Massey 7618 adblue problem

[Stoosh]

Massey 7618 2013. Tractor is using adblue at around double the rate of usual. It has quite an easy life, sprayer etc but noticed the change when it was working harder. Anyone experienced this? Is there a cheap/easy fix before looking at a delete? Thanks.

 

[Spud]

Massey 7618 2013. Tractor is using adblue at around double the rate of usual. It has quite an easy life, sprayer etc but noticed the change when it was working harder. Anyone experienced this? Is there a cheap/easy fix before looking at a delete? Thanks.

Sounds like it needs some work. My 7618 add blue will just about last 3 tanks of fuel.
7620 threw an add blue wobbler, cheapest fix was a delete

 

[jh.]

Has it had the dealer to it recently and maybe had an engine software update ? , my 7720s has gone from 3 tanks of red to 1 tank adblue , to matching each other tank for tank since an update . No codes , no running problems and they can't put old software back on

 

[Stoosh]

No. It has not had a software update.

 

[bt12]

Could be injector leaking or injecting too much, do a flow rate test, probably cheaper to delete adblue

 

[Stoosh]

Could be injector leaking or injecting too much, do a flow rate test, probably cheaper to delete adblue

How is this done?

 

[Drillman]

Our NH sips adblue right up until the 4m combi goes on it, then it’s like Oliver reed in a brewery cant get 2 fills of diesel to one fill of adblue when drilling

 

[Timbo]

Our NH sips adblue right up until the 4m combi goes on it, then it’s like Oliver reed in a brewery cant get 2 fills of diesel to one fill of adblue when drilling

No surprise really- the Iveco / Cummins motors are tuned akin to a tier 2, plenty of fuelling, fairly high static compression for a modern engine, ideal timing, and plenty of heat in the combustion chamber- for a good burn and good performance -, and no external EGR to drop combustion temps compromising efficiency.

Upshot of that is plenty of NOx when working hard so needs more adblu than some.

The DPF sorts out the small amount soot, and since the exhaust is pretty hot for an emissions engine, they don't need to do static regens, as its all done passively

 

[Stoosh]

Any recommendations for an adblue delete boy, east central Scotland?