About a month ago, I started having issues with the fuel supply on my TT75A tractor. At speeds over 2000 rpm, the tractor acted as if it was starving for fuel and would blow white smoke and a strong diesel odor that would irritate my eyes. I first changed fuel filter and air filter, no luck. I then found some particles which look like rust flakes in the strainer of the transfer pump. (I had purchased an old storage tank in Feb, but thought I had it cleaned out pretty well). After blowing out the strainer, the tractor ran okay for a couple of days and then started doing the same thing again. I drained the fuel tank, blew out all the lines and banjo fittings up to the injector pump, and blew out the return line from the injector pump to the tank. I have replaced the hose clamp on the fuel line on the suction side of the transfer pump and bled the injectors.
One thing I notice is when the tractor runs okay, it will idle aroun d 600 rpm but when it is acting up, the idle speed drops below 500 rpm and the engine will die within 30 seconds or so.
One thing I notice is when the tractor runs okay, it will idle aroun d 600 rpm but when it is acting up, the idle speed drops below 500 rpm and the engine will die within 30 seconds or so.