Re: [diesel_mercedes] Newbie question #56 1978 300D fuel pump

 

Rodger, The people using blends in Powerstroke diesels came to the
conclusion that including diesel in the mix causes the blend to create
waxes. I assume these gummed up the injection pump. Bobby

On 9/11/11, rkitt2002 <rkitt@netscape.com> wrote:
> Hello All
>
> My 1978 300D (non turbo) is not running. I suspect that the fuel lift pump
> has quit. I blew the tank screen out with compressed air and added more
> fuel. I will replace the screen next weekend. Now I get fuel to the primary
> filter (it was dry). I have bled the lines. It still will not start.
>
> Is there an easy way to test the lift pump?
>
> I should add that I am running a mix of 1/3 diesel and 2/3 filtered used
> motor oil. It smokes a bit and smells bad, but the car has been running
> fine.
>
> thank you
> Rodger
>
>

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Bobby Yates Emory

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Re: [diesel_mercedes] Newbie question #56 1978 300D fuel pump

 

Rodger, I have a 79 300CD, but am not an expert. I would remove the
fuel return line from the last (back) injector. Get someone to crank.
You should see copious flow. If it does both the lift pump and the
injection pump are working. Another likely problem is the glow plugs
and their power souces. I would not use a blend, but must people
using them include some RUG (regular unleaded gasoline). Bobby

On 9/11/11, rkitt2002 <rkitt@netscape.com> wrote:
> Hello All
>
> My 1978 300D (non turbo) is not running. I suspect that the fuel lift pump
> has quit. I blew the tank screen out with compressed air and added more
> fuel. I will replace the screen next weekend. Now I get fuel to the primary
> filter (it was dry). I have bled the lines. It still will not start.
>
> Is there an easy way to test the lift pump?
>
> I should add that I am running a mix of 1/3 diesel and 2/3 filtered used
> motor oil. It smokes a bit and smells bad, but the car has been running
> fine.
>
> thank you
> Rodger
>
>

--
Sent from my mobile device

Toward freedom,

Bobby Yates Emory

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[diesel_mercedes] Newbie question #56 1978 300D fuel pump

 

Hello All

My 1978 300D (non turbo) is not running. I suspect that the fuel lift pump has quit. I blew the tank screen out with compressed air and added more fuel. I will replace the screen next weekend. Now I get fuel to the primary filter (it was dry). I have bled the lines. It still will not start.

Is there an easy way to test the lift pump?

I should add that I am running a mix of 1/3 diesel and 2/3 filtered used motor oil. It smokes a bit and smells bad, but the car has been running fine.

thank you
Rodger

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[diesel_mercedes] Re: Floor vent vacuum controller 84 300D

 

Door locks seem fine. What part is the servo and where is it located? I searched for it but can't find it in the archives.

Jim

--- In diesel_mercedes@yahoogroups.com, "Mark in Lakewood, CO" <beeser750@...> wrote:
>
> Jim, I have no direct experience with the later Klima system (Klima II), but it's an in-house, Mercedes-built replacement of the original Chrysler-designed system. In general, vacuum leaks are rare within the system itself, but external leaks will cause the climate-control system to behave strangely. I would first determine just where the vacuum leak is before going further. How quickly and responsive are the door locks? This is usually where vacuum leaks begin.
>
> There is a diaphragm in the servo that can fail, causing many, if not all, of the problems you are describing with your system, especially temperature wierdness. This diaphragm is relatively easy to check and replace, much easier than replacing or bypassing the whole system, or tearing into the dash to search for a (probably) corectly functioning vacuum element. The procedure has been chronicled here in the past by (formerly vwNate, now) omNate and others. Do a search in the archives for "servo repair" or "servo diaphragm".
>
> Mark in Lakewood, CO
>
> ----- Original Message -----
> From: n61cm <jim@...>
> To: diesel mercedes <diesel_mercedes@yahoogroups.com>
> Sent: Sat, 10 Sep 2011 09:13:32 -0400 (EDT)
> Subject: [diesel_mercedes] Floor vent vacuum controller 84 300D
>
> 84 300D
> I think the vacuum controller for the flap that controls air flowing under the dash into the floorboard area over my feet has crapped out. No matter what button I push on the controller, it never opens up. I was wondering how difficult it is to swap that vacuum element out - is it like the center vent job from hell or is it easier to get to? I think that it must be leaking vac because the car is taking longer to shut off now, it "diesels" for three seconds after key is turned off. Or maybe that is another problem.
> Thanks!
> Jim
> Reply to sender |
> Reply to group |
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> Start a New TopicMessages in this topic
> (1)
> Recent Activity:Visit Your GroupMARKETPLACEA Bad Credit Score is 600 or Below. Your Score? Find out at freecreditscore.com.Stay on top of your group activity without leaving the page you're on - Get the Yahoo! Toolbar now.Switch to: Text-Only, Daily Digest • Unsubscribe • Terms of Use.
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[diesel_mercedes] I Never Remember Winning a War

 

I was born in 1950. My dad was in bad shit in WWII. He never talked about it, but he damn sure knew what America winning was all about. It was in his security about what the world should look like that amazed me. He believed that the world was ours and it had been took, by him and his buddies.

Probably only 10% of this board now remembers what winning felt like.

I remember as a very small child hearing that that we did not win in Korea. I felt bad, because I knew from my dad that America always one. He won and his dad won in the Argon Forest.

So here we are, remembering today, that a hand full of nuts knocked the hell out of all of us ten years ago.

It is well that my dad was dead and did not know of that event. He would not have understood.

Chip

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[diesel_mercedes] No Painted Ladys, a shared experience.

 

Car paint last forever. We've all been through that missed local junk yard were there are cars that are 70 year old, paint still drawing you to the possibilities of rubbing compound and Simonize wax.

We have all also been in a parking lot, antique car show or show room with a car that looks to damn good to have it's original paint.

It is then, at that moment, that our eyes begin to scan the paint and body work. We are searching for that one defect that we all know will be there, Bondo not quite right, a run where no one will notice, a slight ripple down the side that reassures us that the bitch has been wrecked.

So, why would we paint our stuff? Certainly not to put it under the microscope described above. It's an automatic that an original paint job comes shining through. No questions ask, you look at it and you are reassured that it is still perfect, 35 years later.

No, it does not look the same as it did in 1982, but it looks perfect. You know that, and I know that. And it takes no close up inspection to cause us to know it.

Chip
Houston

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[diesel_mercedes] Tote a Load

 

One of the lesser know axioms of life is that you do not let your MB diesel run out of fuel.

Toward that end, I have started thinking about toting some diesel fuel in the trunk of my car. The problem, of course, is that diesel is a traveler and is not happy staying in one place, be it a can, jug, bottle, or milk container.

I get this fear that comes upon me as my fuel gauge goes below a quarter of a tank. Locked in state, I begin darting my head from left to right as I precariously travel down life's highway. Almost never does my reassurance come as a "diesel here" sign.

It's just not worth it to live out life this way. Surely there is a magical parachute that one can wrap a tiny part of life in security. Please help at least this phobia!

Chip
Houston

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Re: [diesel_mercedes] Floor vent vacuum controller 84 300D

 

Jim, I have no direct experience with the later Klima system (Klima II), but it's an in-house, Mercedes-built replacement of the original Chrysler-designed system.  In general, vacuum leaks are rare within the system itself, but external leaks will cause the climate-control system to behave strangely.  I would first determine just where the vacuum leak is before going further.  How quickly and responsive are the door locks?  This is usually where vacuum leaks begin.

There is a diaphragm in the servo that can fail, causing many, if not all, of the problems you are describing with your system, especially temperature wierdness.  This diaphragm is relatively easy to check and replace, much easier than replacing or bypassing the whole system, or tearing into the dash to search for a (probably) corectly functioning vacuum element.  The procedure has been chronicled here in the past by (formerly vwNate, now) omNate and others.  Do a search in the archives for "servo repair" or "servo diaphragm".

Mark in Lakewood, CO

----- Original Message -----
From: n61cm <jim@tazwade.com>
To: diesel mercedes <diesel_mercedes@yahoogroups.com>
Sent: Sat, 10 Sep 2011 09:13:32 -0400 (EDT)
Subject: [diesel_mercedes] Floor vent vacuum controller 84 300D

84 300D
I think the vacuum controller for the flap that controls air flowing under the dash into the floorboard area over my feet has crapped out.  No matter what button I push on the controller, it never opens up.  I was wondering how difficult it is to swap that vacuum element out - is it like the center vent job from hell or is it easier to get to?  I think that it must be leaking vac because the car is taking longer to shut off now, it "diesels" for three seconds after key is turned off.  Or maybe that is another problem.  

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