bad injector ?

[80300dbenz]

how would i know if i hav a bad injector or if the pump is bad on my 1980 300d thats been sitting for a few years. what could be the problem why it is not starting. i changed the filters and drained out all the old fuel.

[Brian Carlton]

A bad injector won't prevent it from starting.

First thing to check is to see if you have working glow plugs.

Second thing is to make sure you have primed the fuel system with the hand pump........many, many times.

Third is to crank the engine with the fuel lines cracked at the injectors to ensure that you are getting fuel from the IP.

The chance of the IP going bad is very unlikely.

[80300dbenz]

i will be sure to look into it. another thing, if i prime it alot of times does ne things get over flowed ?

[dkveuro]

Originally Posted by 80300dbenz

i will be sure to look into it. another thing, if i prime it alot of times does ne things get over flowed ?

No...the fuel returns to the tank, your just getting all the air out. ( Apart from what leaks out of the primer pump, that is !)


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[80300dbenz]

is there any way to flush out the fuel tank to take all the small pieces of grim? And when putting in new filter what are some pointers one needs to know to ensure better quality?

[Diesel Giant]

Take the tank off and pressure wash it. No way to do that with it in the car.

[Stevo]

Originally Posted by 80300dbenz

is there any way to flush out the fuel tank to take all the small pieces of grim? And when putting in new filter what are some pointers one needs to know to ensure better quality?

There is a screen "strainer" in the tank right above where the supply line leaves the tank on the passenger side. Takes a large socket, cant remember just what size,

When changing the secondery (big one) fuel filter, fill it with CLEAN fuel (or Molly lube) before installing, saves lots of primer pumping.