question about leak off pipes / leak off system
Discussion
i have an iveco daily 2.8 c11 on a 52 plate (bosch common rail)
the red injector light started to flash and the van would cut out, according to a friend who used to run a fleet of theese as a tarmacing firm (motorways not carvan sites i'll Add) said it'd be the pump on the ns of the chasis i swapped this with a good one and it was no better.
i was advised to remove the leakoff pipes and run the van and see if an injector was leaking excessivly . non were leaking.
whilst the van was running there was fuel coming out of the leak off pipes which werent connected to the injectors, now i thought this was a one way thing the excess fuel comes out of the injector and back to the pump/filter depending on the vehicle.
i reassembled everything and run it no injector light and no cutting out very strange i know.
so why was there fuel pouring out of the disconected leak off pipes?
the red injector light started to flash and the van would cut out, according to a friend who used to run a fleet of theese as a tarmacing firm (motorways not carvan sites i'll Add) said it'd be the pump on the ns of the chasis i swapped this with a good one and it was no better.
i was advised to remove the leakoff pipes and run the van and see if an injector was leaking excessivly . non were leaking.
whilst the van was running there was fuel coming out of the leak off pipes which werent connected to the injectors, now i thought this was a one way thing the excess fuel comes out of the injector and back to the pump/filter depending on the vehicle.
i reassembled everything and run it no injector light and no cutting out very strange i know.
so why was there fuel pouring out of the disconected leak off pipes?
johny105 said:
i have an iveco daily 2.8 c11 on a 52 plate (bosch common rail)
the red injector light started to flash and the van would cut out, according to a friend who used to run a fleet of theese as a tarmacing firm (motorways not carvan sites i'll Add) said it'd be the pump on the ns of the chasis i swapped this with a good one and it was no better.
i was advised to remove the leakoff pipes and run the van and see if an injector was leaking excessivly . non were leaking.
whilst the van was running there was fuel coming out of the leak off pipes which werent connected to the injectors, now i thought this was a one way thing the excess fuel comes out of the injector and back to the pump/filter depending on the vehicle.
i reassembled everything and run it no injector light and no cutting out very strange i know.
so why was there fuel pouring out of the disconected leak off pipes?
I would think there is a blead off /return from the common rail pump the conects to the same pipework.....the red injector light started to flash and the van would cut out, according to a friend who used to run a fleet of theese as a tarmacing firm (motorways not carvan sites i'll Add) said it'd be the pump on the ns of the chasis i swapped this with a good one and it was no better.
i was advised to remove the leakoff pipes and run the van and see if an injector was leaking excessivly . non were leaking.
whilst the van was running there was fuel coming out of the leak off pipes which werent connected to the injectors, now i thought this was a one way thing the excess fuel comes out of the injector and back to the pump/filter depending on the vehicle.
i reassembled everything and run it no injector light and no cutting out very strange i know.
so why was there fuel pouring out of the disconected leak off pipes?
johny105 said:
So there must be a blockage if it's coming back up to the injectors then????
Johny
Unlikely but posible a pipe is crushed or kinked or there is a problem or blockage in the tank venting , I think it would be normal for some fuel to be comming out, if its running ok I woundent worry....Johny
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