Fuel pump, lift pump, primer pump, Does a 96 300d have any one of these? and if so what and where? could my power problems be related?
Thanks

The Lift Pump/Fuel Supply pump is bolted to the side of the Fuel Injection pump. In the first pic it is right above #5; the 2nd pic is the Fuel Supply Pump by itself and the parts #250. (There is no Hand Primer on your car.)
http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=210020&M=606%2E912&GA=722%2E438722%2E600&GM=717%2E446&CT=M&cat=19T&SID=07&SGR=045&SGN=01

On Diesel Engines in general the first suspect when there is a loss of power are plugged or restricted filter/s or if the Fuel Tank Screen is plugged up.


However, it would be helpful if you gave a more complete description of your loss of power and when you are having the loss of power.

Example: Is your power loss when you first step on the pedal or is the loss of power at higher speeds like 60 mph? Also while you are having this loss of power is there any smoke or rough running of the Engine?
Do you have any Fuel Leaks?

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84 300D, 82 Volvo 244Gl Diesel

No fuel leaks, loss of power when off line with engine warm, once it gets going its fine. All filters are new new o rings as well. i have another post titled 96 e300 loss of power, no smoke or rough running. Thanks

Not plugged or restricted filters; with that the power loss would start at higher rpms first.
I hope someone else will chime in as I do not have a clue.

I looked at the other thread. If you had good power until the Engines warms up there must be some sort of sensor some where that is causing it.
Wild guesses:
Sort of like on a gas Car where the computer gives you more Fuel for starting and when the Engine warms up or after a period of time the Fuel is cut back. So if you drive the car with the Engine cold you have a lot off power due to the extra fuel.
But, in your case when the Engine gets warm the Fuel may be getting cut back too much.
Also on an Older gas Car during starting and when the Engine is cold the car is not on the Computer yet so the Computer does not effect the fuel till later.

Also I read in another thread, another model had some sort of "limp home mode" that the computer would put it into that also had an effect on when the transmission shifted.

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84 300D, 82 Volvo 244Gl Diesel

'Off the line' slow-performance Could be the Transmission or specifically the Torque-Converter....(IF its Auto-trans that is,....)

Stall-test needed to confirm...

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http://i190.photobucket.com/albums/z...0TDnoplate.jpg

Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....

it is auto 4 speed, never heard of stall test on auto how do you do ?
tourque converter is a possibility when i chsnged fluid 10 k ago no emetal when i drain converter, this problem has been ongoing. thanks for help

'Stall-Speed' test....

Accurate tach attached to engine. (Car one not accurate enough....) Car stationary, brakes applied, engine in good state of tune, and fully hot.

Apply full throttle for no more than 5 seconds to avoid overheating trans. fluid. Take engine revs reading.

Compare to data specific to your trans and vehicle....Trans. WSM for your car to find this value I guess

IF the stall speed is low, this can mean engine out of tune, (Less likely on a diesel than a gasser engine) or the Torque-Converter internal stator one-way sprag-clutch is slipping, and the TC is then not giving the full torque 'Magnification' effect, and you have a very sluggish pull off from standing start, and maybe not climbing a steep hill at all from standstill if its totally shot....

When the vehicle is moving over say, 30mph Stator 'free-wheels' on the sprag and plays no part in torque magnification. In this phase of operation its operating in fluid-flywheel mode. Stator in converter only operates when the car is stationary or moving slowly...

So, IF the car accelerates well over say, 30mph, comparable to a car of the same model, then this could well be the cause. Engine tune will affect acceleration over the whole speed-range, Torque-Converter only when pulling away and at low speeds...

Check out this wiki on torque-converter operation....
http://en.wikipedia.org/wiki/Torque_converter

__________________
http://i190.photobucket.com/albums/z...0TDnoplate.jpg

Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....