- Joined
- Sep 16, 2004
- Messages
- 1,145
- Location
- Leven, Fife / Northampton
- Car
- 2006 320 CDI Avantgarde . 1997 312d Sprinter
Hi,
When you get the new pipes, they will each have a white clip on the ends which just unclips and the pipe comes off. Do not lose the sealing rubber washer when you do this, When you go to the parts dept ask them nicely if they will give you a print out of the page of the the diagram where they all go and you will then not get confused.
Always when working on the diesel system be very clean, no old bits of dirty rag for mopping up while joints are disconnected.
When you have changed all the pipes, then comes the worst bit,starting it up.
The fuel pump uses a self bleed sytem for getting rid of the air, which means churning the engine over and over until the air is all bled out. Make sure your battery is capable of an extended starting proceedure.
When it is running, just check the fuel lines for any air bubbles, there should be none.
Whilst changing these is good preventative maintenance, especially for the age of your car, I would examine your fuel pipes now and check whether any air bubbles are present. If not, then I might be inclined not to disturb anything at the moment, just enjoy driving your new toy. You will soon get to know when they need changing. You are fortunate that your car has spent most of its life in a different climate so you may yet get some more mileage out of the old ones.
Just as a thought while you are changing bits, did you change the pollen filter that is under the passenger side dashboard on the blower motor. Again parts dept could give you a print out so you know where it is. Coming from a hot dusty climate it might well need a change and will improve the airflow through the heating system. Steve.
When you get the new pipes, they will each have a white clip on the ends which just unclips and the pipe comes off. Do not lose the sealing rubber washer when you do this, When you go to the parts dept ask them nicely if they will give you a print out of the page of the the diagram where they all go and you will then not get confused.
Always when working on the diesel system be very clean, no old bits of dirty rag for mopping up while joints are disconnected.
When you have changed all the pipes, then comes the worst bit,starting it up.
The fuel pump uses a self bleed sytem for getting rid of the air, which means churning the engine over and over until the air is all bled out. Make sure your battery is capable of an extended starting proceedure.
When it is running, just check the fuel lines for any air bubbles, there should be none.
Whilst changing these is good preventative maintenance, especially for the age of your car, I would examine your fuel pipes now and check whether any air bubbles are present. If not, then I might be inclined not to disturb anything at the moment, just enjoy driving your new toy. You will soon get to know when they need changing. You are fortunate that your car has spent most of its life in a different climate so you may yet get some more mileage out of the old ones.
Just as a thought while you are changing bits, did you change the pollen filter that is under the passenger side dashboard on the blower motor. Again parts dept could give you a print out so you know where it is. Coming from a hot dusty climate it might well need a change and will improve the airflow through the heating system. Steve.
guydewdney
MB Enthusiast
push the clips 'in' on the old pipes to remove. i put a boat type hand fuel pump in the fuel line to hand prime it.
- Joined
- Sep 16, 2004
- Messages
- 1,145
- Location
- Leven, Fife / Northampton
- Car
- 2006 320 CDI Avantgarde . 1997 312d Sprinter
On hindsight I wish I had had a similar device for priming the system. Poor design not having any hand priming facility even when just changing a fuel filter.
When also my delivery valves were leaking,( letting in air) I managed to burn out a starter motor trying to bleed the air out of the system. Which at the time meant laying in 6 inches of snow trying to get the starter motor out. Horrendous!.
Steve.
TBH I don't understand the "change before winter" advice. If they are working fine now I'd leave them alone.
In any event if there is a problem with them allowing air in 99 times out of a hundred it'll be the O ring that's the culprit, not the line itself.
In any event if there is a problem with them allowing air in 99 times out of a hundred it'll be the O ring that's the culprit, not the line itself.
