Team3S: 3000GT & Stealth Sunday, December 22
2002 Volume 02 : Number 032
----------------------------------------------------------------------
Date: Sat, 21 Dec 2002 14:33:27 -0600
From: "Alex Pedenko" <
alex@kolosy.com>
Subject: RE: Team3S:
Timing belt replacement
Like some people have pointed out, those numbers are unfortunately of
little use. While some people have gotten lucky with the timing belt, past
60k it's a ticking time bomb - there are just too many variables that
determine how long it will last... I changed mine at 78 and it was fine, but
it's just a risk... the question becomes not whether it will last, but
whether you're willing to pay for the consequences of it breaking, which
in the case of a stock NA (with a compression ratio of what - 10:1 (?)) will be
new valves + pistons + who knows what else...
And btw - seeing as how the belt should be changed at 60k intervals, 140k
is _really_ pushing it...
Just my .02...
Alex
'95 VR4
- -----Original Message-----
From: Carl Beebe
Sent: Saturday,
December 21, 2002 2:15 PM
I got a few responses ranging from 85-140k miles without a problem before
changing belt. I would like to hear from everyone that has had a
belt
go bad & how many miles your belt had on
it?
Carl
Beebe '95 3kGT
DOHC
Binghamton,NY
------------------------------
Date: Sat, 21 Dec 2002 15:40:55 -0500 (EST)
From:
fieroman@webtv.net (Carl Beebe)
Subject:
Team3S: Premium fuel
Has anyone tried a lower grade fuel for DOHC non-turbo engine? While on a
trip my wife filled my car w/ regular by mistake. The car ran just as well
& got the same mpg. We also climbed some big mountains w/no power lose
or pinging. We use to have a '95 Pontiac Grand Prix GTP w /3.4 DOHC 222 hp that
used regular fuel. Why would the non-turbo engine need
the same fuel(premium) as the twin turbo? I would think that mid-grade
fuel would be fine? Most cars w/ECM (computer) the ecm controls the timing
& if you disconnect the battery the ecm will readjust itself while you
drive, so if you use a mid-grade fuel & let the ecm readjust itself w/
mid-grade fuel to prevent any chance of spark-knock shouldn't that prevent
any damage to the engine? Back in the days of the big block motors
(60's& 70's ) that used premium fuel it was common practice when fuel
prices jumped sky-high to retard the timing until no pinging was heard using
regular
fuel.
------------------------------
Date: Sat, 21 Dec 2002 12:42:48 -0800 (Pacific Standard Time)
From:
"Jeff & Debby Kelley" <
spiritliving@canby.com>
Subject:
Fw: RE: Team3S: Timing belt replacement
I bought my car with
87,000 on it so I didn't know if the belt had been
replaced. I took it
to my mechanic and he said it looked brand new. So I now have 98,000 on it and
still running. I will keep checking it then replace it no later than
120,000 assuming the original owner did the 60,000. Jeff 93 Stealth
Base
- -----Original Message-----
From: Carl Beebe
Sent:
Saturday, December 21, 2002 2:15 PM
I got a few responses ranging
from 85-140k miles without a problem before changing belt. I would like to
hear from everyone that has had a belt go bad & how many miles your belt had
on it? Carl Beebe '95 3kGT DOHC Binghamton,NY
------------------------------
Date: Sat, 21 Dec 2002 16:44:31 -0600
From: "Wieschhaus, Brandon Kenneth
(UMR-Student)" <
bwish@umr.edu>
Subject: RE: Team3S:
simple/serious problem.
Yeah, mine is gone too. I tried to look up the part on CAPS, and it says
something along the lines of window striker or something. On my car, I
have to close the door just right, or else the window will hit on the hard
black strip that the striker USED to be mounted on... That definitely leads to
water in the interior. I would recommend replacing it, I know I'm gonna
replace mine as soon as I get a little money...
-b
- -----Original Message-----
From: fastmax
[mailto:fastmax@cox.net]
Sent: Saturday, December 21, 2002 12:02 AM
If it's what I think it is it's just a guide to force the window against
the seal. without it you're likely to get more wind noise around the
window.
Jim Berry
================================================
- ----- Original Message
-----
From: <
M3000GTSL84@aol.com>
>
>
This is a difficult problem to explain. Imagine your door. Up at the
>
top of the window, toward the back, near the rubber seal, is a
> tiny
black plastic thing. I honestly don't know what it
> does. Anyway, it was
somehow bent in, and the window
> was getting stopped by it whenever
I would close the door. I, in
> a moment of genius, decided to bend it
back. Then it snapped off! But now,
> since that part is gone, the window
is closing and sealing correctly, at
> least I hope so.
------------------------------
Date: Sat, 21 Dec 2002 18:22:31 -0600
From: "cody" <
overclck@satx.rr.com>
Subject: RE:
Team3S: Premium fuel
Well, you have to remember the compression ratio in a non-turbo DOHC 6g72
motor is 10:1... Our computers will learn to retard timing until
there is no knock, but you are losing power, efficiency, and gas mileage
will change. It may be slight, however it will change. To combat
knock, the timing is retarded, retarding timing means less power to
accelerate and cruise, less overall power means more fuel is needed to do all
the same things...
The ECM in every car is always learning... it is always adjusting -
disconnecting the battery just makes it happen all the quicker...
that Pontiac you had more than likely had 9:1 compression ratio, or similar,
that motor does not have quite as high of a specific hp per liter 222out
of 3.4 instead of 222 out of 3.0 liters...
TO make this short, you can use whatever you want, but is the "Expensive
gas" that much more expensive that risk of excessive knock in your car is
acceptable?
- -Cody
------------------------------
Date: Sat, 21 Dec 2002 18:25:21 -0600
From: "cody" <
overclck@satx.rr.com>
Subject: RE:
Team3S: Snow Tires
In my Talon, on a launch, the rear of the car tends to step out to the
right as well... This is on dry pavement though...
- -Cody
The other day, I had the rear end of the car break out to the left. AFAIKR,
this is the only time it has gone left instead of kicking out to the right
under hard acceleration with about 6 inches of snow on top of icy
blacktop. Does the rear usually kick out one way or the other, because of the
rotation of the flywheel and driveshaft? Inquiring minds want to
know...
- --
Paul/.
95 black 3000GT VR-4
98 VFR800F, TBR aluminum hi
exit
formerly reasonable and prudent
------------------------------
Yep, Mine did ! When we bought our Stealth at the end of June, it had
126,000 MI on the clock. We bought it from the original owner, and she
said it was never done. At 128,000 I did it, and when I pulled the top
timing cover, I was surprised at how good of condition it was in. When I touched
it though to see how much slack was in it, one of the cams immediately
spun a few teeth. So it was time for the full 60K. Good thing I bought
everything in advance. Dave Thrower 92 Stealth R/T TT
------------------------------
Date: Sat, 21 Dec 2002 22:07:45 -0800
From: "Tigran Varosyan" <
tigran@tigran.com>
Subject: RE:
Team3S: Premium fuel
You cannot really hear ping. A mechanic that knows what to listen for can
barely hear it in the car if he is listening for it and everything is
turned off/rolled up. Likely on your drive up the mountains you knocked
the hell out of your motor.
However, contrary to popular believe, Octane does not produce power. There
is no more power in 86 octane than there is in 92. Octane prevents
premature detonation of the mixture which is destructive to your engine.
(NOTE: Preventing detonation allows for being able to run higher
compression/boost etc which makes more power.) Premature detonation
happens when the mixture is hot, dense (from the turbo) and compressed (in
the cylinder). You CAN run mid grade or low grade in your car. I tried it once
with the knock sensor being monitored. Basically, bypass your stock boost
control solenoid and hook up the waste gates straight to the Y-Pipe. You
will be running 6PSI boost. Don't go over 5000RPM and you will be fine. However,
if you are willing to live with 6psi boost and 5000RPM redline, you may be
better off getting another car :)
Now I just read you have an NA... You will need to find a way to lower the
compression of the motor and stay at a lower rev to use lower grade
stuff... Few ways of doing that but I wont bother listing them because
again, if you want to save money by using low octane fuel, you need another car.
It is too much work to lower compression.
Basically, with your car the way it is, you absolutely want to have the
fuel it was made for.
Above statements made based on my datalogging on a 92 VR4, reading about
Octane on about half dozen technical websites. Matter of fact,
howstuffworks.com has a good explanation.
Tyson
PS. "Need to get another car" means that it is too much work to do the mod
and goes against what the 3000GT was made to do.
------------------------------
Has anyone heard of the recall for the '91- '93 3000gt window rubber seal??
It is a Recall and can be found on ALL DATA program listing. the rubber seal
they made was fixed in mid '93 on. The problem is the rubber seal all the
way in the front corner by the side mirror after usage tends to break and a
piece a few inches long get pulled up with the window when you roll is up.
my car ('92 3000gt SL) does this. And on the Recall notice it said it has
been known to cause door problems such as with sending units like the
automatic door locks etc....my driver side doorlocks both doors but does not
unlock both unless it is completely closed. and sometimes doesn't work at
all
when I open the door in a certain position.
If anyone is
familiar with this I'd really appreciate the info. I know the
dealer is
required to fix the seal for free but what about the locks?
thanx...
Mike Mills
'92 3000gt SL
Metallic white
------------------------------
Date: Sun, 22 Dec 2002 08:44:54 -0800
From: "eK2mfg" <
eK2mfg@attbi.com>
Subject: Team3S:
OT Car fax account
looking for a new or used car? I just got a 30 day unlimited account if
your interested.
email me at
ek2mfg@attbi.com with
your vin.....donations welcome....It cost me 20$ for it but the info for
me was worth every penny....still, if you feel compelled to send me money I will
take it :)
bobk.
getting a new/used car for the rebuild :)
------------------------------
The 6G72 DOHC N/A engine is pretty run of the mill now, but when it was
introduced in the 3000GT in 91, it was a pretty high tech block. The 10.1
compression ratio, along with the high redline of 7000 RPMs, is really
suited
for the better combustion properties of premium fuel. As others have
pointed
out, you cannot always hear knock. And perhaps your gas
mileage and power
didn't suffer from one fill up, but I am willing to bet
you that if you run
the car about 700-800 miles on regular you will notice a
difference.
One thing I am not sure of but would tend to think is that the "cocktail"
of
chemicals that a gas company puts into its fuel would be of a higher
grade on
premium, as in the detergents. Does 87 Octane clean like 93?
I saw a guy pull into the local no name gas station and begin pumping 87
octane into his brand new C5. It is of course your choice, but my point is
that if you expect sports car performance, and pay the money and insurance
and repairs, and time, and effort, (we could all go on. . .) for a sports
car, then why not pay the extra for premium?
Mike
- -97 SL Running on 93 Amoco ultimate.
------------------------------
End of Team3S: 3000GT & Stealth V2
#32
**************************************