I'll bite. Tell me more.
Can't really, without actually designing the thing!
But all you're really doing is making an out-of-range
detector for one or two of the analog instruments, and
driving an incandescent lamp.
Exactly the same as the low-fuel lamp in my pickup truck,
which unlike the MB s
I'll bite. Tell me more.
Randy B
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Jim Cathey
Sent: Tuesday, April 25, 2006 12:27 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
> So, what is the best way to add a nice bright idiot
So, what is the best way to add a nice bright idiot light so that I
will quickly see it if the oil pressure drops
off while I am driving?
A simple comparator (LM311?) watching the signal to the gauge
ought to do it. Entirely as a bolt-on to the back of the
instrument cluster.
-- Jim
amage a
driveline/PDL/Diff/clutch. $aveS many dollar$ with le$$ downtime for
repair. Get my drift?
Luther
From: "Peter Frederick" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED], "Mercedes Discussion List" <[EMAIL PROTECTED]>
Cc:
Subject: Re: [MBZ] Idiot Needle
elaborate and fancy way to do this on an MB Diesel,
right?
Randy B
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Loren Faeth
Sent: Monday, April 24, 2006 6:17 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
I put oil temp and oil pressure
Let me check on that, I'll respond tomorrow from work.
On Mon, 24 Apr 2006 21:00:29 -0500, Peter Frederick <[EMAIL PROTECTED]>
wrote:
But is it a planetary gear tranny like a benz or a chevy, or an
automatically shifted constant mesh tranny? There is a difference, and
although I'm out of to
But is it a planetary gear tranny like a benz or a chevy, or an
automatically shifted constant mesh tranny? There is a difference, and
although I'm out of touch, I do know that for many years there were few
if any automatics in big trucks because they didn't hold up. GM spent a
fortune in the
Hydrak is back, with a computer, this time!
At 07:53 PM 4/24/2006, you wrote:
swift sucks.
Luther Gulseth wrote:
> "there is a reason over-the-road trucks don't have automatics." I must
beg to differ. Current technology has the situation in automatics much
more lucrative than a manual tran
not car auto trans. those are allisons.
At 07:51 PM 4/24/2006, you wrote:
over the road trucks do to have autos now days
Peter Frederick wrote:
> No, the 727 type is long dead, alas, as they were by far the best of
> the American automatics. The current ones are a complete re-design,
> and ar
swift sucks.
Luther Gulseth wrote:
"there is a reason over-the-road trucks don't have automatics." I must beg to
differ. Current technology has the situation in automatics much more lucrative than a
manual trans. The OTR auto's are a hydraulic/brain control of the same manual gear box.
T
over the road trucks do to have autos now days
Peter Frederick wrote:
No, the 727 type is long dead, alas, as they were by far the best of
the American automatics. The current ones are a complete re-design,
and are built in Mexico. For a while, the rework rate was 100%.
Everyone had tr
006 9:55 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
No, the 727 type is long dead, alas, as they were by far the best of
the American automatics. The current ones are a complete re-design,
and are built in Mexico. For a while, the rework rate was 100%.
Everyone had trouble w
I put oil temp and oil pressure gauges on my 200D because i wanted to find
out what is really going on. With a factory short block, the 200D will
generate over 100 PSI cold. I have never tried to see how high it will
go. I drive it in a manner so as to not go over 100PSI. After it warms up
Cool. I bet they make that stout-sonding whining as they wind up. (of course
the 727 in big block and small block version has a nice distinctive whining
sound too). As kids, we used to like listening to the Blue Bird busses go by
(our private school couldn't afford them). You heard that tranny and
On 4/24/06, Jim Cathey <[EMAIL PROTECTED]> wrote:
>
>
> With modern control electronics (rather than analog fluidics computers)
> the resurrection of the Hydrak(ula) approach to an automatic
> transmission
> is viable. Everything old is new again!
>
I'm waiting for steam cars to come back. You t
Normal automatics have trouble at the torque loads developed by large
diesel engines and large cargo capacity -- very difficult to keep them
from slipping.
Yeah, with only one clutch you can make it a big beefy mother so it'll
survive, but a planetary slushbox needs half a dozen of them...
With
My point exactly -- those are NOT planetary gear internal clutch
shifted "slushboxes", they are automatically shifted constant mesh
"manual" trannies (similar to the Renault and Citroen trannies of days
gone by). I assume there is some sort of hydraulic coupling or torque
converter and a normal
"there is a reason over-the-road trucks don't have automatics." I must beg to
differ. Current technology has the situation in automatics much more lucrative
than a manual trans. The OTR auto's are a hydraulic/brain control of the same
manual gear box. The reasons for this being a better syst
No, the 727 type is long dead, alas, as they were by far the best of
the American automatics. The current ones are a complete re-design,
and are built in Mexico. For a while, the rework rate was 100%.
Everyone had trouble with automatics and big truck diesels -- there is
a reason over-th
Tom Hargrave wrote:
>
> Kaleb,
>
> My Wife works for Daimler-Chrysler...
>
> I do know that the company has been very proactive with their warrantee /
> recall program. It's more than I can say for some other auto makers.
I've been trying to get D-C to honor a rustproofing warranty since 1997.
"Kaleb C. Striplin" wrote:
>
> Everyone is forgetting how crappy the dodge trannies are, even the stick
> shifts dont hold up well in those trucks. I have have been told they
> fixed that issue within the last year or so though.
>
Now it's my turn to maybe get it wrong going by memory, but IIRC
Tom Hargrave wrote:
There actually is an advantage to a real "idiot light". There's nothing like
a red light popping on to grab yout attention.
Some GM cars have a red light next to the top or bottom of each gauge
(depending on which is the "danger zone") that turns on, accompanied by
a warni
That surprises me - BUT - I readily admit I don't know what's been going on
with Chrysler past about 1974 or so. I thought the automatics were still
Torquflites, which have the well-deserved nickname "bulletproof" (at least
the 727 T-flites). Only now they probably have an overdrive.
Brian
On 4/2
On Sun, 23 Apr 2006 20:22:43 -0500 "Tom Hargrave" <[EMAIL PROTECTED]>
wrote:
> 87 - 89 were really bad years & they rebuilt a lot of transmissions for
> free.
>
> They also had issues with the V6 Misubishi engines. The valve geometry
> was wrong and the valve guides would wear egg shaped in less
nother
pre-97' (old body style, you can keep balljoints in it) and drive it into the
ground...
-Curt
Date: Sun, 23 Apr 2006 10:37:42 -0500
From: "Kaleb C. Striplin" <[EMAIL PROTECTED]>
Subject: Re: [MBZ] Idiot Needle
To: Mercedes Discussion List <[EMAIL PROTECTE
Craig McCluskey wrote:
We had an '89 Grand Caravan that started leaking transmission fluid around
'92 or so. I took it to a local independent to have the pan gasket
replaced, but then decided to take it to the dealer. They completely
rebuilt the transmission at no charge.
The old three-speed a
Cavitation is a result of the temporary enlargement of the bore during
the injection stroke. It's a problem in all direct injection engines
due to the sharper peak pressure increase (IDI engines have a smoother
pressure rise), and is a particular problem in some Ford Powerstrokes
because they
On Sun, 23 Apr 2006 16:53:10 -0500 "Tom Hargrave" <[EMAIL PROTECTED]>
wrote:
> She gets the inside scoop of a lot of issues & they were having serious
> tranny issues during the years I mentioned. There may have been problems
> with later years but not like the late 80's & early 90's.
>
> I do kn
There actually is an advantage to a real "idiot light". There's
nothing like
a red light popping on to grab yout attention.
Yes, the Check Engine light should _also_ mean "Look at the gauges NOW!"
I've thought about retrofitting a "Check Gauges" light into our cars
that have electric oil pressu
I was talking aobut frod, not DC, but yes, DC has gotten better as far
as trucks go, I always heard the trannies, even the manual ones, were
not worth a crap behind the cumming till the last couple of model years.
Tom Hargrave wrote:
Kaleb,
My Wife works for Daimler-Chrysler and we've owned
ED] [mailto:[EMAIL PROTECTED]
On Behalf Of Kaleb C. Striplin
Sent: Sunday, April 23, 2006 4:24 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
Actually, I have always heard just the oposite, the older ones were better,
newer ones had the problems, cavitation etc. Dont know becaus
Actually, I have always heard just the oposite, the older ones were
better, newer ones had the problems, cavitation etc. Dont know because
I have never had one.
Tom Hargrave wrote:
There were real issues in the late 80's, early 90's and the problems have
been fix'd for a long time.
Thanks,
Tom Hargrave
256-656-1924
www.kegkits.com
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Jim Cathey
Sent: Sunday, April 23, 2006 8:22 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
> So basically, we just know how the gauge should r
23, 2006 10:38 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
Everyone is forgetting how crappy the dodge trannies are, even the stick
shifts dont hold up well in those trucks. I have have been told they fixed
that issue within the last year or so though.
Mitch Haley wrote:
Everyone is forgetting how crappy the dodge trannies are, even the
stick
shifts dont hold up well in those trucks. I have have been told they
fixed that issue within the last year or so though.
The bolt-on 5th gear comes off the shaft. No real penalty except
that you lose 5th and have to driv
day, April 23, 2006 6:22 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
Do not bearing clearances themselves open up when hot? A third factor,
if so. Another factor, if operating, is if your hot idle speed is any
lower than the cold idle speed. A slower oil pump develops less
Everyone is forgetting how crappy the dodge trannies are, even the stick
shifts dont hold up well in those trucks. I have have been told they
fixed that issue within the last year or so though.
Mitch Haley wrote:
I've got a better one for you. A friend of mine purchased a
new Ford 3/4 ton
Mercedes says anything over .5 bar at hot idle is just fine.
Tom Hargrave wrote:
Jim's correct - what matters is hot oil pressure at idle or a pressure drop
at running speed & both are delivered by Mercedes oil pressure gauge. Even
the American gauges that read actual pressure at running speeds
That is exactly how it is supposed to work.
Zoltan Finks wrote:
I've wondered for some time now, and it came up again tonight as I told the
wife what to look for when she drives the 240D:
Why does the oil pressure gauge simply peg at 3 almost all the time? In
doing so, it is less a gauge, and
edless to say, Don was not a
> > happy
> > camper! He's still driving the truck & he has a real oil pressure gauge
> > mounted under the dash but he'll probably not purchase another one. Ford
> > saved $6.00 and lost a loyal customer in the process.
> >
So basically, we just know how the gauge should read, and if doesn't,
then
there's a problem.
Yes, and because it is a real gauge (though with an expanded scale)
you can see enough of what's going on to get advance warning of
problems.
pressure in my 440 V8. All I know is that I get a really
I'm curious, which engine is it?
Thanks,
Tom Hargrave
256-656-1924
www.kegkits.com
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Desert Rat
Sent: Sunday, April 23, 2006 1:33 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
To
m Hargrave
256-656-1924
www.kegkits.com
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Zoltan Finks
Sent: Sunday, April 23, 2006 2:07 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
Wow. Interesting to know that about the Ford in tha
On Apr 23, 2006, at 1:09 AM, Zoltan Finks wrote:
It stays pegged except when the engine is completely warm, and it's
hot
outside, and I have come down to idle.
Brian
And it lived happily ever after.
Johnny B.
I Mac Therefore I am
Tom Hargrave wrote:
I've got a better one for you. A friend of mine purchased a new Ford 3/4 ton
diesel truck a few years back. He noticed that the oil pressure gauge always
read mid level regardless of engine speed and being an Engineer, he knew
better. He took it to Ford for diagnosis and found
gt;
>
> Thanks,
> Tom Hargrave
> 256-656-1924
> www.kegkits.com
>
> -----Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> On Behalf Of Jim Cathey
> Sent: Sunday, April 23, 2006 12:25 AM
> To: Mercedes Discussion List
> Subject: Re: [MBZ] Idio
gt; www.kegkits.com
>
> -Original Message-
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> On Behalf Of Jim Cathey
> Sent: Sunday, April 23, 2006 12:25 AM
> To: Mercedes Discussion List
> Subject: Re: [MBZ] Idiot Needle
>
> > Why does the oil pressure g
r in the process.
Thanks,
Tom Hargrave
256-656-1924
www.kegkits.com
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Jim Cathey
Sent: Sunday, April 23, 2006 12:25 AM
To: Mercedes Discussion List
Subject: Re: [MBZ] Idiot Needle
> Why does the oil pressur
Why does the oil pressure gauge simply peg at 3 almost all the time? In
doing so, it is less a gauge, and more an idiot light. Why didn't
Mercedes
redesign the gauge so that it provided precise feedback as to the
pressure?
It's an interesting compromise of gauge and idiot light. Anything abov
I've wondered for some time now, and it came up again tonight as I told the
wife what to look for when she drives the 240D:
Why does the oil pressure gauge simply peg at 3 almost all the time? In
doing so, it is less a gauge, and more an idiot light. Why didn't Mercedes
redesign the gauge so that
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