[cd300]

so, i got new glow plugs installed and both fuel filters changed with disel purge; including oil/filter change. After i noticed white smoke at idle and during acceleration. It is 1980 300d.
I think the white smoke is due to air in the fuel lines. So, i opened few injectors lines and cranked the engine; it start and i noticed bunch of air bubbles. Now, there is a specific method to bleed the injectors because air bubbles keep coming and i don't noticed any other leak in the fuel lines.
Any advice.
(i also the hand pump i have is the old style with black top and i noticed this was does not screw in; is this way it suppose to be)

 

[300Dman]

so, i got new glow plugs installed and both fuel filters changed with disel purge; including oil/filter change. After i noticed white smoke at idle and during acceleration. It is 1980 300d.
I think the white smoke is due to air in the fuel lines. So, i opened few injectors lines and cranked the engine; it start and i noticed bunch of air bubbles. Now, there is a specific method to bleed the injectors because air bubbles keep coming and i don't noticed any other leak in the fuel lines.
Any advice.
(i also the hand pump i have is the old style with black top and i noticed this was does not screw in; is this way it suppose to be)

The old Style Hand Primer has a shiny aluminum body and most often has a hard white Plastic knob. But, I have see them with hard Plastic black Knobes. And when the are older the leak when you are pumping with them.

The NewStyle Hand Primer has a softer Rubber coated Knob and and you only have to push it down and a spring brings it back up.

Change the 2 sections of Fuel Inlet Hose with 5/16" inside diameter Fuel Hose you can get at any Auto Parts Chain Store; it is rated for Diesel Fuel.

While you are doing that check the Plastic Fuel Filter for Cracks.

I had a Air Leak at the Fuel inlet Hoses because the Hoses were too hard and inelastic to seal on the Plastic Filter.

 

[cd300]

The old Style Hand Primer has a shiny aluminum body and most often has a hard white Plastic knob. But, I have see them with hard Plastic black Knobes. And when the are older the leak when you are pumping with them.

The NewStyle Hand Primer has a softer Rubber coated Knob and and you only have to push it down and a spring brings it back up.

Change the 2 sections of Fuel Inlet Hose with 5/16" inside diameter Fuel Hose you can get at any Auto Parts Chain Store; it is rated for Diesel Fuel.

While you are doing that check the Plastic Fuel Filter for Cracks.

I had a Air Leak at the Fuel inlet Hoses because the Hoses were too hard and inelastic to seal on the Plastic Filter.

ok, maybe i was confused on the fuel pump, but it has a hard plastic knob and to pump and have to push down but cannot be tighten.
I did replace both of the fuel hoses, including both fuel filters and does not have cracks. I did try to bleed the injectors again but still keep getting bunch of bubbles. I looking below the fuel tank and there is no leak....
And the white smoke does smell like fuel and not like coolant...I am letting it idle for a while now and it is not over heating...

 

[cd300]

So, i loosen the fuel hoses at the plastic filter and tighten them again and cracked open few injectors again and left them for few minutes and tighten them up again. And took the car for a spin...went around 50mph and i was not able to see any smoke from rear view mirror. And now at idle ...it is definitely allot less smoke...