On our farm we have a new to us (bought out of OH in april) Case IH mx135. It has the 5.9ctd with a inline bosch 908 pump. stock hp rating is 125, had it turned up 135hp before delivered to us(dont know how or what they did). ran it all summer in the bunk, hauling wagons, and doing odd jobs...no issues what so ever, solid power. The grid heaters on it are run off a manual switch that you hold down for prefered time (usually 20-30sec)...this works ok.
this last "cold snap" (5-10f) it started acting up and didnt want to start worth a damn and wont stay running now. fuel is treated and have no other issues with other tractors, etc. fuel filter was changed just in case, no change. cracked injector lines and barely got any fuel so decided lift pump on block was bad (hand primer button didnt do anything either), just replaced that today. primed it, started it and ran for 20 minutes this afternoon at 1500rpm. shut it down and started it back up couple minutes later with no problem.
went back to start it just now tonight-held grid heaters down for 2 cycles of 20 seconds, started it up, let the rpms settle out then moved it 15 yards and went to put it in reverse and started sputtering like it was lacking fuel. tried to give it some throttle to clear it up and have zero throttle. in order to get it to start we have to prime it a good 50 pumps or so and it will only run at 650rpm for 10-15sec the sputter out and stall. will not respond to throttle. did this about 10x's just to get it out of the driveway and sitting there now.....what gives?
whats next?:confused013:
this last "cold snap" (5-10f) it started acting up and didnt want to start worth a damn and wont stay running now. fuel is treated and have no other issues with other tractors, etc. fuel filter was changed just in case, no change. cracked injector lines and barely got any fuel so decided lift pump on block was bad (hand primer button didnt do anything either), just replaced that today. primed it, started it and ran for 20 minutes this afternoon at 1500rpm. shut it down and started it back up couple minutes later with no problem.
went back to start it just now tonight-held grid heaters down for 2 cycles of 20 seconds, started it up, let the rpms settle out then moved it 15 yards and went to put it in reverse and started sputtering like it was lacking fuel. tried to give it some throttle to clear it up and have zero throttle. in order to get it to start we have to prime it a good 50 pumps or so and it will only run at 650rpm for 10-15sec the sputter out and stall. will not respond to throttle. did this about 10x's just to get it out of the driveway and sitting there now.....what gives?
whats next?:confused013: