My 2013 MX 4700 with 1140 hours is losing power, emitting white smoke, and the engine clatters under load. I changed the fuel filter and air filter and that cured it for several hours of operation. The problem returned so I drainedthe fuel tank and blew out the fuel ines. Problem solved for a few hours but it has the same problem again. Any advice on what I should try next?
MX4700 loss of power
- Thread starter ldozier
- Start date
Your description sounds like a growth of algae in your fuel system. Probably need to be sure you have clean fuel from a busy truck stop to be sure fuel is not stale. Then add a biocide for diesel, which you can get at auto supply stores. You'll probably have to change fuel filters a couple of times to help rid the scum.
I ordered a new fuel filter. Drained the tank and poured about a quart of kerosene thru then about a gallon of fresh fuel from a busy station. I installed the new filter with new o-rings. It fired right up and sounds good at low idle but it is worse than ever at 1500 rpm. No power, smokes a greyish white, and the engine clatters. I don't quite know what to check now.. Maybe I flushed something into the injectors. In the past just cleaning the fuel filter would clear things up for a few hours.
The whitish smoke is bothersome. Pull your radiator cap when the engine is cold. Start the engine. Watch for air bubbles in the coolant. You COULD have head gasket problems.
BigG
Well-known member
Equipment
l2501, FEL, BB, Rotary cutter, rake,spreader, roller, etc. New Holland TL80 A
I know this is not mentioned very often but white smoke on my diesel truck has been a bad injector 3 different times. Poor running with no power.
The kerosene has likely damaged the pump and possibly injectors. Might not show it now, but it probably will eventually. Kerosene ain't got any lubricant properties; real similar to gasoline or water, difference being that it will actually burn in the engine (although at a different rate than diesel, gas).
Sorry to be so slow reporting back. My MX 4700 is running great. I don't know if I had some residual bad fuel in the lines or just took a while to clear all the air in the system. Over the course of a few hours I let it idle at low speeds then at higher rpms. I used it lightly. occasionally opened the air bleed valve for 30 seconds or so and it started running fine. I have about 30 hrs of fairly heavy use moving dirt and spreading gravel and it is doing great. I am sure it was bad fuel that started the problem. Thanks for all the good advice from orange talk.
Good to hear. It sounded to me like a sticky or dirty injector. I'd suggest like others running an algaecide and then some fuel system treatment.
My 2009 B3200 doesn't have any exhaust after treatment so I also add an ounce of marine two stroke oil to my fuel. Helps lubricate the injectors what the added sulphur used to do that is now gone. I use the two stroke oil in my Common rail Dodge diesel when towing or working it hard. It's still a 5.9 with no Smog crap on it.
My 2009 B3200 doesn't have any exhaust after treatment so I also add an ounce of marine two stroke oil to my fuel. Helps lubricate the injectors what the added sulphur used to do that is now gone. I use the two stroke oil in my Common rail Dodge diesel when towing or working it hard. It's still a 5.9 with no Smog crap on it.
I believe that’s a misinformed idea ...that 2-stroke oil is good for diesels. And, it is also regulated to be low-sulfur so it does not “replace” sulfur as in the old fuel specs. Don’t remember where the article was published, but 2-stoke oil was debunked as a diesel fuel additive.