Hi all. Now, I'm the first to admit to not being all that clued up with landrover's disiesel engines, I try to avoid them like the plague wherever possible, other than servicing and cambelts. However, a good customer has a disco
300tdi with the following symptoms that he really wants me to fix:-
- a bit slow to start from cold
- extremely rough and lumpy at idle, almost like it's running on 3!
- at idle, a dull "thud thud thud" sort of noise, sounds like it's coming from no.1 cylinder.
- won't rev above 1500rpm, with engine trying to jump off it's mounts in the process!!
So far, I've confirmed cranking compression pressures are ok (well, all 4 are the same at least, which kind of rules out head gasket issues), there is no air in the fuel system and priming the system using the priming lever makes no difference either. Tried draining down the filter bowls, no water present either.
My thoughts are that the extremely rough and lumpy running is caused by one or more injectors being damaged/contaminated by swarf, the swarf coming from a knackered pump, this being the reason for no rise in rpm above 1500.
Your collective thoughts are welcomed please. Badger.