As I read about the poster's problem, I tried to remember; I think it was mere coincidence but I can't quite remember.... This problem happened just after I bought the car and I suspect that the previous owner parted with it for short money, thinking that the fuel pump was failing. It was really annoying, having the car essentially governored. --- On Sun, 6/19/11, briankk <briankk@att.net> wrote:
|
Re: [diesel_mercedes] Here's a good one for you guys
[diesel_mercedes] Fuel Milage Check 1984 300CD Auto W/ AC
279 miles 24.6 MPG .
AC used , 4oz. of MMO in the tank last fillup .
-Nate
__._,_.___
MARKETPLACE
.
__,_._,___
Re: [diesel_mercedes] Here's a good one for you guys
| Jeez.. That's insidious. how did you find the problem? bk --- On Sun, 6/19/11, john public <brad_macaboy1234@yahoo.com> wrote:
|
Re: [diesel_mercedes] Re: Glow plugs
| Cheap is good, but longevity is what I'm about. My big Suzuki is down for some bearings in the rear suspension, makes glow plug testing quick and easy, I grab the plug in vice grips and touch the plug connection to the Suzuki battery positive terminal, the back of the vice grips to the negative... When working in full daylight, I'll dip the nose of the plug in diesel and test, smoke happens before glow.. bk --- On Sun, 6/19/11, lastarmenian <macjava@aol.com> wrote:
|
__._,_.___
MARKETPLACE
.
__,_._,___
[diesel_mercedes] Replace 300D with 240D both from w123?
Hello;
Can the 240D that came from a W123 be used to replace a 300D in a W123 without any modifications? The 240D motor is sitting around gathering dust as is the 300D which has a bad head and Pappy got little bread. It is an automatic and the flywheel may prove to be the killjoy here.
<>< Don
__._,_.___
.
__,_._,___
Re: [diesel_mercedes] Here's a good one for you guys
Thanks, Carl. Bruce suspected that as well.
Mark in Texas
On 6/19/2011 8:32 PM, Alan Boucher wrote:
Mark in Texas
On 6/19/2011 8:32 PM, Alan Boucher wrote:
On 6/19/2011 9:12 PM, diyernh wrote: I also had a similar problem with a Dodge van. The fuel pickup came out the top of the tank, but there was an internal air/fuel leak on the pickup tube in the tank.. Everything was fine with a full tank. After that it went downhill. The PO had added an electric fuel pump which more or less solved the problem until I redid the engine and eliminated the electric pump.I was thinking a leak in the fuel line, letting in air. As the tank level drops, a higher vacuum is needed to lift the fuel. This would cause the surging. I would figure the lift pump would be more steady.
This is NOT from experience with Mercedes, just other vehicles. I ended up stranded when my fuel filter leaked air in my duramax. It doesn't take much of a leak to pull in enough air to kill the engine.
You might want to take a gander at the fuel lines while you are under there.
Carl
On 6/19/2011 8:16 PM, john public wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: Re: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 7:07 PM
You likely hit it. Thanks,
Mark
On 6/19/2011 5:32 PM, Nate Rector wrote:
Yes pump warm and not pumping good.
--- On Sun, 6/19/11, Mark Atkins <mratkins@embarqmail.com> wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: Re: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 5:01 PM
Thanks, Nate. I suspected it but the problem is worse as the car warms up. It runs pretty well for the first 20-25 miles. Would that support the lift pump theory?
Mark
On 6/19/2011 3:41 PM, Nate Rector wrote:
sounds like a lift pump is almost gone.
--- On Sun, 6/19/11, Mark Atkins <mratkins@embarqmail.com> wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 3:29 PM
My friend has an '85 300SD with about 210K miles. He bought it a year, or so, ago and has had a recurring problem that is driving us crazy. We went on an 800 mile round trip "adventure" this weekend that allows me to share the problem accurately.
Shortly after he bought the car he went on a trip and experienced a loss of power which reduced the top speed to ~45 mph. He returned home and changed the fuel filters thinking that was the problem. Since we have taken a few 400 mile round trips in the car and it would lose power intermittently but never limit the speed to less than about 60 mph. He discovered that topping the fuel off seemed to help with the problem, however, the problem has occurred more and more frequently as time has passed. This weekend the problem was so bad that any overpass the car would lose power and speed would drop to 40-45 mph and a couple of large bridges it would only top them at 15-20 mph. Top speed on level ground (I-10 in southern LA and Texas) was 40-45 mph the entire return trip. That, my friends, SUCKS! One bridge in LA and one over the Houston ship channel, on the return trip, the speedo would barely indicate movement (as confirmed by our sight!). Houston to New Orleans is usually a 6 hour trip, each way, but we spent 10.5 hours getting there and 12.5-13 returning. Unacceptable!
We have checked the fuel system from the tank strainer to the injector pump and it is not plugged. The car surges at WOT similar to a "hit and miss" type engine (see YouTube for example). I suspect the problem is the injector pump but do not know of a way to troubleshoot it.
The car is otherwise a beautiful example of a vintage SD and has been well cared for it's entire life.
Any suggestions?
Thanks,
Mark in Texas
--
--
--
--
Re: [diesel_mercedes] Here's a good one for you guys
Thanks, John. We will give it a look as well.
Mark in Texas
On 6/19/2011 7:16 PM, john public wrote:
Mark in Texas
On 6/19/2011 7:16 PM, john public wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: Re: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 7:07 PM
You likely hit it. Thanks,
Mark
On 6/19/2011 5:32 PM, Nate Rector wrote:
Yes pump warm and not pumping good.
--- On Sun, 6/19/11, Mark Atkins <mratkins@embarqmail.com> wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: Re: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 5:01 PM
Thanks, Nate. I suspected it but the problem is worse as the car warms up. It runs pretty well for the first 20-25 miles. Would that support the lift pump theory?
Mark
On 6/19/2011 3:41 PM, Nate Rector wrote:
sounds like a lift pump is almost gone.
--- On Sun, 6/19/11, Mark Atkins <mratkins@embarqmail.com> wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 3:29 PM
My friend has an '85 300SD with about 210K miles. He bought it a year, or so, ago and has had a recurring problem that is driving us crazy. We went on an 800 mile round trip "adventure" this weekend that allows me to share the problem accurately.
Shortly after he bought the car he went on a trip and experienced a loss of power which reduced the top speed to ~45 mph. He returned home and changed the fuel filters thinking that was the problem. Since we have taken a few 400 mile round trips in the car and it would lose power intermittently but never limit the speed to less than about 60 mph. He discovered that topping the fuel off seemed to help with the problem, however, the problem has occurred more and more frequently as time has passed. This weekend the problem was so bad that any overpass the car would lose power and speed would drop to 40-45 mph and a couple of large bridges it would only top them at 15-20 mph. Top speed on level ground (I-10 in southern LA and Texas) was 40-45 mph the entire return trip. That, my friends, SUCKS! One bridge in LA and one over the Houston ship channel, on the return trip, the speedo would barely indicate movement (as confirmed by our sight!). Houston to New Orleans is usually a 6 hour trip, each way, but we spent 10.5 hours getting there and 12.5-13 returning. Unacceptable!
We have checked the fuel system from the tank strainer to the injector pump and it is not plugged. The car surges at WOT similar to a "hit and miss" type engine (see YouTube for example). I suspect the problem is the injector pump but do not know of a way to troubleshoot it.
The car is otherwise a beautiful example of a vintage SD and has been well cared for it's entire life.
Any suggestions?
Thanks,
Mark in Texas
--
--
--
--
Re: [diesel_mercedes] Here's a good one for you guys
On 6/19/2011 9:12 PM, diyernh wrote:
I also had a similar problem with a Dodge van. The fuel pickup came out the top of the tank, but there was an internal air/fuel leak on the pickup tube in the tank.. Everything was fine with a full tank. After that it went downhill. The PO had added an electric fuel pump which more or less solved the problem until I redid the engine and eliminated the electric pump.I was thinking a leak in the fuel line, letting in air. As the tank level drops, a higher vacuum is needed to lift the fuel. This would cause the surging. I would figure the lift pump would be more steady.
This is NOT from experience with Mercedes, just other vehicles. I ended up stranded when my fuel filter leaked air in my duramax. It doesn't take much of a leak to pull in enough air to kill the engine.
You might want to take a gander at the fuel lines while you are under there.
Carl
On 6/19/2011 8:16 PM, john public wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: Re: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 7:07 PM
You likely hit it. Thanks,
Mark
On 6/19/2011 5:32 PM, Nate Rector wrote:
Yes pump warm and not pumping good.
--- On Sun, 6/19/11, Mark Atkins <mratkins@embarqmail.com> wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: Re: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 5:01 PM
Thanks, Nate. I suspected it but the problem is worse as the car warms up. It runs pretty well for the first 20-25 miles. Would that support the lift pump theory?
Mark
On 6/19/2011 3:41 PM, Nate Rector wrote:
sounds like a lift pump is almost gone.
--- On Sun, 6/19/11, Mark Atkins <mratkins@embarqmail.com> wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 3:29 PM
My friend has an '85 300SD with about 210K miles. He bought it a year, or so, ago and has had a recurring problem that is driving us crazy. We went on an 800 mile round trip "adventure" this weekend that allows me to share the problem accurately.
Shortly after he bought the car he went on a trip and experienced a loss of power which reduced the top speed to ~45 mph. He returned home and changed the fuel filters thinking that was the problem. Since we have taken a few 400 mile round trips in the car and it would lose power intermittently but never limit the speed to less than about 60 mph. He discovered that topping the fuel off seemed to help with the problem, however, the problem has occurred more and more frequently as time has passed. This weekend the problem was so bad that any overpass the car would lose power and speed would drop to 40-45 mph and a couple of large bridges it would only top them at 15-20 mph. Top speed on level ground (I-10 in southern LA and Texas) was 40-45 mph the entire return trip. That, my friends, SUCKS! One bridge in LA and one over the Houston ship channel, on the return trip, the speedo would barely indicate movement (as confirmed by our sight!). Houston to New Orleans is usually a 6 hour trip, each way, but we spent 10.5 hours getting there and 12.5-13 returning. Unacceptable!
We have checked the fuel system from the tank strainer to the injector pump and it is not plugged. The car surges at WOT similar to a "hit and miss" type engine (see YouTube for example). I suspect the problem is the injector pump but do not know of a way to troubleshoot it.
The car is otherwise a beautiful example of a vintage SD and has been well cared for it's entire life.
Any suggestions?
Thanks,
Mark in Texas
--
--
--
Re: [diesel_mercedes] Here's a good one for you guys
I was thinking a leak in the fuel line, letting in air. As the tank level drops, a higher vacuum is needed to lift the fuel. This would cause the surging. I would figure the lift pump would be more steady.
This is NOT from experience with Mercedes, just other vehicles. I ended up stranded when my fuel filter leaked air in my duramax. It doesn't take much of a leak to pull in enough air to kill the engine.
You might want to take a gander at the fuel lines while you are under there.
Carl
On 6/19/2011 8:16 PM, john public wrote:
This is NOT from experience with Mercedes, just other vehicles. I ended up stranded when my fuel filter leaked air in my duramax. It doesn't take much of a leak to pull in enough air to kill the engine.
You might want to take a gander at the fuel lines while you are under there.
Carl
On 6/19/2011 8:16 PM, john public wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: Re: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 7:07 PM
You likely hit it. Thanks,
Mark
On 6/19/2011 5:32 PM, Nate Rector wrote:
Yes pump warm and not pumping good.
--- On Sun, 6/19/11, Mark Atkins <mratkins@embarqmail.com> wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: Re: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 5:01 PM
Thanks, Nate. I suspected it but the problem is worse as the car warms up. It runs pretty well for the first 20-25 miles. Would that support the lift pump theory?
Mark
On 6/19/2011 3:41 PM, Nate Rector wrote:
sounds like a lift pump is almost gone.
--- On Sun, 6/19/11, Mark Atkins <mratkins@embarqmail.com> wrote:
From: Mark Atkins <mratkins@embarqmail.com>
Subject: [diesel_mercedes] Here's a good one for you guys
To: diesel_mercedes@yahoogroups.com
Date: Sunday, June 19, 2011, 3:29 PM
My friend has an '85 300SD with about 210K miles. He bought it a year, or so, ago and has had a recurring problem that is driving us crazy. We went on an 800 mile round trip "adventure" this weekend that allows me to share the problem accurately.
Shortly after he bought the car he went on a trip and experienced a loss of power which reduced the top speed to ~45 mph. He returned home and changed the fuel filters thinking that was the problem. Since we have taken a few 400 mile round trips in the car and it would lose power intermittently but never limit the speed to less than about 60 mph. He discovered that topping the fuel off seemed to help with the problem, however, the problem has occurred more and more frequently as time has passed. This weekend the problem was so bad that any overpass the car would lose power and speed would drop to 40-45 mph and a couple of large bridges it would only top them at 15-20 mph. Top speed on level ground (I-10 in southern LA and Texas) was 40-45 mph the entire return trip. That, my friends, SUCKS! One bridge in LA and one over the Houston ship channel, on the return trip, the speedo would barely indicate movement (as confirmed by our sight!). Houston to New Orleans is usually a 6 hour trip, each way, but we spent 10.5 hours getting there and 12.5-13 returning. Unacceptable!
We have checked the fuel system from the tank strainer to the injector pump and it is not plugged. The car surges at WOT similar to a "hit and miss" type engine (see YouTube for example). I suspect the problem is the injector pump but do not know of a way to troubleshoot it.
The car is otherwise a beautiful example of a vintage SD and has been well cared for it's entire life.
Any suggestions?
Thanks,
Mark in Texas
--
--
--
Subscribe to:
Posts (Atom)
