Fordson Dexta oil in exhaust manifold
Posted: Mon Jun 17, 2013 10:48 pm
A couple of months ago I purchased a 1961 Fordson Dexta (957E 76896) and the problem is that it spits oil or could be excess diesel from the exhaust/exhaust manifold. This tractor has been resprayed but now looks a real mess, If you drive the tractor you get oil spots all over your face and clothes. Now this engine had been done up just before I bought it, basically restored by an enthusiast. The list of things done to the engine include head Valves Re Ground, new Liners/Piston Rings, Crankshaft Re ground, Injectors Re Furbished and new Water Pump. The valve guides were not replaced as the person doing the head valves said that these were ok. Previous owner sold as soon as he finished doing up the tractor,
I have read a few reports on this forum suggesting that this problem could be due to lack of work but I'm finding it difficult to buy into this idea. The tractor starts and drives well and does not smoke (only a little bit as you would expect on revving). Does anyone have any idea what could be causing this oily discharge from the exhaust and can anyone suggest a methodical approach to identify the problem and fix. Could it be that the wrong type of rings were fitted or could they have not been fitted properly in the first place? Could it be the valve guides? It's not a problem for me to have to replace anything but I don't want to be barking up the wrong tree. The other thing is that every now and again you hear a slightly different engine note, lasts about a second and is accompanied by a puff of smoke, happens every 15 seconds or so, could it be that an injector is not shutting off properly and letting in too much fuel?
I'm not in a position of being able to 'work' the tractor and will only use it now and again on my smallholding for short periods of time. Does anyone know of any experts in my part of the world, Abergele, North Wales?
Many thanks in advance.
I have read a few reports on this forum suggesting that this problem could be due to lack of work but I'm finding it difficult to buy into this idea. The tractor starts and drives well and does not smoke (only a little bit as you would expect on revving). Does anyone have any idea what could be causing this oily discharge from the exhaust and can anyone suggest a methodical approach to identify the problem and fix. Could it be that the wrong type of rings were fitted or could they have not been fitted properly in the first place? Could it be the valve guides? It's not a problem for me to have to replace anything but I don't want to be barking up the wrong tree. The other thing is that every now and again you hear a slightly different engine note, lasts about a second and is accompanied by a puff of smoke, happens every 15 seconds or so, could it be that an injector is not shutting off properly and letting in too much fuel?
I'm not in a position of being able to 'work' the tractor and will only use it now and again on my smallholding for short periods of time. Does anyone know of any experts in my part of the world, Abergele, North Wales?
Many thanks in advance.