Join Date: Mar 2008
My Motorhome: A Caravan of all things !!
Thanked 525 Times in 447 Posts
Excess unburnt fuel usually causes black smoke, white smoke is usually engine oil (which is why blown turboís produce clouds of white smoke, the oil seal goes and the lubricating oil meets the hot exhaust gases inside the turbo)
To me it sounds as though there could be one of a few things. First suspect would be a hole in a piston OR knackered oil control piston rings on one of the cylinders. A broken piston ring would allow the cylinder to ďsuck inĒ some oil mist out of the sump on the induction stroke and then burn it on the power stroke thus producing white smoke
Having said that the loss of power tends to suggest one cylinder isnít providing its share of power and THAT points to a possible holed piston (but compression checks out OK)
Final thought, is your engine fitted with an EGR (Exhaust gas recirculating) valve? They can give all sorts of nightmare problems if jammed open. Some can be cleaned, others have to be replaced.
A decent diesel mechanic should be able to identify the fault easily enough.
Its not the destination that matters.
It's who you share the journey with (even if like me, itís in a caravan!)
I am very fortunate to have Mrs Plodd to share mine with
Last edited by Mrplodd; 26-07-2020 at 15:22.