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Tannaton · Feb 24th, 2018, 08:45

I personally would re-use them without a second thought (and have done on many occasions). If they were to leak, although the system pressure can be considerable, the diesel would have to travel from the joint and then through the threads or top of the nuts by that point it usually trickles out. With a major unrestricted leak e.g. broken pipe the pressure in the system would collapse.

But as said there is some risk so take some care when inspecting the system afterwards with the engine running. Another common myth is that the system needs to be de-pressurised etc.

My other point would be that people would be more likely to follow Volvo’s safety guidance if the cost of the replacement pipe was reasonable..... I’ve never bought the pipes but the OP implies they are circa £200 which is not reasonable.

Feb 24th, 2018, 08:45	#7
Tannaton Bungling Amateur Last Online: Today 13:08 Join Date: Aug 2014 Location: Beverley, East Yorks	I personally would re-use them without a second thought (and have done on many occasions). If they were to leak, although the system pressure can be considerable, the diesel would have to travel from the joint and then through the threads or top of the nuts by that point it usually trickles out. With a major unrestricted leak e.g. broken pipe the pressure in the system would collapse. But as said there is some risk so take some care when inspecting the system afterwards with the engine running. Another common myth is that the system needs to be de-pressurised etc. My other point would be that people would be more likely to follow Volvo’s safety guidance if the cost of the replacement pipe was reasonable..... I’ve never bought the pipes but the OP implies they are circa £200 which is not reasonable. __________________ 2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 Last edited by Tannaton; Feb 24th, 2018 at 08:53.