ProcrastinatorFraser
Active Member
Which engine?
2.5 N/A diesel
Which engine?
2.5 N/A , so no turbo
wtf compression ignition, only possible reason would be erratic fuel pressure affecting base idle or governor
Erratic fuel pressure is what you get as fuel runs out and some air gets into the system and the governor try's to compensate the rev's rising and falling but it won't lead to a runaway.
12j's can have an issue of running on engine oil mist if the crankcase is pressurised. Usually caused by either compression lost past piston rings/valves or head gasket, sometimes over full engine oil/diesel leak into oil.
wtf compression ignition, only possible reason would be erratic fuel pressure affecting base idle or governor
Running out of diesel used to be my specialist hobby and not once ever did the revs increase.
This was on TDI and TD5
The reason I ran out so often? fuel was free and i was damned if I was going to pay for any if I didnt have to
Not sure whats happened to the quote bit there, was meant for blue beasty?
for defenders it's usually failed turbo seals. oil gets blown past the turbo seal and into the intake
air in the fuel lines.. he is procrastinating a bit too much.. it's made him loopy.
Sorry to hijack the thread but I'm currently having a similar issue with my 12J 2.5 NA deisel.
Revs increase on its own, holds for a few (5-10)minutes and then back to normal for a while, then repeats. Eventually stalling sometimes after an hour, sometimes after 20 mins. Really difficult to start but eventually it does and then back to step 1. Only this time it won't restart so I've given up. (Now looking for a mobile mechanic between Notts and Derby.)
I thought perhaps air at first, so bled the system- no joy.
Does anyone think perhaps it may be the injector pump seals as quoted above?
No!
Either your engine is knackered and beginning to run on oil, probably due to rubber pipe to inlet manifold ^^^^^^^^^^^^^.
Or a remote possibility your injector pump is giving up the ghost!
Ahh. I have noticed white mist if I take off the oil filler cap.
Any ideas how I can test either diagnosis? Assuming of course I can get the flipping thing started again. ( turning over only now )
Thanks
There's no loss of water and no milky residue in filler cap. Also power isn't a problem( well at least last night when it was running, I got 50mph until the it died. Towed it home. Rebled the fuel and it ran fine. Doesn't sound like the head does it?
Think I'm looking at a new pump. [emoji22]££££'s