W123

1982 300d turbo runs rough when cold

bought a rough running 1982 300d turbo. Previous owner thought it was the injectors and replaced them with junkyard injectors and didn't use washers! I adjusted the valves as per Kent's instructions with his wrenches. I did a compression test - good compression in all cylinders. Installed MS rebuilt injectors and torqued to specs. Installed dampner bolt. Glow plugs work fine. Engine starts eaisly but runs very rough untill it warms up, then it runs great! I don't see any leaks of fuel. I am really stuck. I have an identical 300d that has run fine for the past 4 years!

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

1983 300d white smoke, no power

need help. i have a 1983 300d 150k on the clock. hard start when cold, heavy white smoke through out operating temperture, no power. compression at 330psi all cylinders.check diesel fuel, ok. replaced all fuel filters and in tank screen. replaced all glow plugs,relay. replaced all injector nozzles. replaced all fuel hoses and plastic lines. problem still exist.performed timing chain stretch. Found 6 degrees after tdc. any ideas?

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

1985 300D - rhythmic thumping sound near transmission ??

There is a rhythmic thumping/knocking sound coming, I believe, from the area of the transmission. It is really audible inside the car, less so when outside or under the car. In the car it is difficult to pinpoint as it seems to move around depending on where my head is at, however I'm pretty sure it is strongest around the transmission hump in the car.

Here are a few other details:

* The noise seems worst/loudest in the morning.

* Doesn't seem to affect driving of the car.

Chassis Model Number

W123

Forums

Transmission / Suspension Specific Aid

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