Alex Chamberlain wrote:
I'm glad you did---now I know the quick and dirty way to crank up the
boost on my '91 convertible Turbo without looking for computer
upgrades. ;)
Early 1980's, simple pressure dashpot wastegate actuator. Back off the locknut
on the actuator shaft, remove the e-clip, s
On Fri, May 29, 2009 at 12:57 PM, Mitch Haley wrote:
> tyler wrote:
>
>> It's amazing that Saab was running over 2 bar with the stock turbo-
>
>
> It's amazing that I didn't catch that error in my message before I sent it.
> Also amazing that I sent it to the list when I just wanted to send it to
Detonation is more the cracked piston route which can be
Diesels don't detonate, which is a flame front running
faster than the speed of sound in the medium. (If I recall
correctly.) Diesel fuel is sprayed into a hot chamber,
and burns as it goes in. Late-coming fuel doesn't find
any oxygen t
Yea, Wilton, but our "breed" is no longer in vogue.
The breed may not be in vogue, but it is certainly not dead yet.
Rick
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Yea, Wilton, but our "breed" is no longer in vogue.
U NO LOL?
On Fri, May 29, 2009 at 9:54 PM, WILTON wrote:
> So do I.
>
> Wilton
>
> - Original Message - From: "Wonko the Sane"
> To: "Mercedes Discussion List"
> Sent: Friday, May
So do I.
Wilton
- Original Message -
From: "Wonko the Sane"
To: "Mercedes Discussion List"
Sent: Friday, May 29, 2009 9:50 PM
Subject: Re: [MBZ] Mercedes 240D Manual Turbocharged
In my eyes, your "stock" rose by ten points by saying "slowly&quo
No not unless you introduce more air than stock.
As I attempted to explain earlier, it is the amount of air being
compressed that determines temperatures.
The amount of fuel does not influence temperature, neither does the
timing of the fuel injection. Incorrect fuel delivery for whatever
reaso
> > On May 29, 2009, at 3:46 PM, tyler wrote:
> >
> > This is only true on a gasoline engine which risks
> > pre-detonation. A turbo diesel simply has reduced power when
> > it runs lean under boost, but usually lower rather than
> > higher EGTs.
> Mathieu J. Cama wrote:
>
> Then please explain th
In my eyes, your "stock" rose by ten points by saying "slowly" rather than
"slow" -- sorry, I notice that sort of thing.
On Fri, May 29, 2009 at 8:36 PM, Hendrik & Fay wrote:
> OK lets get back to basic Diesel principles, nice and slowly...
>
--
The only absolute is that everything is rel
OK lets get back to basic Diesel principles, nice and slowly...
During the intake stroke a Diesel engine either sucks in air (NA) or has
air forced into the chamber (turbo/supercharger).
Now the amount of air that is supposed to be in an engine is calculated
so as to set up the fuel delivery
One thing we are forgetting is that MB does not like turbo Diesel manual
transmission cars. This is perhaps the big reason they did not turbo the
240D, there may be other reasons such as the fact that they offered the
300D NA alongside the 240D, for those who wanted a bit of extra grunt. I
woul
I think I just realized something he's been missing all this time. This is a
perfect excuse to have more cars... One to keep at home, one to keep at work,
and the bicycle to shuttle between them...
-Curt
Date: Fri, 29 May 2009 14:00:50 -0400
From: Mitch Haley
Subject: Re: [MBZ] Mercedes
a rod.
-Curt
Date: Fri, 29 May 2009 10:47:12 -0700
From: tyler
Subject: Re: [MBZ] Mercedes 240D Manual Turbocharged
To: Mercedes Discussion List
Message-ID: <4a201fa0.3070...@usermail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
There's no reason to have an i
On Fri, 29 May 2009 17:50:23 -0500 OK Don wrote:
> I believe that Tyler is correct -- a Diesel engine runs with max
> available air all the time, and controls power by adding/subtracting
> fuel. More fuel, more fire, more heat. A vergasser requires the correct
> stoichiometric proportions to run
"Nooner." ;<
Wilton
- Original Message -
From: "Wonko the Sane"
To: "Mercedes Discussion List"
Sent: Friday, May 29, 2009 6:45 PM
Subject: Re: [MBZ] Mercedes 240D Manual Turbocharged
Four times a day. I go home for lunch.
On Fri, May
I believe that Tyler is correct -- a Diesel engine runs with max available
air all the time, and controls power by adding/subtracting fuel. More fuel,
more fire, more heat. A vergasser requires the correct stoichiometric
proportions to run correctly. Too lean, and it's too hot. Too rich, and it's
t
Four times a day. I go home for lunch.
On Fri, May 29, 2009 at 9:23 AM, Mitch Haley wrote:
> Curt Raymond wrote:
>
>> I think I'm one of the higher mileage current 240D drivers, 330 miles this
>> week, can anybody top that?
>>
>
> Wonko's got you beat. He drives 330 yards two times a day. ;-)
>
Or any other Otto cycle engine.
tyler wrote:
Yes- in (and only in) a gasoline engine.
Tyler
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Yes- in (and only in) a gasoline engine.
Tyler
Kaleb C. Striplin wrote:
No, you have that backward, lean is hot, too much fuel cools things off.
tyler wrote:
Is it possible the pistons melted for some reason other than a lean
condition? I can't explain why those four vehicles melted pistons
On May 29, 2009, at 5:43 PM, tyler wrote:
I think what you are describing is something else entirely from a lean
condition. If the injectors had a poor spray pattern and/or the wrong
opening pressure- they could have been injecting fuel too soon
(leaking) which would cause similar problems t
No, you have that backward, lean is hot, too much fuel cools things off.
tyler wrote:
Is it possible the pistons melted for some reason other than a lean
condition? I can't explain why those four vehicles melted pistons
since I haven't seen them- but I can't imagine it being caused by a
lean c
your engine was also built for a turbo
tyler wrote:
Yep, I've got a 1987 745 Turbo. It has 250k miles, I drive it and use
it VERY hard, and it runs (but doesn't look) like new.
Tyler
Peter Hertzing wrote:
I'm with you Tyler - I have pushed redblock B230s hard in 740Ts for well
over 300K with
On May 29, 2009, at 5:35 PM, Mitch Haley wrote:
Mathieu J. Cama wrote:
You don't know what the heck you're talking about?
Sure, not a clue.
Or you didn't mean to say "diesel"?
Must have been a typo.
If an excessive lean condition melted diesels, they'd all drop dead
idling in traff
I think what you are describing is something else entirely from a lean
condition. If the injectors had a poor spray pattern and/or the wrong
opening pressure- they could have been injecting fuel too soon (leaking)
which would cause similar problems to pre-detonation in a gasoline
motor. This ne
On May 29, 2009, at 5:20 PM, tyler wrote:
Is it possible the pistons melted for some reason other than a lean
condition? I can't explain why those four vehicles melted pistons
since I haven't seen them- but I can't imagine it being caused by a
lean condition. Lean = cold, rich = hot EGTs in
Mathieu J. Cama wrote:
Then please explain the four MB diesel that I directly know of with
melted pistons from an excessive lean condition.
You don't know what the heck you're talking about?
Or you didn't mean to say "diesel"?
If an excessive lean condition melted diesels, they'd all drop dead
Is it possible the pistons melted for some reason other than a lean
condition? I can't explain why those four vehicles melted pistons since
I haven't seen them- but I can't imagine it being caused by a lean
condition. Lean = cold, rich = hot EGTs in a diesel. Surely someone else
can back me up
On May 29, 2009, at 3:46 PM, tyler wrote:
This is only true on a gasoline engine which risks pre-detonation. A
turbo diesel simply has reduced power when it runs lean under boost,
but usually lower rather than higher EGTs. An NA injector pump won't
meter fuel as accurately as one with an AL
tyler wrote:
It's amazing that Saab was running over 2 bar with the stock turbo-
It's amazing that I didn't catch that error in my message before I sent it.
Also amazing that I sent it to the list when I just wanted to send it to Tyler.
On the very early Saab turbos:
The dial markings stop a
This is only true on a gasoline engine which risks pre-detonation. A
turbo diesel simply has reduced power when it runs lean under boost, but
usually lower rather than higher EGTs. An NA injector pump won't meter
fuel as accurately as one with an ALDA, but if tuned conservatively it
won't put t
Having some direct experience with turboed om616s I'll weigh in some
thoughts for what it is worth.
First off, an aftermarket om616 turbo will never be as robust as an
om617A without extensive modifications.
However, it can still be a decent motor and if setup correctly can last
quite a whil
There was a rare factory option called Turbo+ which functions similar to
APC and nearly doubles boost for a short period of time under WOT,
adding over 20 horsepower. It's very rare, and not as good as the APC
system.
Stock 740 Turbos do have a knock sensor which retards ignition timing,
whic
Not to my knowledge. I new a lot of guys who have putthe Saab system on the
740
On Fri, May 29, 2009 at 1:14 PM, Mitch Haley wrote:
>
> Did Vulva ever put a system like Saab's APC on the 740 turbo?
>
> I replaced a piston in a 1981 900 Turbo once. (APC came out in 1982) Never
> seen a Mahle pis
Did Vulva ever put a system like Saab's APC on the 740 turbo?
I replaced a piston in a 1981 900 Turbo once. (APC came out in 1982) Never seen
a Mahle piston broke like that before.
My boss took it out for a test drive and asked if the boost gauge (no numbers)
was supposed to swing off scale. F
From: "tyler"
Sent: Friday, May 29, 2009 12:47 PM
They had to make specific tradeoffs to make a cheap, and general purpose
vehicle.
Extremely robust and durable (read over engineered) Absolutely. General
purpose perhaps. Cheap, no. In the 1980's MB automobiles were quite
expensive. My 1985
Curt Raymond wrote:
I've been to chez Wonko and to his office, what he really needs is a
skateboard...
He's got a nice bicycle...
But Don claims he can't transport a 500lb client on it.
I tried to tell him Gary has his own cars...
Mitch.
___
http://www.oki
There's no reason to have an inherent aversion to performance
modifications if they're done properly. As Marshall said, Mercedes
probably knows more about how to engineer a Mercedes than any of us, but
they didn't have hindsight, 30 years of technological advancement, or
specific knowledge of h
I've been to chez Wonko and to his office, what he really needs is a
skateboard...
-Curt
Date: Fri, 29 May 2009 10:23:53 -0400
From: Mitch Haley
Subject: Re: [MBZ] Mercedes 240D Manual Turbocharged
To: Mercedes Discussion List
Message-ID: <4a1feff9.9040...@voyager.net>
Content
Yep, I've got a 1987 745 Turbo. It has 250k miles, I drive it and use it
VERY hard, and it runs (but doesn't look) like new.
Tyler
Peter Hertzing wrote:
I'm with you Tyler - I have pushed redblock B230s hard in 740Ts for well
over 300K with no adverse affects. Keep oil and colent in them and
--- On Fri, 5/29/09, Mountain Man wrote:
> > maybe my memory is faulty.
> mao
Your memory faulty?? What were we talking about anyway??
RH
___
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Curt Raymond wrote:
I think I'm one of the higher mileage current 240D drivers, 330 miles this
week, can anybody top that?
Wonko's got you beat. He drives 330 yards two times a day. ;-)
Mitch.
___
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For new and used parts go to www.ok
I'm with you Tyler - I have pushed redblock B230s hard in 740Ts for well
over 300K with no adverse affects. Keep oil and colent in them and they
will keep performing for you.
You got any volvo's right now?
Peter
On Fri, May 29, 2009 at 2:04 AM, Tyler wrote:
> This reaction amazes me in contra
The only problem that time and time again when this is tried the engine
fails in short order
Tyler wrote:
This reaction amazes me in contrast! I'm also in another online
community- Turbobricks- where adding an enormous turbo to an NA Volvo
is considered a normal reliable daily driver.
I pers
ility to get into serious modification.
To see more folks that are into hot-rodding (snicker, the thought that turning
a 72hp engine to 95hp is "hot rodding" is laughable) check out the forums on
Peach Parts.
-Curt
Date: Fri, 29 May 2009 00:04:41 -0700
From: Tyler
Subject: Re: [MBZ] M
Tyler wrote:
If the turbo conversion was done properly they would have added a large
oil cooler.
This is Benz, the oil cooler is already 1/4 the size of the radiator.
Mitch.
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To searc
Boost doesn't hurt turbo diesels, too rich a fuel mixture or too
advanced injection timing does.
I say BOOST IT. If it's a turbo from a 300D that baby should be good
for 20+psi. Install a new radiator, retard the injection timing a bit
from stock, and adjust the mixture to keep the egts dow
This reaction amazes me in contrast! I'm also in another online
community- Turbobricks- where adding an enormous turbo to an NA Volvo
is considered a normal reliable daily driver.
I personally think you could run tons of boost daily through an
otherwise stock 240D and it would last LONGER t
That is the service I use to create a archive database that can be searched.
Mitch Haley wrote:
Mitch Haley wrote:
Reeves Callaway did a conversion in the late 1970's or 1980.
Nope, it was concurrent with the turbo 300D. Here's the Motor Trend
article, as I posted to the list in 2005. I was
That would be an aftermarket turbo job, engine wont last very long with
that on there.
rdeaf...@aol.com wrote:
Hey Guys,
I have a chance to offer on somebody I know who has a
1982 Black 240D manual transmission that has turbocharger.. It has 140,000
miles & according to
Mitch Haley wrote:
I was a bit surprised to find my email message on the net here:
http://www.mail-archive.com/mercedes@okiebenz.com/msg06053.html
Which is why you must choose your words carefully when posting to an email
list. Such posts can outlive you or come back to haunt you
(Banned
Wonko the Sane writes:
> I suddenly miss Marshall (again).
>
> Check for "melted pistons."
You mean MELTED pistons
Allan
--
1983 300D
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> tyler wrote:
> Just to play devils advocate (if you didn't notice, I like to
> argue...) what harm would the turbo cause that would result in
> premature failure? I know it would put extra stress on
> anything, but the whole engine and drivetrain of a 240D is
> severely overbuilt.
>
> Most olde
Mitch Haley wrote:
Reeves Callaway did a conversion in the late 1970's or 1980.
Nope, it was concurrent with the turbo 300D. Here's the Motor Trend article, as
I posted to the list in 2005. I was a bit surprised to find my email message on
the net here: http://www.mail-archive.com/mercedes@ok
Reeves Callaway did a conversion in the late 1970's or 1980.
It was noticeably slower than a 300SD, but IIRC it was as fast or faster than
the 300D NA of the period. I think when the 1982 300D turbo came out it made the
Callaway setup irrelevant. When I saw a test in Road and Track or Car and Dr
Richard wrote:
> If it's an add on, I'd un-add it. You can probably sell it on Ebay.
I thought there was a guy in your neighborhood that sold add-on turbo.
Perhaps it is in the Hotlanta area - but I recall a guy years ago
that people recommended for quite reasonable design for turbo add-on -
may
There was no factory 240D Turbo. So it's either an engine change to a 617.95
engine or an add on. The former is OK, I guess, if you want to load the
clutch/tranny with torque it was not designed for. ( I'd do it, but I'm as
much a mule as you are an arguer (c: ) The drivetrains are over-en
I suddenly miss Marshall (again).
Check for "melted pistons."
On Thu, May 28, 2009 at 1:46 PM, wrote:
> Hey Guys,
> I have a chance to offer on somebody I know who has a
> 1982 Black 240D manual transmission that has turbocharger.
>
--
The only absolute is that everyth
...@okiebenz.com
[mailto:mercedes-boun...@okiebenz.com]on Behalf Of tyler
Sent: Thursday, May 28, 2009 2:41 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] Mercedes 240D Manual Turbocharged
Just to play devils advocate (if you didn't notice, I like to argue...)
what harm would the turbo cause
Just to play devils advocate (if you didn't notice, I like to argue...)
what harm would the turbo cause that would result in premature failure?
I know it would put extra stress on anything, but the whole engine and
drivetrain of a 240D is severely overbuilt.
Most older 240D engines I see final
rdeaf...@aol.com wrote:
Hey Guys,
I have a chance to offer on somebody I know who has a
1982 Black 240D manual transmission that has turbocharger.
Such a modification will reduce engine life if the fuel was turned up to match
the extra air going in. If the fuel wasn't
If it is an original 616 engine with an after-market turbo, I'd be leary.
That engine was not engineered for a turbo - the increased temps and
pressures. There are significant internal differences between the 5 cylinder
617 turbo and non-turbo engines. Now, if it has a factory turbo'ed 617
engine,
Is this some sort of custom aftermarket turbocharging job? If so, the
quality and reliability depends on how well the job was done, something
nobody can tell without inspecting the vehicle themselves- but it's
unlikely to be as good or reliable as a factory turbocharged vehicle.
There is no re
Hey Guys,
I have a chance to offer on somebody I know who has a
1982 Black 240D manual transmission that has turbocharger.. It has 140,000
miles & according to my MB mechanic who also works on it said it is a
beautiful car-to go for it!! Apparently this owner/friend hur
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