Injector fuel system bleeding?

[paddyred]

Originally Posted by cheshired5

I've heard it can be but I've done this on a few Peugeots and it's always been straightforward.

The method I've described is Volvo's own by the way not mine but I like it because it's low tech.
The only "tool" Volvo use is a dedicated pipe attachment to catch the fuel with no spills.

That's weird! I thought they had a priming bulb that had the connectors to connect the primer into the return line and bleed the system through like that.

[cheshired5]

You'd think they'd have something wouldn't you but no. Vida basically says, pull this and away you go.
Pic is the 1.6 but 2.0 has the identical procedure.

[paddyred]

I was trying to install VIDA earlier but I haven't got a copy of windows 7 pro so I gave up for now. That's a guide for a D5 isn't it? That's not a 2.0D. Or is it the same?

[cheshired5]

I think all D5s have an in tank pump so are self priming.

The pic is 1.6

[Bungo]

Which 2.0D are you guys talking about here ?
Volvo sell a specific tool for the non self bleeding ones, or use the bulb type, I'm not aware these can be bled in the way you describe with a jam jar.

[Bloders2]

Originally Posted by Bungo

Which 2.0D are you guys talking about here ?
Volvo sell a specific tool for the non self bleeding ones, or use the bulb type, I'm not aware these can be bled in the way you describe with a jam jar.

for removing an injector pipe, its not an issue, so lets not get confused.

HOWEVER, for vehicles without an in-tank pump, i dont see how simply removing the reutn line will bleed them through, after say a filter change.
I do what the OP does and pull diesel through with a pump - I use either a priming bulb, or a mityvac.

Of course, I may be wrong

[Tannaton]

Originally Posted by Bloders2

for removing an injector pipe, its not an issue, so lets not get confused.

HOWEVER, for vehicles without an in-tank pump, i dont see how simply removing the reutn line will bleed them through, after say a filter change.
I do what the OP does and pull diesel through with a pump - I use either a priming bulb, or a mityvac.

Of course, I may be wrong

I recently replaced the engine in my V50 2.0D - I've worked on lots of Volvos before but it was my first really serious job on this engine. My experience was that it wasn't easy to bleed, I would summarise as follows:

- there is no in tank or low pressure fuel pump, the HP pump supplies high pressure fuel at the rail and draws from the tank.

- the HP Pump doesn't appear to self prime - I.e. It will not draw fuel from the tank via a dry fuel line.

- As soon as you disturb the fuel system prior to the HP pump, the fuel goes dribbling back to the tank so you start again almost.

- Some Citroens and Peugeots that use this engine have priming bulbs fitted at the factory.

I used a vacuum pump on the return line to bleed mine via a capture bottle. I bought a priming bulb but it was a cheap part that didn't work. You don't need to bleed the system if you have worked on the fuel system after the HP pump, so changing injectors and pipes is fine.

Tip - I read one of Clans old posts on this - it's much easier to bleed the fuel system if you have a nearly full tank of fuel and/or raise the rear of the car 18 inches or so.

[cheshired5]

Originally Posted by Bungo

Which 2.0D are you guys talking about here ?
Volvo sell a specific tool for the non self bleeding ones, or use the bulb type, I'm not aware these can be bled in the way you describe with a jam jar.

Originally Posted by Bloders2

for removing an injector pipe, its not an issue, so lets not get confused.

HOWEVER, for vehicles without an in-tank pump, i dont see how simply removing the reutn line will bleed them through, after say a filter change.
I do what the OP does and pull diesel through with a pump - I use either a priming bulb, or a mityvac.

Of course, I may be wrong

You're pulling the return and then cranking the engine until fuel streams out.
I prefer vacuum priming too but it's not the only way.

[kgthomas]

With the 1.6D2 I tend to after a fuel filter change I fill the filter with diesel and start the car. Then accelerate and this usually pulls the diesel through within the engine stalling.

[Bungo]

Surely if you interfere with any of the HP fuel system it will need bleeding on a non self primer as you have introduced air into the system .
Seems to me the advice should be aimed at what engine the OP has.
Jam jar technique would not work on mine.

Oh and hand priming bulbs need muscles like Popeye