High pressure diesel fuel lines

[Arash79]

No worries

Thanks barry

[robsterpaterson]

Originally Posted by Tannaton

I think there is a torque listed for them but it's tricky to do that with a spanner.....

They don't want to be too tight either, I would try to replicate how tight they were when you undid them. You do not want to be stripping threads on your injectors...

I wouldn't advise that, the torque required to loosen them will be MUCH higher than the tightening torque. You could always modify a spanner and use it at 90 degrees with a torque wrench if there's access to do that. Otherwise you're into Volvo tools or scary formulae to work out the torque you're applying.

[Zebster]

Originally Posted by robsterpaterson

I wouldn't advise that, the torque required to loosen them will be MUCH higher than the tightening torque. You could always modify a spanner and use it at 90 degrees with a torque wrench if there's access to do that. Otherwise you're into Volvo tools or scary formulae to work out the torque you're applying.

Or use a spring balance on a measured point on the spanner to give a known weight equivalence at a know distance...

[TruckbusUK]

or try a crowsfoot spanner on your torque wrench.

[laundryman]

I have a full set of brand new fuel lines if you do want them.

[Tannaton]

Originally Posted by robsterpaterson

I wouldn't advise that, the torque required to loosen them will be MUCH higher than the tightening torque. You could always modify a spanner and use it at 90 degrees with a torque wrench if there's access to do that. Otherwise you're into Volvo tools or scary formulae to work out the torque you're applying.

..............why?

[JADXC]

Hi,
i reused the old lines, torque? hand tight, not too hard, no leaks so far.

Best regards.

[Arash79]

Guys,

I tightened the fuel lines today and as everybody said there were no issues. I checked for leaks and couldn't spot any. I will continue to monitor.

Thanks for your help

[tonygreen1966]

Apart from leaks another reason Ford used to recommend you don't reuse the pipes was that on the second assembly any swarf from the first assembly/dis-assembly could potentially get in the line and damage the injector. I've always just made sure there is no swarf/burrs present by gently using my finger tips and a blast of air, then put them back on. Never had a problem. But I reckon that the pipes only get damaged/swarfed/burred if they are over tightened.

[barrybritcher]

same here tony, quick blast of air and check for swarf good call