime you make substantial changes to the
>>intake (and probably exhaust and fuel systems, too) so that the ECU can
>>start over with the default A/F curves and "learn" what to expect in the
>>future...

Is replacing the stock air filter with a K&N a "substantial change" for the
car...
it's certainly NOT feeling this way....and I only did that...

_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_

Even if this was the cause....then, how the ECU can lower the boost,
given that the boost solenoid are DISCONNECTED, and that I have a (perfectly
working )Blitz DBSC unit in there, that would take care of the boost
?????????
Just (damm) curious !!!!

Henri



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Date: Thu, 20 Jan 2000 05:52:10 -0800
From: "Bob Forrest" <bf@bobforrest.com>
Subject: Re: Team3S: Compression check

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- -----Original Message-----From: Tim DeKeyser <tdekeyser@hotmail.com>
- --------------snip-------------
>diagnose my turbo PSI problem (4-5max) with a compression
>check. I will do so eventually, but I was thinking. If I had a
>compression problem, then that would mean oil will get past
>the rings, and since I only lose 1/2 qt every 3-4000 miles,
>doesn't that mean my compression is OK?? It also
>NEVER blows smoke of any kind when I step on it.

That's a lot of oil to be losing, IMO.  My '94 has only lost oil
when driving at 120 for an hour or two - about 1/2 qt low that I
noticed at the end of a 2,000 mile trip...  Other than that one
time, I've never had to add oil between changes.  BTW, most of us
recommend changing the oil every 2500 to 3000 miles, and changing
the filter every *other* oil change.

Unless all your driving is at high speed or under high temperature
conditions, (or you have to start your car a few dozen times a day),
1/2 qt per 3000 miles sounds high.  First check for leaks, or a
loose oil filter.  If you don't find anything, get the compression
checked.

Best,

Forrest







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Date: Thu, 20 Jan 2000 14:38:13 GMT
From: "Tim DeKeyser" <tdekeyser@hotmail.com>
Subject: Team3S: Re: Compression check

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Keep in mind that this engine has 140,000 miles on it. 1/2 gt of oil lost
every 4,000 miles IMO is good. I don't think I have a compression problem.
The dealer says that The turbo's are fine, and there is no leaks. goint to
the y-pipe or to the intake. What else could it be?

That's a lot of oil to be losing, IMO.  My '94 has only lost oil
when driving at 120 for an hour or two - about 1/2 qt low that I
noticed at the end of a 2,000 mile trip...  Other than that one
time, I've never had to add oil between changes.  BTW, most of us
recommend changing the oil every 2500 to 3000 miles, and changing
the filter every *other* oil change.

Unless all your driving is at high speed or under high temperature
conditions, (or you have to start your car a few dozen times a day),
1/2 qt per 3000 miles sounds high.  First check for leaks, or a
loose oil filter.  If you don't find anything, get the compression
checked.

Best,

Forrest






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Date: Thu, 20 Jan 2000 07:58:15 -0800
From: "Bob Forrest" <bf@bobforrest.com>
Subject: Re: Team3S: Re: Compression check

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- -----Original Message-----From: Tim DeKeyser <tdekeyser@hotmail.com>
>Keep in mind that this engine has 140,000 miles on it. 1/2 gt of
oil lost
>every 4,000 miles IMO is good. I don't think I have a compression
problem.
>The dealer says that The turbo's are fine, and there is no leaks.
goint to
>the y-pipe or to the intake. What else could it be?


Ah, I forgot it was high miles...  But that's where the oil is
going - past the rings.  By 140k, it's normal, but it's because of
loss of compression.  It's not a problem, it's just normal
wear-and-tear.  You might want to get a compression check just to
see how much it has lost, or if any one cylinder is worse than the
others.  (BTW, getting a ring job would probably get you another
140,000 miles!)  Once you've checked on the compression, then you
can concentrate on checking out the other systems...

Best,

Forrest




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Date: Thu, 20 Jan 2000 10:50:32 -0600
From: "Landis, Michael" <MLandis@casham.com>
Subject: RE: Team3S: Re: Compression check

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I tend to agree with Tim - his oil consumption is not that high for 140K
miles.  My '92 had about 112,000 miles on it when the water pump/timing belt
crapped out on me, resulting in an overhaul.  Before the tragedy, I was
using over a quart of oil every 3,000 miles, but I'm pretty sure it was due
to valve seals - not rings.  To determine if it was rings or seals, I added
a quart of ATF (which causes the rubber seals to swell a little) a couple of
days before a scheduled oil change, and all of my blow-by indicators (heavy
exhaust "smoke" after sitting at idle for a few minutes) went away.  When I
did the overhaul and got into the engine, the cylinders still showed some of
the original factory cross-hatching, and cylinder taper and top-of-cylinder
"ridge" were minimal.  This tells me that ring wear was nominal, even at
that "high" mileage.

Ring wear usually manifests itself with continuous visible smoke, especially
under acceleration.  I would imagine that significant ring wear combined
with significant boost would also result in fuel-contaminated oil as well.
If it's just seals, then you get a unhealthy belch of smoke upon
acceleration after sitting at idle, but in my case there was none visible
while driving down the highway.  I don't know how much the increased
cylinder pressure of a turbo'd car (mine's NA) would aggravate the blow-by
on a car with worn seals, but I'd suspect that this would also result in
contaminated oil.  HOWEVER, since he's only losing 1/2 qt every oil change,
I don't think that's enough to get excited about unless there are other
indicators (smoke, fuel in oil...).

Final caveat: if he's got broken COMPRESSION rings (ala Roger's pain...),
then perhaps that's a whole new ballgame.  If compression rings are broken
but the oil rings are intact, then what would the symptoms be?  I'll side
with Bob: I'd go through the trouble of pulling the plugs, check for signs
of oil on them while you're at it, and run a compression test on all
cylinders...

> -----Original Message-----
> From: Bob Forrest [SMTP:bf@bobforrest.com]
> Sent: Thursday, January 20, 2000 9:58 AM
> To: team3s@stealth-3000gt.st
> Subject: Re: Team3S: Re: Compression check
>
> ***This is the NEW Team3S list. See message end for more info.***
>
>
> -----Original Message-----From: Tim DeKeyser <tdekeyser@hotmail.com>
> >Keep in mind that this engine has 140,000 miles on it. 1/2 gt of
> oil lost
> >every 4,000 miles IMO is good. I don't think I have a compression
> problem.
> >The dealer says that The turbo's are fine, and there is no leaks.
> goint to
> >the y-pipe or to the intake. What else could it be?
>
>
> Ah, I forgot it was high miles...  But that's where the oil is
> going - past the rings.  By 140k, it's normal, but it's because of
> loss of compression.  It's not a problem, it's just normal
> wear-and-tear.  You might want to get a compression check just to
> see how much it has lost, or if any one cylinder is worse than the
> others.  (BTW, getting a ring job would probably get you another
> 140,000 miles!)  Once you've checked on the compression, then you
> can concentrate on checking out the other systems...
>
> Best,
>
> Forrest
>
>
>
>
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Date: Thu, 20 Jan 2000 09:33:07 -0800
From: "Gross, Erik" <erik.gross@intel.com>
Subject: Team3S: RE: Gremlinomobile

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> >>I don't suppose you remembered to disconnect your battery
> >>for 20 minutes or so after installing the K&N, did you? 
> >>Just checking because you didn't mention it.
>
> Well, indeed, no, I did not....but......
>
> >>  You need to do this anytime you make substantial changes to the
> >>intake (and probably exhaust and fuel systems, too) so that
> >>the ECU can start over with the default A/F curves and
> >>"learn" what to expect in the future...
>
> Is replacing the stock air filter with a K&N a "substantial
> change" for the car...it's certainly NOT feeling this way
> ....and I only did that...
>

AFAIK, it is:)  It definitely changes the amount of airflow into the engine,
and I know my engine was happier after I reset the ECU.  Granted, I have NA
car, though...   Y'all turbo buys correct me if I'm wrong, but I was under
the impression that most of you reset your ECU after installing a K&N as
well.


> _AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_AND_
>
> Even if this was the cause....then, how the ECU can lower the boost,
> given that the boost solenoid are DISCONNECTED, and that I
> have a (perfectly
> working )Blitz DBSC unit in there, that would take care of the boost
> ????????? Just (damm) curious !!!!

Hmmmm, I think I'll have to defer this one to some of the more serious gear
(turbine?) heads on the list:)

- --Erik

- ------                                             ----------
Erik Gross                                         DuPont, WA
'95 Pearl White 3000GT (NA, DOHC, 5-speed)          65,000 mi
Firestone Firehawk 245/50/ZR16 tires, stock wheels
Magnacor KV85 spark plug wires, NGK plugs @ 0.040"
K&N FIPK (57-1500), resonator intact
Mobil 1 10W30 Synthetic w/ OEM oil filter
***No more ticking lash adjusters!  Treated with GM EOS, BG
   44K FI cleaner. Change oil every 2000mi, filter 4000mi ***
- -------------------------------------------------------------



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------------------------------

Date: Thu, 20 Jan 2000 18:44:14 GMT
From: "Tim DeKeyser" <tdekeyser@hotmail.com>
Subject: Team3S: 'Sport' light still blinking

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I have repaired the broken wire, but the light still blinks. I have checked
both sets of wires, and the second set was fine. Now, instead of blinking
immediatly, it stays off for the first few bumps, then starts to blink.
Turning off the car and restarting makes it go away for a while, but then it
comes back. What else can it be?

Tim
'91 TT Stealth
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Date: Thu, 20 Jan 2000 12:30:54 -0800
From: "Dave Holden" <dholden@deadkenny.northern-lights.bc.ca>
Subject: RE: Team3S: 'Sport' light still blinking

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In order to identify the problem component in the ECS system you need to
read the error code.  It is possible to do this with a simple volt meter or
test light.  Components that set an error condition in the ECS unit are:
- G sensor
- Steering angular velocity sensor
- Vehicle speed sensor
- Damping force changeover adjuster inside spring dampers

The ECS control unit outputs a high-low signal across pins 3(+) and 12(-) of
the diagnosis connector.  This signal indicates which of the above listed
components has set the error condition and requires service.  The error code
is encoded into sequences of one or more long HI signals followed by one or
more short HI signals.  They can be decoded as follows:

0 LONG  7 SHORT - Good (no error)
1 LONG  1 SHORT - G sensor
2 LONG  1 SHORT - steering angular velocity sensor
2 LONG  4 SHORT - Vehicle speed sensor open circuited
6 LONG  1 SHORT - FR spring damper actuator
6 LONG  2 SHORT - FL spring damper actuator
6 LONG  3 SHORT - RR spring damper actuator
6 LONG  4 SHORT - RL spring damper actuator

These codes can be measured with the ignition key in the ON position.  The
connector is located under the dash to the left (from the driver's seat) of
the steering column.  It is a 12 pin connector.

Once you have identified and repaired the problem component or wiring you
can erase the error code by either disconnecting the battery for more than
10 seconds or cycling the ignition key between ON and OFF 60 times.

I hope this helps with your problem.

Regards,
Dave Holden
Pearl White '91 R/T
Vancouver, BC


- -----Original Message-----
From: owner-team3s@stealth-3000gt.st
[mailto:owner-team3s@stealth-3000gt.st]On Behalf Of Tim DeKeyser
Sent: Thursday, January 20, 2000 10:44 AM
To: team3s@stealth-3000gt.st
Subject: Team3S: 'Sport' light still blinking


I have repaired the broken wire, but the light still blinks. I have checked
both sets of wires, and the second set was fine. Now, instead of blinking
immediatly, it stays off for the first few bumps, then starts to blink.
Turning off the car and restarting makes it go away for a while, but then it
comes back. What else can it be?




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End of team3s V1 #32
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