1999 E300D W210
Hi everyone - after searching I couldn't find an answer... My local dealership told me there is a fuel handpump (like my 1980 300TD has) located somewhere under the intake manifold.. I'm trying to prime all my newly replaced plastic fuel lines (around the fuel filters), and I can't find the pump... Cranking it forever doesn't seem to do the trick either...

My original problem was an air leak somewhere in the old fuel lines, so I replaced them all in hopes of either finding or fixing the leak.

Thanks

Daniel

I believe there is no hand pump on that engine.

So then my questions is, how do you properly prime the fuel lines?

No hand pump. When I did this repair on mine, I just had to crank the snot out of it. It will catch after a few minutes of (not continuous!!) cranking as the injection pump is self bleeding. You may be able to attach a hand vacuum pump (as in a brake bleeder) to one of the fuel lines and save some stress on the starter.

Good Luck!

Klaus

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‘84 300TD “Mountain Goat”
'62 300d Adenauer-350 Chevy - "Max"
'15 VW Passat TDI
'16 Dodge Ram 3500 - Cummins w/6-speed
'68 Mustang fastback
'55 T-bird
‘63 Studebaker Hawk

I got fed up with cranking after a while, so I just sucked the hell out of the pre-filter input (and got a facefull of WVO... mm..) so something is still broken somewhere...Damn. Went to sleep, woke up an hour later and realized I had the return line and preheat lines backwards the whole time. Great. Switched them around and it runs like a champ.

thanks everyone

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1987 300TD, 200,000 miles - Nice upgrade from my old
Blue '80 300TD, which is still runnin like a champ on WVO - 450,000 miles.

Hmmm...... That WVO is hard on the arteries but is apparently good brain food !

Glad to hear it's running again!

Klaus

__________________
‘84 300TD “Mountain Goat”
'62 300d Adenauer-350 Chevy - "Max"
'15 VW Passat TDI
'16 Dodge Ram 3500 - Cummins w/6-speed
'68 Mustang fastback
'55 T-bird
‘63 Studebaker Hawk

Hey now, same rules apply to diesel engines as the human body, only the saturated fats are bad

..Or else we'd be running on animal grease

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1987 300TD, 200,000 miles - Nice upgrade from my old
Blue '80 300TD, which is still runnin like a champ on WVO - 450,000 miles.

Theres no pump. You just have to keep cranking the engine.

It takes a long time. Make sure you have a battery charger.

There ya go. WVO is too thick to thick to start with. Get diesel in there and that should solve your priming problem.